Vanara/PInvoke/Graphics/Direct2D/D2d1.Interfaces2.cs

using System;
using System.Runtime.InteropServices;
using static Vanara.PInvoke.Dwrite;
using static Vanara.PInvoke.DXGI;
using static Vanara.PInvoke.WindowsCodecs;

namespace Vanara.PInvoke
{
	/// <summary>Items from the D2d1.dll</summary>
	public static partial class D2d1
	{
		/// <summary>Represents a resource domain whose objects and device contexts can be used together.</summary>
		// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nn-d2d1_1-id2d1device
		[PInvokeData("d2d1_1.h", MSDNShortId = "21f77c38-c115-4fdf-b294-570577a29201")]
		[ComImport, Guid("47dd575d-ac05-4cdd-8049-9b02cd16f44c"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		public interface ID2D1Device : ID2D1Resource
		{
			/// <summary>Retrieves the factory associated with this resource.</summary>
			/// <param name="factory">
			/// <para>Type: <c>ID2D1Factory**</c></para>
			/// <para>
			/// When this method returns, contains a pointer to a pointer to the factory that created this resource. This parameter is
			/// passed uninitialized.
			/// </para>
			/// </param>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1resource-getfactory void GetFactory( ID2D1Factory
			// **factory );
			[PreserveSig]
			new void GetFactory(out ID2D1Factory factory);

			/// <summary>Creates a new device context from a Direct2D device.</summary>
			/// <param name="options">
			/// <para>Type: <c>D2D1_DEVICE_CONTEXT_OPTIONS</c></para>
			/// <para>The options to be applied to the created device context.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>const ID2D1DeviceContext**</c></para>
			/// <para>When this method returns, contains the address of a pointer to the new device context.</para>
			/// </returns>
			/// <remarks>
			/// The new device context will not have a selected target bitmap. The caller must create and select a bitmap as the target
			/// surface of the context.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1device-createdevicecontext HRESULT
			// CreateDeviceContext( D2D1_DEVICE_CONTEXT_OPTIONS options, ID2D1DeviceContext **deviceContext );
			ID2D1DeviceContext CreateDeviceContext(D2D1_DEVICE_CONTEXT_OPTIONS options);

			/// <summary>
			/// Creates an ID2D1PrintControl object that converts Direct2D primitives stored in ID2D1CommandList into a fixed page
			/// representation. The print sub-system then consumes the primitives.
			/// </summary>
			/// <param name="wicFactory">
			/// <para>Type: <c>IWICImagingFactory*</c></para>
			/// <para>A WIC imaging factory.</para>
			/// </param>
			/// <param name="documentTarget">
			/// <para>Type: <c>IPrintDocumentPackageTarget*</c></para>
			/// <para>The target print job for this control.</para>
			/// </param>
			/// <param name="printControlProperties">
			/// <para>Type: <c>const D2D1_PRINT_CONTROL_PROPERTIES*</c></para>
			/// <para>The options to be applied to the print control.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1PrintControl**</c></para>
			/// <para>When this method returns, contains the address of a pointer to an ID2D1PrintControl object.</para>
			/// </returns>
			/// <remarks>
			/// <c>Note</c> This is a blocking or synchronous function and might not return immediately. How quickly this function returns
			/// depends on run-time factors such as network status, print server configuration, and printer driver implementation—factors
			/// that are difficult to predict when writing an application. Calling this function from a thread that manages interaction with
			/// the user interface could make the application appear to be unresponsive.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1device-createprintcontrol(iwicimagingfactory_iprintdocumentpackagetarget_constd2d1_print_control_properties_id2d1printcontrol)
			// HRESULT CreatePrintControl( IWICImagingFactory *wicFactory, IPrintDocumentPackageTarget *documentTarget, const
			// D2D1_PRINT_CONTROL_PROPERTIES *printControlProperties, ID2D1PrintControl **printControl );
			ID2D1PrintControl CreatePrintControl(IWICImagingFactory wicFactory, [In, MarshalAs(UnmanagedType.Interface)] /*IPrintDocumentPackageTarget*/ object documentTarget, in D2D1_PRINT_CONTROL_PROPERTIES printControlProperties);

			/// <summary>
			/// Sets the maximum amount of texture memory Direct2D accumulates before it purges the image caches and cached texture allocations.
			/// </summary>
			/// <param name="maximumInBytes">
			/// <para>Type: <c>UINT64</c></para>
			/// <para>The new maximum texture memory in bytes.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <c>Note</c> Direct2D may exceed the maximum texture memory you set with this method for a single frame if necessary to
			/// render the frame.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1device-setmaximumtexturememory void
			// SetMaximumTextureMemory( UINT64 maximumInBytes );
			[PreserveSig]
			void SetMaximumTextureMemory(ulong maximumInBytes);

			/// <summary>
			/// Sets the maximum amount of texture memory Direct2D accumulates before it purges the image caches and cached texture allocations.
			/// </summary>
			/// <returns>
			/// <para>Type: <c>UINT64</c></para>
			/// <para>The maximum amount of texture memory in bytes.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1device-getmaximumtexturememory UINT64 GetMaximumTextureMemory();
			[PreserveSig]
			ulong GetMaximumTextureMemory();

			/// <summary>Clears all of the rendering resources used by Direct2D.</summary>
			/// <param name="millisecondsSinceUse">
			/// <para>Type: <c>UINT</c></para>
			/// <para>
			/// Discards only resources that haven't been used for greater than the specified time in milliseconds. The default is 0 milliseconds.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>HRESULT</c></para>
			/// <para>If the function succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1device-clearresources void ClearResources( UINT32
			// millisecondsSinceUse );
			[PreserveSig]
			void ClearResources(uint millisecondsSinceUse);
		}

		/// <summary>
		/// <para>Represents a set of state and command buffers that are used to render to a target.</para>
		/// <para>The device context can render to a target bitmap or a command list.</para>
		/// </summary>
		/// <remarks>
		/// Any resource created from a device context can be shared with any other resource created from a device context when both
		/// contexts are created on the same device.
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nn-d2d1_1-id2d1devicecontext
		[PInvokeData("d2d1_1.h", MSDNShortId = "a54dd628-c2a2-4b04-9ced-7749a395f187")]
		[ComImport, Guid("e8f7fe7a-191c-466d-ad95-975678bda998"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		public interface ID2D1DeviceContext : ID2D1RenderTarget
		{
			/// <summary>Retrieves the factory associated with this resource.</summary>
			/// <param name="factory">
			/// <para>Type: <c>ID2D1Factory**</c></para>
			/// <para>
			/// When this method returns, contains a pointer to a pointer to the factory that created this resource. This parameter is
			/// passed uninitialized.
			/// </para>
			/// </param>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1resource-getfactory void GetFactory( ID2D1Factory
			// **factory );
			[PreserveSig]
			new void GetFactory(out ID2D1Factory factory);

			/// <summary>Creates a Direct2D bitmap from a pointer to in-memory source data.</summary>
			/// <param name="size">
			/// <para>Type: [in] <c>D2D1_SIZE_U</c></para>
			/// <para>The dimensions of the bitmap to create in pixels.</para>
			/// </param>
			/// <param name="srcData">
			/// <para>Type: [in, optional] <c>const void*</c></para>
			/// <para>A pointer to the memory location of the image data, or <c>NULL</c> to create an uninitialized bitmap.</para>
			/// </param>
			/// <param name="pitch">
			/// <para>Type: [in] <c>UINT32</c></para>
			/// <para>
			/// The byte count of each scanline, which is equal to (the image width in pixels × the number of bytes per pixel) + memory
			/// padding. If srcData is <c>NULL</c>, this value is ignored. (Note that pitch is also sometimes called stride.)
			/// </para>
			/// </param>
			/// <param name="bitmapProperties">
			/// <para>Type: [in] <c>const D2D1_BITMAP_PROPERTIES &amp;</c></para>
			/// <para>The pixel format and dots per inch (DPI) of the bitmap to create.</para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1Bitmap**</c></para>
			/// <para>When this method returns, contains a pointer to a pointer to the new bitmap. This parameter is passed uninitialized.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createbitmap(d2d1_size_u_constvoid_uint32_constd2d1_bitmap_properties__id2d1bitmap)
			// HRESULT CreateBitmap( D2D1_SIZE_U size, const void *srcData, UINT32 pitch, const D2D1_BITMAP_PROPERTIES &amp;
			// bitmapProperties, ID2D1Bitmap **bitmap );
			new ID2D1Bitmap CreateBitmap(D2D_SIZE_U size, [In, Optional] IntPtr srcData, uint pitch, in D2D1_BITMAP_PROPERTIES bitmapProperties);

			/// <summary>Creates an ID2D1Bitmap by copying the specified Microsoft Windows Imaging Component (WIC) bitmap.</summary>
			/// <param name="wicBitmapSource">
			/// <para>Type: [in] <c>IWICBitmapSource*</c></para>
			/// <para>The WIC bitmap to copy.</para>
			/// </param>
			/// <param name="bitmapProperties">
			/// <para>Type: [in, optional] <c>const D2D1_BITMAP_PROPERTIES*</c></para>
			/// <para>
			/// The pixel format and DPI of the bitmap to create. The pixel format must match the pixel format of wicBitmapSource, or the
			/// method will fail. To prevent a mismatch, you can pass <c>NULL</c> or pass the value obtained from calling the
			/// D2D1::PixelFormat helper function without specifying any parameter values. If both dpiX and dpiY are 0.0f, the default DPI,
			/// 96, is used. DPI information embedded in wicBitmapSource is ignored.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1Bitmap**</c></para>
			/// <para>When this method returns, contains the address of a pointer to the new bitmap. This parameter is passed uninitialized.</para>
			/// </returns>
			/// <remarks>
			/// Before Direct2D can load a WIC bitmap, that bitmap must be converted to a supported pixel format and alpha mode. For a list
			/// of supported pixel formats and alpha modes, see Supported Pixel Formats and Alpha Modes.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createbitmapfromwicbitmap(iwicbitmapsource_constd2d1_bitmap_properties_id2d1bitmap)
			// HRESULT CreateBitmapFromWicBitmap( IWICBitmapSource *wicBitmapSource, const D2D1_BITMAP_PROPERTIES *bitmapProperties,
			// ID2D1Bitmap **bitmap );
			new ID2D1Bitmap CreateBitmapFromWicBitmap(IWICBitmapSource wicBitmapSource, [In, Optional] IntPtr bitmapProperties);

			/// <summary>Creates an ID2D1Bitmap whose data is shared with another resource.</summary>
			/// <param name="riid">
			/// <para>Type: <c>REFIID</c></para>
			/// <para>The interface ID of the object supplying the source data.</para>
			/// </param>
			/// <param name="data">
			/// <para>Type: <c>void*</c></para>
			/// <para>
			/// An ID2D1Bitmap, IDXGISurface, or an IWICBitmapLock that contains the data to share with the new <c>ID2D1Bitmap</c>. For more
			/// information, see the Remarks section.
			/// </para>
			/// </param>
			/// <param name="bitmapProperties">
			/// <para>Type: <c>D2D1_BITMAP_PROPERTIES*</c></para>
			/// <para>
			/// The pixel format and DPI of the bitmap to create . The DXGI_FORMAT portion of the pixel format must match the DXGI_FORMAT of
			/// data or the method will fail, but the alpha modes don't have to match. To prevent a mismatch, you can pass <c>NULL</c> or
			/// the value obtained from the D2D1::PixelFormat helper function. The DPI settings do not have to match those of data. If both
			/// dpiX and dpiY are 0.0f, the DPI of the render target is used.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1Bitmap**</c></para>
			/// <para>When this method returns, contains the address of a pointer to the new bitmap. This parameter is passed uninitialized.</para>
			/// </returns>
			/// <remarks>
			/// <para>
			/// The <c>CreateSharedBitmap</c> method is useful for efficiently reusing bitmap data and can also be used to provide
			/// interoperability with Direct3D.
			/// </para>
			/// <para>Sharing an ID2D1Bitmap</para>
			/// <para>
			/// By passing an ID2D1Bitmap created by a render target that is resource-compatible, you can share a bitmap with that render
			/// target; both the original <c>ID2D1Bitmap</c> and the new <c>ID2D1Bitmap</c> created by this method will point to the same
			/// bitmap data. For more information about when render target resources can be shared, see the Sharing Render Target Resources
			/// section of the Resources Overview.
			/// </para>
			/// <para>
			/// You may also use this method to reinterpret the data of an existing bitmap and specify a new DPI or alpha mode. For example,
			/// in the case of a bitmap atlas, an ID2D1Bitmap may contain multiple sub-images, each of which should be rendered with a
			/// different D2D1_ALPHA_MODE ( <c>D2D1_ALPHA_MODE_PREMULTIPLIED</c> or <c>D2D1_ALPHA_MODE_IGNORE</c>). You could use the
			/// <c>CreateSharedBitmap</c> method to reinterpret the bitmap using the desired alpha mode without having to load a separate
			/// copy of the bitmap into memory.
			/// </para>
			/// <para>Sharing an IDXGISurface</para>
			/// <para>
			/// When using a DXGI surface render target (an ID2D1RenderTarget object created by the CreateDxgiSurfaceRenderTarget method),
			/// you can pass an IDXGISurface surface to the <c>CreateSharedBitmap</c> method to share video memory with Direct3D and
			/// manipulate Direct3D content as an ID2D1Bitmap. As described in the Resources Overview, the render target and the
			/// IDXGISurface must be using the same Direct3D device.
			/// </para>
			/// <para>
			/// Note also that the IDXGISurface must use one of the supported pixel formats and alpha modes described in Supported Pixel
			/// Formats and Alpha Modes.
			/// </para>
			/// <para>For more information about interoperability with Direct3D, see the Direct2D and Direct3D Interoperability Overview.</para>
			/// <para>Sharing an IWICBitmapLock</para>
			/// <para>
			/// An IWICBitmapLock stores the content of a WIC bitmap and shields it from simultaneous accesses. By passing an
			/// <c>IWICBitmapLock</c> to the <c>CreateSharedBitmap</c> method, you can create an ID2D1Bitmap that points to the bitmap data
			/// already stored in the <c>IWICBitmapLock</c>.
			/// </para>
			/// <para>
			/// To use an IWICBitmapLock with the <c>CreateSharedBitmap</c> method, the render target must use software rendering. To force
			/// a render target to use software rendering, set to D2D1_RENDER_TARGET_TYPE_SOFTWARE the <c>type</c> field of the
			/// D2D1_RENDER_TARGET_PROPERTIES structure that you use to create the render target. To check whether an existing render target
			/// uses software rendering, use the IsSupported method.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createsharedbitmap HRESULT
			// CreateSharedBitmap( REFIID riid, void *data, const D2D1_BITMAP_PROPERTIES *bitmapProperties, ID2D1Bitmap **bitmap );
			new ID2D1Bitmap CreateSharedBitmap(in Guid riid, [In, Out] IntPtr data, [In, Optional] IntPtr bitmapProperties);

			/// <summary>Creates an ID2D1BitmapBrush from the specified bitmap.</summary>
			/// <param name="bitmap">
			/// <para>Type: <c>ID2D1Bitmap*</c></para>
			/// <para>The bitmap contents of the new brush.</para>
			/// </param>
			/// <param name="bitmapBrushProperties">
			/// <para>Type: <c>D2D1_BITMAP_BRUSH_PROPERTIES*</c></para>
			/// <para>
			/// The extend modes and interpolation mode of the new brush, or <c>NULL</c>. If you set this parameter to <c>NULL</c>, the
			/// brush defaults to the D2D1_EXTEND_MODE_CLAMP horizontal and vertical extend modes and the
			/// D2D1_BITMAP_INTERPOLATION_MODE_LINEAR interpolation mode.
			/// </para>
			/// </param>
			/// <param name="brushProperties">
			/// <para>Type: <c>D2D1_BRUSH_PROPERTIES*</c></para>
			/// <para>
			/// A structure that contains the opacity and transform of the new brush, or <c>NULL</c>. If you set this parameter to
			/// <c>NULL</c>, the brush sets the opacity member to 1.0F and the transform member to the identity matrix.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1BitmapBrush**</c></para>
			/// <para>
			/// When this method returns, this output parameter contains a pointer to a pointer to the new brush. Pass this parameter uninitialized.
			/// </para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createbitmapbrush(id2d1bitmap_constd2d1_bitmap_brush_properties_constd2d1_brush_properties_id2d1bitmapbrush)
			// HRESULT CreateBitmapBrush( ID2D1Bitmap *bitmap, const D2D1_BITMAP_BRUSH_PROPERTIES *bitmapBrushProperties, const
			// D2D1_BRUSH_PROPERTIES *brushProperties, ID2D1BitmapBrush **bitmapBrush );
			new ID2D1BitmapBrush CreateBitmapBrush([In, Optional] ID2D1Bitmap bitmap, [In, Optional] IntPtr bitmapBrushProperties, [In, Optional] IntPtr brushProperties);

			/// <summary>Creates a new ID2D1SolidColorBrush that has the specified color and opacity.</summary>
			/// <param name="color">
			/// <para>Type: [in] <c>const D2D1_COLOR_F &amp;</c></para>
			/// <para>The red, green, blue, and alpha values of the brush's color.</para>
			/// </param>
			/// <param name="brushProperties">
			/// <para>Type: [in] <c>const D2D1_BRUSH_PROPERTIES &amp;</c></para>
			/// <para>The base opacity of the brush.</para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1SolidColorBrush**</c></para>
			/// <para>When this method returns, contains the address of a pointer to the new brush. This parameter is passed uninitialized.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createsolidcolorbrush(constd2d1_color_f__constd2d1_brush_properties__id2d1solidcolorbrush)
			// HRESULT CreateSolidColorBrush( const D2D1_COLOR_F &amp; color, const D2D1_BRUSH_PROPERTIES &amp; brushProperties,
			// ID2D1SolidColorBrush **solidColorBrush );
			new ID2D1SolidColorBrush CreateSolidColorBrush(in D3DCOLORVALUE color, [In, Optional] IntPtr brushProperties);

			/// <summary>Creates an ID2D1GradientStopCollection from the specified array of D2D1_GRADIENT_STOP structures.</summary>
			/// <param name="gradientStops">
			/// <para>Type: [in] <c>D2D1_GRADIENT_STOP*</c></para>
			/// <para>A pointer to an array of D2D1_GRADIENT_STOP structures.</para>
			/// </param>
			/// <param name="gradientStopsCount">
			/// <para>Type: [in] <c>UINT</c></para>
			/// <para>A value greater than or equal to 1 that specifies the number of gradient stops in the gradientStops array.</para>
			/// </param>
			/// <param name="colorInterpolationGamma">
			/// <para>Type: [in] <c>D2D1_GAMMA</c></para>
			/// <para>The space in which color interpolation between the gradient stops is performed.</para>
			/// </param>
			/// <param name="extendMode">
			/// <para>Type: [in] <c>D2D1_EXTEND_MODE</c></para>
			/// <para>The behavior of the gradient outside the [0,1] normalized range.</para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1GradientStopCollection**</c></para>
			/// <para>When this method returns, contains a pointer to a pointer to the new gradient stop collection.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-creategradientstopcollection%28constd2d1_gradient_stop_uint32_d2d1_gamma_d2d1_extend_mode_id2d1gradientstopcollection%29
			// HRESULT CreateGradientStopCollection( const D2D1_GRADIENT_STOP *gradientStops, UINT32 gradientStopsCount, D2D1_GAMMA
			// colorInterpolationGamma, D2D1_EXTEND_MODE extendMode, ID2D1GradientStopCollection **gradientStopCollection );
			new ID2D1GradientStopCollection CreateGradientStopCollection([In] D2D1_GRADIENT_STOP[] gradientStops, uint gradientStopsCount, D2D1_GAMMA colorInterpolationGamma, D2D1_EXTEND_MODE extendMode);

			/// <summary>Creates an ID2D1LinearGradientBrush object for painting areas with a linear gradient.</summary>
			/// <param name="linearGradientBrushProperties">
			/// <para>Type: [in] <c>const D2D1_LINEAR_GRADIENT_BRUSH_PROPERTIES*</c></para>
			/// <para>The start and end points of the gradient.</para>
			/// </param>
			/// <param name="brushProperties">
			/// <para>Type: [in] <c>const D2D1_BRUSH_PROPERTIES*</c></para>
			/// <para>The transform and base opacity of the new brush.</para>
			/// </param>
			/// <param name="gradientStopCollection">
			/// <para>Type: [in] <c>ID2D1GradientStopCollection*</c></para>
			/// <para>
			/// A collection of D2D1_GRADIENT_STOP structures that describe the colors in the brush's gradient and their locations along the
			/// gradient line.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1LinearGradientBrush**</c></para>
			/// <para>When this method returns, contains the address of a pointer to the new brush. This parameter is passed uninitialized.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createlineargradientbrush%28constd2d1_linear_gradient_brush_properties_constd2d1_brush_properties_id2d1gradientstopcollection_id2d1lineargradientbrush%29
			// HRESULT CreateLinearGradientBrush( const D2D1_LINEAR_GRADIENT_BRUSH_PROPERTIES *linearGradientBrushProperties, const
			// D2D1_BRUSH_PROPERTIES *brushProperties, ID2D1GradientStopCollection *gradientStopCollection, ID2D1LinearGradientBrush
			// **linearGradientBrush );
			new ID2D1LinearGradientBrush CreateLinearGradientBrush(in D2D1_LINEAR_GRADIENT_BRUSH_PROPERTIES linearGradientBrushProperties, [In, Optional] IntPtr brushProperties, [In] ID2D1GradientStopCollection gradientStopCollection);

			/// <summary>Creates an ID2D1RadialGradientBrush object that can be used to paint areas with a radial gradient.</summary>
			/// <param name="radialGradientBrushProperties">
			/// <para>Type: <c>const D2D1_RADIAL_GRADIENT_BRUSH_PROPERTIES*</c></para>
			/// <para>The center, gradient origin offset, and x-radius and y-radius of the brush's gradient.</para>
			/// </param>
			/// <param name="brushProperties">
			/// <para>Type: [in] <c>const D2D1_BRUSH_PROPERTIES*</c></para>
			/// <para>The transform and base opacity of the new brush.</para>
			/// </param>
			/// <param name="gradientStopCollection">
			/// <para>Type: [in] <c>ID2D1GradientStopCollection*</c></para>
			/// <para>
			/// A collection of D2D1_GRADIENT_STOP structures that describe the colors in the brush's gradient and their locations along the gradient.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1RadialGradientBrush**</c></para>
			/// <para>When this method returns, contains a pointer to a pointer to the new brush. This parameter is passed uninitialized.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createradialgradientbrush%28constd2d1_radial_gradient_brush_properties_constd2d1_brush_properties_id2d1gradientstopcollection_id2d1radialgradientbrush%29
			// HRESULT CreateRadialGradientBrush( const D2D1_RADIAL_GRADIENT_BRUSH_PROPERTIES *radialGradientBrushProperties, const
			// D2D1_BRUSH_PROPERTIES *brushProperties, ID2D1GradientStopCollection *gradientStopCollection, ID2D1RadialGradientBrush
			// **radialGradientBrush );
			new ID2D1RadialGradientBrush CreateRadialGradientBrush(in D2D1_RADIAL_GRADIENT_BRUSH_PROPERTIES radialGradientBrushProperties, [In, Optional] IntPtr brushProperties, [In] ID2D1GradientStopCollection gradientStopCollection);

			/// <summary>
			/// Creates a bitmap render target for use during intermediate offscreen drawing that is compatible with the current render target.
			/// </summary>
			/// <param name="desiredSize">
			/// <para>Type: [in] <c>const D2D1_SIZE_F*</c></para>
			/// <para>
			/// The desired size of the new render target (in device-independent pixels), if it should be different from the original render
			/// target. For more info, see the Remarks section.
			/// </para>
			/// </param>
			/// <param name="desiredPixelSize">
			/// <para>Type: [in] <c>const D2D1_SIZE_U*</c></para>
			/// <para>
			/// The desired size of the new render target in pixels if it should be different from the original render target. For more
			/// information, see the Remarks section.
			/// </para>
			/// </param>
			/// <param name="desiredFormat">
			/// <para>Type: [in] <c>const D2D1_PIXEL_FORMAT*</c></para>
			/// <para>
			/// The desired pixel format and alpha mode of the new render target. If the pixel format is set to DXGI_FORMAT_UNKNOWN, the new
			/// render target uses the same pixel format as the original render target. If the alpha mode is D2D1_ALPHA_MODE_UNKNOWN, the
			/// alpha mode of the new render target defaults to <c>D2D1_ALPHA_MODE_PREMULTIPLIED</c>. For information about supported pixel
			/// formats, see Supported Pixel Formats and Alpha Modes.
			/// </para>
			/// </param>
			/// <param name="options">
			/// <para>Type: [in] <c>D2D1_COMPATIBLE_RENDER_TARGET_OPTIONS</c></para>
			/// <para>A value that specifies whether the new render target must be compatible with GDI.</para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1BitmapRenderTarget**</c></para>
			/// <para>
			/// When this method returns, contains a pointer to a pointer to a new bitmap render target. This parameter is passed uninitialized.
			/// </para>
			/// </returns>
			/// <remarks>
			/// <para>The pixel size and DPI of the new render target can be altered by specifying values for desiredSize or desiredPixelSize:</para>
			/// <list type="bullet">
			/// <item>
			/// <term>
			/// If desiredSize is specified but desiredPixelSize is not, the pixel size is computed from the desired size using the parent
			/// target DPI. If the desiredSize maps to a integer-pixel size, the DPI of the compatible render target is the same as the DPI
			/// of the parent target. If desiredSize maps to a fractional-pixel size, the pixel size is rounded up to the nearest integer
			/// and the DPI for the compatible render target is slightly higher than the DPI of the parent render target. In all cases, the
			/// coordinate (desiredSize.width, desiredSize.height) maps to the lower-right corner of the compatible render target.
			/// </term>
			/// </item>
			/// <item>
			/// <term>
			/// If the desiredPixelSize is specified and desiredSize is not, the DPI of the new render target is the same as the original
			/// render target.
			/// </term>
			/// </item>
			/// <item>
			/// <term>
			/// If both desiredSize and desiredPixelSize are specified, the DPI of the new render target is computed to account for the
			/// difference in scale.
			/// </term>
			/// </item>
			/// <item>
			/// <term>
			/// If neither desiredSize nor desiredPixelSize is specified, the new render target size and DPI match the original render target.
			/// </term>
			/// </item>
			/// </list>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createcompatiblerendertarget(constd2d1_size_f_constd2d1_size_u_constd2d1_pixel_format_d2d1_compatible_render_target_options_id2d1bitmaprendertarget)
			// HRESULT CreateCompatibleRenderTarget( const D2D1_SIZE_F *desiredSize, const D2D1_SIZE_U *desiredPixelSize, const
			// D2D1_PIXEL_FORMAT *desiredFormat, D2D1_COMPATIBLE_RENDER_TARGET_OPTIONS options, ID2D1BitmapRenderTarget **bitmapRenderTarget );
			new ID2D1BitmapRenderTarget CreateCompatibleRenderTarget([In, Optional] IntPtr desiredSize, [In, Optional] IntPtr desiredPixelSize, [In, Optional] IntPtr desiredFormat, [In, Optional] D2D1_COMPATIBLE_RENDER_TARGET_OPTIONS options);

			/// <summary>Creates a layer resource that can be used with this render target and its compatible render targets.</summary>
			/// <param name="size">
			/// <para>Type: [in] <c>const D2D1_SIZE_F*</c></para>
			/// <para>
			/// If (0, 0) is specified, no backing store is created behind the layer resource. The layer resource is allocated to the
			/// minimum size when PushLayer is called.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1Layer**</c></para>
			/// <para>When the method returns, contains a pointer to a pointer to the new layer. This parameter is passed uninitialized.</para>
			/// </returns>
			/// <remarks>The layer automatically resizes itself, as needed.</remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createlayer(constd2d1_size_f_id2d1layer)
			// HRESULT CreateLayer( const D2D1_SIZE_F *size, ID2D1Layer **layer );
			new ID2D1Layer CreateLayer([In, Optional] IntPtr size);

			/// <summary>Create a mesh that uses triangles to describe a shape.</summary>
			/// <returns>
			/// <para>Type: <c>ID2D1Mesh**</c></para>
			/// <para>When this method returns, contains a pointer to a pointer to the new mesh.</para>
			/// </returns>
			/// <remarks>
			/// To populate a mesh, use its Open method to obtain an ID2D1TessellationSink. To draw the mesh, use the render target's
			/// FillMesh method.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-createmesh HRESULT CreateMesh( ID2D1Mesh
			// **mesh );
			new ID2D1Mesh CreateMesh();

			/// <summary>Draws a line between the specified points using the specified stroke style.</summary>
			/// <param name="point0">
			/// <para>Type: <c>D2D1_POINT_2F</c></para>
			/// <para>The start point of the line, in device-independent pixels.</para>
			/// </param>
			/// <param name="point1">
			/// <para>Type: <c>D2D1_POINT_2F</c></para>
			/// <para>The end point of the line, in device-independent pixels.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the line's stroke.</para>
			/// </param>
			/// <param name="strokeWidth">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>
			/// The width of the stroke, in device-independent pixels. The value must be greater than or equal to 0.0f. If this parameter
			/// isn't specified, it defaults to 1.0f. The stroke is centered on the line.
			/// </para>
			/// </param>
			/// <param name="strokeStyle">
			/// <para>Type: <c>ID2D1StrokeStyle*</c></para>
			/// <para>The style of stroke to paint, or <c>NULL</c> to paint a solid line.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as <c>DrawLine</c>)
			/// failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-drawline void DrawLine( D2D1_POINT_2F
			// point0, D2D1_POINT_2F point1, ID2D1Brush *brush, FLOAT strokeWidth, ID2D1StrokeStyle *strokeStyle );
			[PreserveSig]
			new void DrawLine(D2D_POINT_2F point0, D2D_POINT_2F point1, [In] ID2D1Brush brush, float strokeWidth = 1.0f, [In] ID2D1StrokeStyle strokeStyle = null);

			/// <summary>Draws the outline of a rectangle that has the specified dimensions and stroke style.</summary>
			/// <param name="rect">
			/// <para>Type: [in] <c>const D2D1_RECT_F &amp;</c></para>
			/// <para>The dimensions of the rectangle to draw, in device-independent pixels.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: [in] <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the rectangle's stroke.</para>
			/// </param>
			/// <param name="strokeWidth">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The width of the stroke, in device-independent pixels. The value must be greater than or equal to 0.0f. If this parameter
			/// isn't specified, it defaults to 1.0f. The stroke is centered on the line.
			/// </para>
			/// </param>
			/// <param name="strokeStyle">
			/// <para>Type: [in, optional] <c>ID2D1StrokeStyle*</c></para>
			/// <para>The style of stroke to paint, or <c>NULL</c> to paint a solid stroke.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// When this method fails, it does not return an error code. To determine whether a drawing method (such as DrawRectangle)
			/// failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush method.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-drawrectangle(constd2d1_rect_f__id2d1brush_float_id2d1strokestyle)
			// void DrawRectangle( const D2D1_RECT_F &amp; rect, ID2D1Brush *brush, FLOAT strokeWidth, ID2D1StrokeStyle *strokeStyle );
			[PreserveSig]
			new void DrawRectangle(in D2D_RECT_F rect, [In] ID2D1Brush brush, float strokeWidth = 1.0f, [In] ID2D1StrokeStyle strokeStyle = null);

			/// <summary>Paints the interior of the specified rectangle.</summary>
			/// <param name="rect">
			/// <para>Type: [in] <c>const D2D1_RECT_F &amp;</c></para>
			/// <para>The dimension of the rectangle to paint, in device-independent pixels.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: [in] <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the rectangle's interior.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as FillRectangle)
			/// failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-fillrectangle(constd2d1_rect_f__id2d1brush)
			// void FillRectangle( const D2D1_RECT_F &amp; rect, ID2D1Brush *brush );
			[PreserveSig]
			new void FillRectangle(in D2D_RECT_F rect, [In] ID2D1Brush brush);

			/// <summary>Draws the outline of the specified rounded rectangle using the specified stroke style.</summary>
			/// <param name="roundedRect">
			/// <para>Type: [in] <c>const D2D1_ROUNDED_RECT &amp;</c></para>
			/// <para>The dimensions of the rounded rectangle to draw, in device-independent pixels.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: [in] <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the rounded rectangle's outline.</para>
			/// </param>
			/// <param name="strokeWidth">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The width of the stroke, in device-independent pixels. The value must be greater than or equal to 0.0f. If this parameter
			/// isn't specified, it defaults to 1.0f. The stroke is centered on the line.
			/// </para>
			/// </param>
			/// <param name="strokeStyle">
			/// <para>Type: [in, optional] <c>ID2D1StrokeStyle*</c></para>
			/// <para>The style of the rounded rectangle's stroke, or <c>NULL</c> to paint a solid stroke. The default value is <c>NULL</c>.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as
			/// DrawRoundedRectangle) failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-drawroundedrectangle(constd2d1_rounded_rect__id2d1brush_float_id2d1strokestyle)
			// void DrawRoundedRectangle( const D2D1_ROUNDED_RECT &amp; roundedRect, ID2D1Brush *brush, FLOAT strokeWidth, ID2D1StrokeStyle
			// *strokeStyle );
			[PreserveSig]
			new void DrawRoundedRectangle(in D2D1_ROUNDED_RECT roundedRect, [In] ID2D1Brush brush, float strokeWidth = 1.0f, [In] ID2D1StrokeStyle strokeStyle = null);

			/// <summary>Paints the interior of the specified rounded rectangle.</summary>
			/// <param name="roundedRect">
			/// <para>Type: [in] <c>const D2D1_ROUNDED_RECT &amp;</c></para>
			/// <para>The dimensions of the rounded rectangle to paint, in device independent pixels.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: [in] <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the interior of the rounded rectangle.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as
			/// FillRoundedRectangle) failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-fillroundedrectangle(constd2d1_rounded_rect__id2d1brush)
			// void FillRoundedRectangle( const D2D1_ROUNDED_RECT &amp; roundedRect, ID2D1Brush *brush );
			[PreserveSig]
			new void FillRoundedRectangle(in D2D1_ROUNDED_RECT roundedRect, [In] ID2D1Brush brush);

			/// <summary>Draws the outline of the specified ellipse using the specified stroke style.</summary>
			/// <param name="ellipse">
			/// <para>Type: [in] <c>const D2D1_ELLIPSE &amp;</c></para>
			/// <para>The position and radius of the ellipse to draw, in device-independent pixels.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: [in] <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the ellipse's outline.</para>
			/// </param>
			/// <param name="strokeWidth">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The width of the stroke, in device-independent pixels. The value must be greater than or equal to 0.0f. If this parameter
			/// isn't specified, it defaults to 1.0f. The stroke is centered on the line.
			/// </para>
			/// </param>
			/// <param name="strokeStyle">
			/// <para>Type: [in, optional] <c>ID2D1StrokeStyle*</c></para>
			/// <para>The style of stroke to apply to the ellipse's outline, or <c>NULL</c> to paint a solid stroke.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// The DrawEllipse method doesn't return an error code if it fails. To determine whether a drawing operation (such as
			/// <c>DrawEllipse</c>) failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-drawellipse(constd2d1_ellipse__id2d1brush_float_id2d1strokestyle)
			// void DrawEllipse( const D2D1_ELLIPSE &amp; ellipse, ID2D1Brush *brush, FLOAT strokeWidth, ID2D1StrokeStyle *strokeStyle );
			[PreserveSig]
			new void DrawEllipse(in D2D1_ELLIPSE ellipse, [In] ID2D1Brush brush, float strokeWidth = 1.0f, [In] ID2D1StrokeStyle strokeStyle = null);

			/// <summary>Paints the interior of the specified ellipse.</summary>
			/// <param name="ellipse">
			/// <para>Type: [in] <c>const D2D1_ELLIPSE &amp;</c></para>
			/// <para>The position and radius, in device-independent pixels, of the ellipse to paint.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: [in] <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the interior of the ellipse.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as FillEllipse) failed,
			/// check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-fillellipse(constd2d1_ellipse__id2d1brush)
			// void FillEllipse( const D2D1_ELLIPSE &amp; ellipse, ID2D1Brush *brush );
			[PreserveSig]
			new void FillEllipse(in D2D1_ELLIPSE ellipse, [In] ID2D1Brush brush);

			/// <summary>Draws the outline of the specified geometry using the specified stroke style.</summary>
			/// <param name="geometry">
			/// <para>Type: <c>ID2D1Geometry*</c></para>
			/// <para>The geometry to draw.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the geometry's stroke.</para>
			/// </param>
			/// <param name="strokeWidth">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>
			/// The width of the stroke, in device-independent pixels. The value must be greater than or equal to 0.0f. If this parameter
			/// isn't specified, it defaults to 1.0f. The stroke is centered on the line.
			/// </para>
			/// </param>
			/// <param name="strokeStyle">
			/// <para>Type: <c>ID2D1StrokeStyle*</c></para>
			/// <para>The style of stroke to apply to the geometry's outline, or <c>NULL</c> to paint a solid stroke.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as <c>DrawGeometry</c>)
			/// failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-drawgeometry void DrawGeometry(
			// ID2D1Geometry *geometry, ID2D1Brush *brush, FLOAT strokeWidth, ID2D1StrokeStyle *strokeStyle );
			[PreserveSig]
			new void DrawGeometry([In] ID2D1Geometry geometry, [In] ID2D1Brush brush, float strokeWidth = 1.0f, [In] ID2D1StrokeStyle strokeStyle = null);

			/// <summary>Paints the interior of the specified geometry.</summary>
			/// <param name="geometry">
			/// <para>Type: <c>ID2D1Geometry*</c></para>
			/// <para>The geometry to paint.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the geometry's interior.</para>
			/// </param>
			/// <param name="opacityBrush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>
			/// The opacity mask to apply to the geometry, or <c>NULL</c> for no opacity mask. If an opacity mask (the opacityBrush
			/// parameter) is specified, brush must be an ID2D1BitmapBrush that has its x- and y-extend modes set to D2D1_EXTEND_MODE_CLAMP.
			/// For more information, see the Remarks section.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// If the opacityBrush parameter is not <c>NULL</c>, the alpha value of each pixel of the mapped opacityBrush is used to
			/// determine the resulting opacity of each corresponding pixel of the geometry. Only the alpha value of each color in the brush
			/// is used for this processing; all other color information is ignored.
			/// </para>
			/// <para>
			/// The alpha value specified by the brush is multiplied by the alpha value of the geometry after the geometry has been painted
			/// by brush.
			/// </para>
			/// <para>
			/// When this method fails, it does not return an error code. To determine whether a drawing operation (such as
			/// <c>FillGeometry</c>) failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush method.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-fillgeometry void FillGeometry(
			// ID2D1Geometry *geometry, ID2D1Brush *brush, ID2D1Brush *opacityBrush );
			[PreserveSig]
			new void FillGeometry([In] ID2D1Geometry geometry, [In] ID2D1Brush brush, [In] ID2D1Brush opacityBrush = null);

			/// <summary>Paints the interior of the specified mesh.</summary>
			/// <param name="mesh">
			/// <para>Type: <c>ID2D1Mesh*</c></para>
			/// <para>The mesh to paint.</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the mesh.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// The current antialias mode of the render target must be D2D1_ANTIALIAS_MODE_ALIASED when <c>FillMesh</c> is called. To
			/// change the render target's antialias mode, use the SetAntialiasMode method.
			/// </para>
			/// <para>
			/// <c>FillMesh</c> does not expect a particular winding order for the triangles in the ID2D1Mesh; both clockwise and
			/// counter-clockwise will work.
			/// </para>
			/// <para>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as <c>FillMesh</c>)
			/// failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-fillmesh void FillMesh( ID2D1Mesh *mesh,
			// ID2D1Brush *brush );
			[PreserveSig]
			new void FillMesh([In] ID2D1Mesh mesh, [In] ID2D1Brush brush);

			/// <summary>
			/// Applies the opacity mask described by the specified bitmap to a brush and uses that brush to paint a region of the render target.
			/// </summary>
			/// <param name="opacityMask">
			/// <para>Type: <c>ID2D1Bitmap*</c></para>
			/// <para>
			/// The opacity mask to apply to the brush. The alpha value of each pixel in the region specified by sourceRectangle is
			/// multiplied with the alpha value of the brush after the brush has been mapped to the area defined by destinationRectangle.
			/// </para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the region of the render target specified by destinationRectangle.</para>
			/// </param>
			/// <param name="content">
			/// <para>Type: <c>D2D1_OPACITY_MASK_CONTENT</c></para>
			/// <para>
			/// The type of content the opacity mask contains. The value is used to determine the color space in which the opacity mask is blended.
			/// </para>
			/// <para>
			/// <c>Note</c> Starting with Windows 8, the D2D1_OPACITY_MASK_CONTENT is not required. See the
			/// ID2D1DeviceContext::FillOpacityMask method, which has no <c>D2D1_OPACITY_MASK_CONTENT</c> parameter.
			/// </para>
			/// </param>
			/// <param name="destinationRectangle">
			/// <para>Type: <c>const D2D1_RECT_F</c></para>
			/// <para>The region of the render target to paint, in device-independent pixels.</para>
			/// </param>
			/// <param name="sourceRectangle">
			/// <para>Type: <c>const D2D1_RECT_F</c></para>
			/// <para>The region of the bitmap to use as the opacity mask, in device-independent pixels.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// For this method to work properly, the render target must be using the D2D1_ANTIALIAS_MODE_ALIASED antialiasing mode. You can
			/// set the antialiasing mode by calling the ID2D1RenderTarget::SetAntialiasMode method.
			/// </para>
			/// <para>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as FillOpacityMask)
			/// failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-fillopacitymask(id2d1bitmap_id2d1brush_d2d1_opacity_mask_content_constd2d1_rect_f__constd2d1_rect_f_)
			// void FillOpacityMask( ID2D1Bitmap *opacityMask, ID2D1Brush *brush, D2D1_OPACITY_MASK_CONTENT content, const D2D1_RECT_F &amp;
			// destinationRectangle, const D2D1_RECT_F &amp; sourceRectangle );
			[PreserveSig]
			new void FillOpacityMask([In] ID2D1Bitmap opacityMask, [In] ID2D1Brush brush, D2D1_OPACITY_MASK_CONTENT content, [In, Optional] IntPtr destinationRectangle, [In, Optional] IntPtr sourceRectangle);

			/// <summary>Draws the specified bitmap after scaling it to the size of the specified rectangle.</summary>
			/// <param name="bitmap">
			/// <para>Type: <c>ID2D1Bitmap*</c></para>
			/// <para>The bitmap to render.</para>
			/// </param>
			/// <param name="destinationRectangle">
			/// <para>Type: <c>const D2D1_RECT_F</c></para>
			/// <para>
			/// The size and position, in device-independent pixels in the render target's coordinate space, of the area to which the bitmap
			/// is drawn. If the rectangle is not well-ordered, nothing is drawn, but the render target does not enter an error state.
			/// </para>
			/// </param>
			/// <param name="opacity">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>
			/// A value between 0.0f and 1.0f, inclusive, that specifies an opacity value to apply to the bitmap; this value is multiplied
			/// against the alpha values of the bitmap's contents.
			/// </para>
			/// </param>
			/// <param name="interpolationMode">
			/// <para>Type: <c>D2D1_BITMAP_INTERPOLATION_MODE</c></para>
			/// <para>The interpolation mode to use if the bitmap is scaled or rotated by the drawing operation.</para>
			/// </param>
			/// <param name="sourceRectangle">
			/// <para>Type: <c>const D2D1_RECT_F</c></para>
			/// <para>
			/// The size and position, in device-independent pixels in the bitmap's coordinate space, of the area within the bitmap to draw.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as DrawBitmap) failed,
			/// check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-drawbitmap(id2d1bitmap_constd2d1_rect_f__float_d2d1_bitmap_interpolation_mode_constd2d1_rect_f_)
			// void DrawBitmap( ID2D1Bitmap *bitmap, const D2D1_RECT_F &amp; destinationRectangle, FLOAT opacity,
			// D2D1_BITMAP_INTERPOLATION_MODE interpolationMode, const D2D1_RECT_F &amp; sourceRectangle );
			[PreserveSig]
			new void DrawBitmap([In] ID2D1Bitmap bitmap, [In, Optional] IntPtr destinationRectangle, float opacity = 1.0f,
				D2D1_BITMAP_INTERPOLATION_MODE interpolationMode = D2D1_BITMAP_INTERPOLATION_MODE.D2D1_BITMAP_INTERPOLATION_MODE_LINEAR, [In] IntPtr sourceRectangle = default);

			/// <summary>Draws the specified text using the format information provided by an IDWriteTextFormat object.</summary>
			/// <param name="string">
			/// <para>Type: <c>WCHAR*</c></para>
			/// <para>A pointer to an array of Unicode characters to draw.</para>
			/// </param>
			/// <param name="stringLength">
			/// <para>Type: <c>UINT</c></para>
			/// <para>The number of characters in string.</para>
			/// </param>
			/// <param name="textFormat">
			/// <para>Type: <c>IDWriteTextFormat*</c></para>
			/// <para>An object that describes formatting details of the text to draw, such as the font, the font size, and flow direction.</para>
			/// </param>
			/// <param name="layoutRect">
			/// <para>Type: <c>const D2D1_RECT_F</c></para>
			/// <para>The size and position of the area in which the text is drawn.</para>
			/// </param>
			/// <param name="defaultFillBrush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the text.</para>
			/// </param>
			/// <param name="options">
			/// <para>Type: <c>D2D1_DRAW_TEXT_OPTIONS</c></para>
			/// <para>
			/// A value that indicates whether the text should be snapped to pixel boundaries and whether the text should be clipped to the
			/// layout rectangle. The default value is D2D1_DRAW_TEXT_OPTIONS_NONE, which indicates that text should be snapped to pixel
			/// boundaries and it should not be clipped to the layout rectangle.
			/// </para>
			/// </param>
			/// <param name="measuringMode">
			/// <para>Type: <c>DWRITE_MEASURING_MODE</c></para>
			/// <para>A value that indicates how glyph metrics are used to measure text when it is formatted. The default value is DWRITE_MEASURING_MODE_NATURAL.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>To create an IDWriteTextFormat object, create an IDWriteFactory and call its CreateTextFormat method.</para>
			/// <para>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as DrawText) failed,
			/// check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-drawtext(constwchar_uint32_idwritetextformat_constd2d1_rect_f__id2d1brush_d2d1_draw_text_options_dwrite_measuring_mode)
			// void DrawText( const WCHAR *string, UINT32 stringLength, IDWriteTextFormat *textFormat, const D2D1_RECT_F &amp; layoutRect,
			// ID2D1Brush *defaultFillBrush, D2D1_DRAW_TEXT_OPTIONS options, DWRITE_MEASURING_MODE measuringMode );
			[PreserveSig]
			new void DrawText([MarshalAs(UnmanagedType.LPWStr)] string @string, uint stringLength, [In] IDWriteTextFormat textFormat, in D2D_RECT_F layoutRect,
				[In] ID2D1Brush defaultFillBrush, D2D1_DRAW_TEXT_OPTIONS options = D2D1_DRAW_TEXT_OPTIONS.D2D1_DRAW_TEXT_OPTIONS_NONE,
				DWRITE_MEASURING_MODE measuringMode = DWRITE_MEASURING_MODE.DWRITE_MEASURING_MODE_NATURAL);

			/// <summary>Draws the formatted text described by the specified IDWriteTextLayout object.</summary>
			/// <param name="origin">
			/// <para>Type: <c>D2D1_POINT_2F</c></para>
			/// <para>
			/// The point, described in device-independent pixels, at which the upper-left corner of the text described by textLayout is drawn.
			/// </para>
			/// </param>
			/// <param name="textLayout">
			/// <para>Type: <c>IDWriteTextLayout*</c></para>
			/// <para>
			/// The formatted text to draw. Any drawing effects that do not inherit from ID2D1Resource are ignored. If there are drawing
			/// effects that inherit from <c>ID2D1Resource</c> that are not brushes, this method fails and the render target is put in an
			/// error state.
			/// </para>
			/// </param>
			/// <param name="defaultFillBrush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>
			/// The brush used to paint any text in textLayout that does not already have a brush associated with it as a drawing effect
			/// (specified by the IDWriteTextLayout::SetDrawingEffect method).
			/// </para>
			/// </param>
			/// <param name="options">
			/// <para>Type: <c>D2D1_DRAW_TEXT_OPTIONS</c></para>
			/// <para>
			/// A value that indicates whether the text should be snapped to pixel boundaries and whether the text should be clipped to the
			/// layout rectangle. The default value is D2D1_DRAW_TEXT_OPTIONS_NONE, which indicates that text should be snapped to pixel
			/// boundaries and it should not be clipped to the layout rectangle.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// When drawing the same text repeatedly, using the <c>DrawTextLayout</c> method is more efficient than using the DrawText
			/// method because the text doesn't need to be formatted and the layout processed with each call.
			/// </para>
			/// <para>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as
			/// <c>DrawTextLayout</c>) failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-drawtextlayout void DrawTextLayout(
			// D2D1_POINT_2F origin, IDWriteTextLayout *textLayout, ID2D1Brush *defaultFillBrush, D2D1_DRAW_TEXT_OPTIONS options );
			[PreserveSig]
			new void DrawTextLayout(D2D_POINT_2F origin, [In] IDWriteTextLayout textLayout, [In] ID2D1Brush defaultFillBrush,
				D2D1_DRAW_TEXT_OPTIONS options = D2D1_DRAW_TEXT_OPTIONS.D2D1_DRAW_TEXT_OPTIONS_NONE);

			/// <summary>Draws the specified glyphs.</summary>
			/// <param name="baselineOrigin">
			/// <para>Type: <c>D2D1_POINT_2F</c></para>
			/// <para>The origin, in device-independent pixels, of the glyphs' baseline.</para>
			/// </param>
			/// <param name="glyphRun">
			/// <para>Type: <c>const DWRITE_GLYPH_RUN*</c></para>
			/// <para>The glyphs to render.</para>
			/// </param>
			/// <param name="foregroundBrush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>The brush used to paint the specified glyphs.</para>
			/// </param>
			/// <param name="measuringMode">
			/// <para>Type: <c>DWRITE_MEASURING_MODE</c></para>
			/// <para>A value that indicates how glyph metrics are used to measure text when it is formatted. The default value is DWRITE_MEASURING_MODE_NATURAL.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as <c>DrawGlyphRun</c>)
			/// failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-drawglyphrun void DrawGlyphRun(
			// D2D1_POINT_2F baselineOrigin, const DWRITE_GLYPH_RUN *glyphRun, ID2D1Brush *foregroundBrush, DWRITE_MEASURING_MODE
			// measuringMode );
			[PreserveSig]
			new void DrawGlyphRun(D2D_POINT_2F baselineOrigin, in DWRITE_GLYPH_RUN glyphRun, [In] ID2D1Brush foregroundBrush,
				DWRITE_MEASURING_MODE measuringMode = DWRITE_MEASURING_MODE.DWRITE_MEASURING_MODE_NATURAL);

			/// <summary>
			/// Applies the specified transform to the render target, replacing the existing transformation. All subsequent drawing
			/// operations occur in the transformed space.
			/// </summary>
			/// <param name="transform">
			/// <para>Type: <c>const D2D1_MATRIX_3X2_F</c></para>
			/// <para>The transform to apply to the render target.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-settransform(constd2d1_matrix_3x2_f_) void
			// SetTransform( const D2D1_MATRIX_3X2_F &amp; transform );
			[PreserveSig]
			new void SetTransform(in D2D_MATRIX_3X2_F transform);

			/// <summary>Gets the current transform of the render target.</summary>
			/// <param name="transform">
			/// <para>Type: <c>D2D1_MATRIX_3X2_F*</c></para>
			/// <para>When this returns, contains the current transform of the render target. This parameter is passed uninitialized.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-gettransform void GetTransform(
			// D2D1_MATRIX_3X2_F *transform );
			[PreserveSig]
			new void GetTransform(out D2D_MATRIX_3X2_F transform);

			/// <summary>
			/// Sets the antialiasing mode of the render target. The antialiasing mode applies to all subsequent drawing operations,
			/// excluding text and glyph drawing operations.
			/// </summary>
			/// <param name="antialiasMode">
			/// <para>Type: <c>D2D1_ANTIALIAS_MODE</c></para>
			/// <para>The antialiasing mode for future drawing operations.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>To specify the antialiasing mode for text and glyph operations, use the SetTextAntialiasMode method.</remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-setantialiasmode void SetAntialiasMode(
			// D2D1_ANTIALIAS_MODE antialiasMode );
			[PreserveSig]
			new void SetAntialiasMode(D2D1_ANTIALIAS_MODE antialiasMode);

			/// <summary>Retrieves the current antialiasing mode for nontext drawing operations.</summary>
			/// <returns>
			/// <para>Type: <c>D2D1_ANTIALIAS_MODE</c></para>
			/// <para>The current antialiasing mode for nontext drawing operations.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-getantialiasmode D2D1_ANTIALIAS_MODE GetAntialiasMode();
			[PreserveSig]
			new D2D1_ANTIALIAS_MODE GetAntialiasMode();

			/// <summary>Specifies the antialiasing mode to use for subsequent text and glyph drawing operations.</summary>
			/// <param name="textAntialiasMode">
			/// <para>Type: <c>D2D1_TEXT_ANTIALIAS_MODE</c></para>
			/// <para>The antialiasing mode to use for subsequent text and glyph drawing operations.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-settextantialiasmode void
			// SetTextAntialiasMode( D2D1_TEXT_ANTIALIAS_MODE textAntialiasMode );
			[PreserveSig]
			new void SetTextAntialiasMode(D2D1_TEXT_ANTIALIAS_MODE textAntialiasMode);

			/// <summary>Gets the current antialiasing mode for text and glyph drawing operations.</summary>
			/// <returns>
			/// <para>Type: <c>D2D1_TEXT_ANTIALIAS_MODE</c></para>
			/// <para>The current antialiasing mode for text and glyph drawing operations.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-gettextantialiasmode
			// D2D1_TEXT_ANTIALIAS_MODE GetTextAntialiasMode();
			[PreserveSig]
			new D2D1_TEXT_ANTIALIAS_MODE GetTextAntialiasMode();

			/// <summary>Specifies text rendering options to be applied to all subsequent text and glyph drawing operations.</summary>
			/// <param name="textRenderingParams">
			/// <para>Type: <c>IDWriteRenderingParams*</c></para>
			/// <para>
			/// The text rendering options to be applied to all subsequent text and glyph drawing operations; <c>NULL</c> to clear current
			/// text rendering options.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// If the settings specified by textRenderingParams are incompatible with the render target's text antialiasing mode (specified
			/// by SetTextAntialiasMode), subsequent text and glyph drawing operations will fail and put the render target into an error state.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-settextrenderingparams void
			// SetTextRenderingParams( IDWriteRenderingParams *textRenderingParams );
			[PreserveSig]
			new void SetTextRenderingParams([In, Optional] IDWriteRenderingParams textRenderingParams);

			/// <summary>Retrieves the render target's current text rendering options.</summary>
			/// <param name="textRenderingParams">
			/// <para>Type: <c>IDWriteRenderingParams**</c></para>
			/// <para>
			/// When this method returns, textRenderingParamscontains the address of a pointer to the render target's current text rendering options.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// If the settings specified by textRenderingParams are incompatible with the render target's text antialiasing mode (specified
			/// by SetTextAntialiasMode), subsequent text and glyph drawing operations will fail and put the render target into an error state.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-gettextrenderingparams void
			// GetTextRenderingParams( IDWriteRenderingParams **textRenderingParams );
			[PreserveSig]
			new void GetTextRenderingParams(out IDWriteRenderingParams textRenderingParams);

			/// <summary>Specifies a label for subsequent drawing operations.</summary>
			/// <param name="tag1">
			/// <para>Type: <c>ulong</c></para>
			/// <para>A label to apply to subsequent drawing operations.</para>
			/// </param>
			/// <param name="tag2">
			/// <para>Type: <c>ulong</c></para>
			/// <para>A label to apply to subsequent drawing operations.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// The labels specified by this method are printed by debug error messages. If no tag is set, the default value for each tag is 0.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-settags void SetTags( ulong tag1, ulong
			// tag2 );
			[PreserveSig]
			new void SetTags(ulong tag1, ulong tag2);

			/// <summary>Gets the label for subsequent drawing operations.</summary>
			/// <param name="tag1">
			/// <para>Type: <c>D2D1_TAG*</c></para>
			/// <para>
			/// When this method returns, contains the first label for subsequent drawing operations. This parameter is passed
			/// uninitialized. If <c>NULL</c> is specified, no value is retrieved for this parameter.
			/// </para>
			/// </param>
			/// <param name="tag2">
			/// <para>Type: <c>D2D1_TAG*</c></para>
			/// <para>
			/// When this method returns, contains the second label for subsequent drawing operations. This parameter is passed
			/// uninitialized. If <c>NULL</c> is specified, no value is retrieved for this parameter.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>If the same address is passed for both parameters, both parameters receive the value of the second tag.</remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-gettags void GetTags( D2D1_TAG *tag1,
			// D2D1_TAG *tag2 );
			[PreserveSig]
			new void GetTags(out ulong tag1, out ulong tag2);

			/// <summary>
			/// Adds the specified layer to the render target so that it receives all subsequent drawing operations until PopLayer is called.
			/// </summary>
			/// <param name="layerParameters">
			/// <para>Type: <c>const D2D1_LAYER_PARAMETERS</c></para>
			/// <para>The content bounds, geometric mask, opacity, opacity mask, and antialiasing options for the layer.</para>
			/// </param>
			/// <param name="layer">
			/// <para>Type: <c>ID2D1Layer*</c></para>
			/// <para>The layer that receives subsequent drawing operations.</para>
			/// <para>
			/// <c>Note</c> Starting with Windows 8, this parameter is optional. If a layer is not specified, Direct2D manages the layer
			/// resource automatically.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// The <c>PushLayer</c> method allows a caller to begin redirecting rendering to a layer. All rendering operations are valid in
			/// a layer. The location of the layer is affected by the world transform set on the render target.
			/// </para>
			/// <para>
			/// Each PushLayer must have a matching PopLayer call. If there are more <c>PopLayer</c> calls than <c>PushLayer</c> calls, the
			/// render target is placed into an error state. If Flush is called before all outstanding layers are popped, the render target
			/// is placed into an error state, and an error is returned. The error state can be cleared by a call to EndDraw.
			/// </para>
			/// <para>
			/// A particular ID2D1Layer resource can be active only at one time. In other words, you cannot call a <c>PushLayer</c> method,
			/// and then immediately follow with another <c>PushLayer</c> method with the same layer resource. Instead, you must call the
			/// second <c>PushLayer</c> method with different layer resources.
			/// </para>
			/// <para>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as PushLayer) failed,
			/// check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-pushlayer(constd2d1_layer_parameters__id2d1layer)
			// void PushLayer( const D2D1_LAYER_PARAMETERS &amp; layerParameters, ID2D1Layer *layer );
			[PreserveSig]
			new void PushLayer(in D2D1_LAYER_PARAMETERS layerParameters, [In, Optional] ID2D1Layer layer);

			/// <summary>Stops redirecting drawing operations to the layer that is specified by the last PushLayer call.</summary>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>A <c>PopLayer</c> must match a previous PushLayer call.</para>
			/// <para>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as <c>PopLayer</c>)
			/// failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-poplayer void PopLayer();
			[PreserveSig]
			new void PopLayer();

			/// <summary>Executes all pending drawing commands.</summary>
			/// <param name="tag1">
			/// <para>Type: <c>D2D1_TAG*</c></para>
			/// <para>
			/// When this method returns, contains the tag for drawing operations that caused errors or 0 if there were no errors. This
			/// parameter is passed uninitialized.
			/// </para>
			/// </param>
			/// <param name="tag2">
			/// <para>Type: <c>D2D1_TAG*</c></para>
			/// <para>
			/// When this method returns, contains the tag for drawing operations that caused errors or 0 if there were no errors. This
			/// parameter is passed uninitialized.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>HRESULT</c></para>
			/// <para>
			/// If the method succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code and sets tag1 and tag2 to
			/// the tags that were active when the error occurred. If no error occurred, this method sets the error tag state to be (0,0).
			/// </para>
			/// </returns>
			/// <remarks>
			/// <para>This command does not flush the Direct3D device context that is associated with the render target.</para>
			/// <para>Calling this method resets the error state of the render target.</para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-flush HRESULT Flush( D2D1_TAG *tag1,
			// D2D1_TAG *tag2 );
			new void Flush(out ulong tag1, out ulong tag2);

			/// <summary>Saves the current drawing state to the specified ID2D1DrawingStateBlock.</summary>
			/// <param name="drawingStateBlock">
			/// <para>Type: <c>ID2D1DrawingStateBlock*</c></para>
			/// <para>
			/// When this method returns, contains the current drawing state of the render target. This parameter must be initialized before
			/// passing it to the method.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-savedrawingstate void SaveDrawingState(
			// ID2D1DrawingStateBlock *drawingStateBlock );
			[PreserveSig]
			new void SaveDrawingState([In, Out] ID2D1DrawingStateBlock drawingStateBlock);

			/// <summary>Sets the render target's drawing state to that of the specified ID2D1DrawingStateBlock.</summary>
			/// <param name="drawingStateBlock">
			/// <para>Type: <c>ID2D1DrawingStateBlock*</c></para>
			/// <para>The new drawing state of the render target.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-restoredrawingstate void
			// RestoreDrawingState( ID2D1DrawingStateBlock *drawingStateBlock );
			[PreserveSig]
			new void RestoreDrawingState([In] ID2D1DrawingStateBlock drawingStateBlock);

			/// <summary>Specifies a rectangle to which all subsequent drawing operations are clipped.</summary>
			/// <param name="clipRect">
			/// <para>Type: [in] <c>const D2D1_RECT_F &amp;</c></para>
			/// <para>The size and position of the clipping area, in device-independent pixels.</para>
			/// </param>
			/// <param name="antialiasMode">
			/// <para>Type: [in] <c>D2D1_ANTIALIAS_MODE</c></para>
			/// <para>
			/// The antialiasing mode that is used to draw the edges of clip rects that have subpixel boundaries, and to blend the clip with
			/// the scene contents. The blending is performed once when the PopAxisAlignedClip method is called, and does not apply to each
			/// primitive within the layer.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// The clipRect is transformed by the current world transform set on the render target. After the transform is applied to the
			/// clipRect that is passed in, the axis-aligned bounding box for the clipRect is computed. For efficiency, the contents are
			/// clipped to this axis-aligned bounding box and not to the original clipRect that is passed in.
			/// </para>
			/// <para>
			/// The following diagrams show how a rotation transform is applied to the render target, the resulting clipRect, and a
			/// calculated axis-aligned bounding box.
			/// </para>
			/// <list type="number">
			/// <item>
			/// <term>Assume the rectangle in the following illustration is a render target that is aligned to the screen pixels.</term>
			/// </item>
			/// <item>
			/// <term>
			/// Apply a rotation transform to the render target. In the following illustration, the black rectangle represents the original
			/// render target and the red dashed rectangle represents the transformed render target.
			/// </term>
			/// </item>
			/// <item>
			/// <term>
			/// After calling <c>PushAxisAlignedClip</c>, the rotation transform is applied to the clipRect. In the following illustration,
			/// the blue rectangle represents the transformed clipRect.
			/// </term>
			/// </item>
			/// <item>
			/// <term>
			/// The axis-aligned bounding box is calculated. The green dashed rectangle represents the bounding box in the following
			/// illustration. All contents are clipped to this axis-aligned bounding box.
			/// </term>
			/// </item>
			/// </list>
			/// <para>
			/// <c>Note</c> If rendering operations fail or if PopAxisAlignedClip is not called, clip rects may cause some artifacts on the
			/// render target. <c>PopAxisAlignedClip</c> can be considered a drawing operation that is designed to fix the borders of a
			/// clipping region. Without this call, the borders of a clipped area may be not antialiased or otherwise corrected.
			/// </para>
			/// <para>
			/// The <c>PushAxisAlignedClip</c> and PopAxisAlignedClip must match. Otherwise, the error state is set. For the render target
			/// to continue receiving new commands, you can call Flush to clear the error.
			/// </para>
			/// <para>
			/// A <c>PushAxisAlignedClip</c> and PopAxisAlignedClip pair can occur around or within a PushLayer and PopLayer, but cannot
			/// overlap. For example, the sequence of <c>PushAxisAlignedClip</c>, PushLayer, PopLayer, <c>PopAxisAlignedClip</c> is valid,
			/// but the sequence of <c>PushAxisAlignedClip</c>, <c>PushLayer</c>, <c>PopAxisAlignedClip</c>, <c>PopLayer</c> is invalid.
			/// </para>
			/// <para>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as PushAxisAlignedClip)
			/// failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-pushaxisalignedclip(constd2d1_rect_f__d2d1_antialias_mode)
			// void PushAxisAlignedClip( const D2D1_RECT_F &amp; clipRect, D2D1_ANTIALIAS_MODE antialiasMode );
			[PreserveSig]
			new void PushAxisAlignedClip(in D2D_RECT_F clipRect, D2D1_ANTIALIAS_MODE antialiasMode);

			/// <summary>
			/// Removes the last axis-aligned clip from the render target. After this method is called, the clip is no longer applied to
			/// subsequent drawing operations.
			/// </summary>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// A PushAxisAlignedClip/ <c>PopAxisAlignedClip</c> pair can occur around or within a PushLayer/PopLayer pair, but may not
			/// overlap. For example, a <c>PushAxisAlignedClip</c>, <c>PushLayer</c>, <c>PopLayer</c>, <c>PopAxisAlignedClip</c> sequence is
			/// valid, but a <c>PushAxisAlignedClip</c>, <c>PushLayer</c>, <c>PopAxisAlignedClip</c>, <c>PopLayer</c> sequence is not.
			/// </para>
			/// <para><c>PopAxisAlignedClip</c> must be called once for every call to PushAxisAlignedClip.</para>
			/// <para>For an example, see How to Clip with an Axis-Aligned Clip Rectangle.</para>
			/// <para>
			/// This method doesn't return an error code if it fails. To determine whether a drawing operation (such as
			/// <c>PopAxisAlignedClip</c>) failed, check the result returned by the ID2D1RenderTarget::EndDraw or ID2D1RenderTarget::Flush methods.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-popaxisalignedclip void PopAxisAlignedClip();
			[PreserveSig]
			new void PopAxisAlignedClip();

			/// <summary>Clears the drawing area to the specified color.</summary>
			/// <param name="clearColor">
			/// <para>Type: [in] <c>const D2D1_COLOR_F &amp;</c></para>
			/// <para>The color to which the drawing area is cleared.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// Direct2D interprets the clearColor as straight alpha (not premultiplied). If the render target's alpha mode is
			/// D2D1_ALPHA_MODE_IGNORE, the alpha channel of clearColor is ignored and replaced with 1.0f (fully opaque).
			/// </para>
			/// <para>
			/// If the render target has an active clip (specified by PushAxisAlignedClip), the clear command is applied only to the area
			/// within the clip region.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-clear(constd2d1_color_f_) void Clear( const
			// D2D1_COLOR_F &amp; clearColor );
			[PreserveSig]
			new void Clear([In, Optional] IntPtr clearColor);

			/// <summary>Initiates drawing on this render target.</summary>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>Drawing operations can only be issued between a <c>BeginDraw</c> and EndDraw call.</para>
			/// <para>
			/// BeginDraw and EndDraw are used to indicate that a render target is in use by the Direct2D system. Different implementations
			/// of ID2D1RenderTarget might behave differently when <c>BeginDraw</c> is called. An ID2D1BitmapRenderTarget may be locked
			/// between <c>BeginDraw</c>/EndDraw calls, a DXGI surface render target might be acquired on <c>BeginDraw</c> and released on
			/// <c>EndDraw</c>, while an ID2D1HwndRenderTarget may begin batching at <c>BeginDraw</c> and may present on <c>EndDraw</c>, for example.
			/// </para>
			/// <para>
			/// The BeginDraw method must be called before rendering operations can be called, though state-setting and state-retrieval
			/// operations can be performed even outside of <c>BeginDraw</c>/EndDraw.
			/// </para>
			/// <para>
			/// After <c>BeginDraw</c> is called, a render target will normally build up a batch of rendering commands, but defer processing
			/// of these commands until either an internal buffer is full, the Flush method is called, or until EndDraw is called. The
			/// <c>EndDraw</c> method causes any batched drawing operations to complete, and then returns an HRESULT indicating the success
			/// of the operations and, optionally, the tag state of the render target at the time the error occurred. The <c>EndDraw</c>
			/// method always succeeds: it should not be called twice even if a previous <c>EndDraw</c> resulted in a failing HRESULT.
			/// </para>
			/// <para>
			/// If EndDraw is called without a matched call to <c>BeginDraw</c>, it returns an error indicating that <c>BeginDraw</c> must
			/// be called before <c>EndDraw</c>.
			/// </para>
			/// <para>
			/// Calling <c>BeginDraw</c> twice on a render target puts the target into an error state where nothing further is drawn, and
			/// returns an appropriate HRESULT and error information when <c>EndDraw</c> is called.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-begindraw void BeginDraw();
			[PreserveSig]
			new void BeginDraw();

			/// <summary>Ends drawing operations on the render target and indicates the current error state and associated tags.</summary>
			/// <param name="tag1">
			/// <para>Type: <c>D2D1_TAG*</c></para>
			/// <para>
			/// When this method returns, contains the tag for drawing operations that caused errors or 0 if there were no errors. This
			/// parameter is passed uninitialized.
			/// </para>
			/// </param>
			/// <param name="tag2">
			/// <para>Type: <c>D2D1_TAG*</c></para>
			/// <para>
			/// When this method returns, contains the tag for drawing operations that caused errors or 0 if there were no errors. This
			/// parameter is passed uninitialized.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>HRESULT</c></para>
			/// <para>
			/// If the method succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code and sets tag1 and tag2 to
			/// the tags that were active when the error occurred.
			/// </para>
			/// </returns>
			/// <remarks>
			/// <para>Drawing operations can only be issued between a BeginDraw and <c>EndDraw</c> call.</para>
			/// <para>
			/// BeginDraw and <c>EndDraw</c> are use to indicate that a render target is in use by the Direct2D system. Different
			/// implementations of ID2D1RenderTarget might behave differently when <c>BeginDraw</c> is called. An ID2D1BitmapRenderTarget
			/// may be locked between <c>BeginDraw</c>/ <c>EndDraw</c> calls, a DXGI surface render target might be acquired on
			/// <c>BeginDraw</c> and released on <c>EndDraw</c>, while an ID2D1HwndRenderTarget may begin batching at <c>BeginDraw</c> and
			/// may present on <c>EndDraw</c>, for example.
			/// </para>
			/// <para>
			/// The BeginDraw method must be called before rendering operations can be called, though state-setting and state-retrieval
			/// operations can be performed even outside of <c>BeginDraw</c>/ <c>EndDraw</c>.
			/// </para>
			/// <para>
			/// After BeginDraw is called, a render target will normally build up a batch of rendering commands, but defer processing of
			/// these commands until either an internal buffer is full, the Flush method is called, or until <c>EndDraw</c> is called. The
			/// <c>EndDraw</c> method causes any batched drawing operations to complete, and then returns an <c>HRESULT</c> indicating the
			/// success of the operations and, optionally, the tag state of the render target at the time the error occurred. The
			/// <c>EndDraw</c> method always succeeds: it should not be called twice even if a previous <c>EndDraw</c> resulted in a failing <c>HRESULT</c>.
			/// </para>
			/// <para>
			/// If <c>EndDraw</c> is called without a matched call to BeginDraw, it returns an error indicating that <c>BeginDraw</c> must
			/// be called before <c>EndDraw</c>.
			/// </para>
			/// <para>
			/// Calling <c>BeginDraw</c> twice on a render target puts the target into an error state where nothing further is drawn, and
			/// returns an appropriate <c>HRESULT</c> and error information when <c>EndDraw</c> is called.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-enddraw HRESULT EndDraw( D2D1_TAG *tag1,
			// D2D1_TAG *tag2 );
			new void EndDraw(out ulong tag1, out ulong tag2);

			/// <summary>Retrieves the pixel format and alpha mode of the render target.</summary>
			/// <returns>
			/// <para>Type: <c>D2D1_PIXEL_FORMAT</c></para>
			/// <para>The pixel format and alpha mode of the render target.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-getpixelformat D2D1_PIXEL_FORMAT GetPixelFormat();
			[PreserveSig]
			new D2D1_PIXEL_FORMAT GetPixelFormat();

			/// <summary>Sets the dots per inch (DPI) of the render target.</summary>
			/// <param name="dpiX">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>A value greater than or equal to zero that specifies the horizontal DPI of the render target.</para>
			/// </param>
			/// <param name="dpiY">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>A value greater than or equal to zero that specifies the vertical DPI of the render target.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// This method specifies the mapping from pixel space to device-independent space for the render target. If both dpiX and dpiY
			/// are 0, the factory-read system DPI is chosen. If one parameter is zero and the other unspecified, the DPI is not changed.
			/// </para>
			/// <para>
			/// For ID2D1HwndRenderTarget, the DPI defaults to the most recently factory-read system DPI. The default value for all other
			/// render targets is 96 DPI.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-setdpi void SetDpi( FLOAT dpiX, FLOAT dpiY );
			[PreserveSig]
			new void SetDpi(float dpiX, float dpiY);

			/// <summary>Return the render target's dots per inch (DPI).</summary>
			/// <param name="dpiX">
			/// <para>Type: <c>FLOAT*</c></para>
			/// <para>When this method returns, contains the horizontal DPI of the render target. This parameter is passed uninitialized.</para>
			/// </param>
			/// <param name="dpiY">
			/// <para>Type: <c>FLOAT*</c></para>
			/// <para>When this method returns, contains the vertical DPI of the render target. This parameter is passed uninitialized.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>This method indicates the mapping from pixel space to device-independent space for the render target.</para>
			/// <para>
			/// For ID2D1HwndRenderTarget, the DPI defaults to the most recently factory-read system DPI. The default value for all other
			/// render targets is 96 DPI.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-getdpi void GetDpi( FLOAT *dpiX, FLOAT
			// *dpiY );
			[PreserveSig]
			new void GetDpi(out float dpiX, out float dpiY);

			/// <summary>Returns the size of the render target in device-independent pixels.</summary>
			/// <returns>
			/// <para>Type: <c>D2D1_SIZE_F</c></para>
			/// <para>The current size of the render target in device-independent pixels.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-getsize D2D1_SIZE_F GetSize();
			[PreserveSig]
			new D2D_SIZE_F GetSize();

			/// <summary>Returns the size of the render target in device pixels.</summary>
			/// <returns>
			/// <para>Type: <c>D2D1_SIZE_U</c></para>
			/// <para>The size of the render target in device pixels.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-getpixelsize D2D1_SIZE_U GetPixelSize();
			[PreserveSig]
			new D2D_SIZE_U GetPixelSize();

			/// <summary>
			/// Gets the maximum size, in device-dependent units (pixels), of any one bitmap dimension supported by the render target.
			/// </summary>
			/// <returns>
			/// <para>Type: <c>UINT32</c></para>
			/// <para>The maximum size, in pixels, of any one bitmap dimension supported by the render target.</para>
			/// </returns>
			/// <remarks>
			/// <para>This method returns the maximum texture size of the Direct3D device.</para>
			/// <para>
			/// <c>Note</c> The software renderer and WARP devices return the value of 16 megapixels (16*1024*1024). You can create a
			/// Direct2D texture that is this size, but not a Direct3D texture that is this size.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-getmaximumbitmapsize UINT32 GetMaximumBitmapSize();
			[PreserveSig]
			new uint GetMaximumBitmapSize();

			/// <summary>Indicates whether the render target supports the specified properties.</summary>
			/// <param name="renderTargetProperties">
			/// <para>Type: <c>const D2D1_RENDER_TARGET_PROPERTIES*</c></para>
			/// <para>The render target properties to test.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>BOOL</c></para>
			/// <para><c>TRUE</c> if the specified render target properties are supported by this render target; otherwise, <c>FALSE</c>.</para>
			/// </returns>
			/// <remarks>This method does not evaluate the DPI settings specified by the renderTargetProperties parameter.</remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1rendertarget-issupported(constd2d1_render_target_properties_)
			// BOOL IsSupported( const D2D1_RENDER_TARGET_PROPERTIES &amp; renderTargetProperties );
			[PreserveSig]
			[return: MarshalAs(UnmanagedType.Bool)]
			new bool IsSupported(in D2D1_RENDER_TARGET_PROPERTIES renderTargetProperties);

			/// <summary>
			/// Creates a bitmap that can be used as a target surface, for reading back to the CPU, or as a source for the DrawBitmap and
			/// ID2D1BitmapBrush APIs. In addition, color context information can be passed to the bitmap.
			/// </summary>
			/// <param name="size">
			/// <para>Type: <c>D2D1_SIZE_U</c></para>
			/// <para>The pixel size of the bitmap to be created.</para>
			/// </param>
			/// <param name="sourceData">
			/// <para>Type: <c>const void*</c></para>
			/// <para>The initial data that will be loaded into the bitmap.</para>
			/// </param>
			/// <param name="pitch">
			/// <para>Type: <c>UINT32</c></para>
			/// <para>The pitch of the source data, if specified.</para>
			/// </param>
			/// <param name="bitmapProperties">
			/// <para>Type: <c>const D2D1_BITMAP_PROPERTIES1</c></para>
			/// <para>The properties of the bitmap to be created.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1Bitmap1**</c></para>
			/// <para>When this method returns, contains the address of a pointer to a new bitmap object.</para>
			/// </returns>
			/// <remarks>The new bitmap can be used as a target for SetTarget if it is created with D2D1_BITMAP_OPTIONS_TARGET.</remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createbitmap(d2d1_size_u_constvoid_uint32_constd2d1_bitmap_properties1_id2d1bitmap1)
			// HRESULT CreateBitmap( D2D1_SIZE_U size, const void *sourceData, UINT32 pitch, const D2D1_BITMAP_PROPERTIES1
			// *bitmapProperties, ID2D1Bitmap1 **bitmap );
			ID2D1Bitmap1 CreateBitmap(D2D_SIZE_U size, [In, Optional] IntPtr sourceData, uint pitch, in D2D1_BITMAP_PROPERTIES1 bitmapProperties);

			/// <summary>Creates an ID2D1Bitmap by copying the specified Microsoft Windows Imaging Component (WIC) bitmap.</summary>
			/// <param name="wicBitmapSource">
			/// <para>Type: <c>IWICBitmapSource*</c></para>
			/// <para>The WIC bitmap to copy.</para>
			/// </param>
			/// <param name="bitmapProperties">
			/// <para>Type: <c>const D2D1_BITMAP_PROPERTIES1</c></para>
			/// <para>The properties of the bitmap to be created.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1Bitmap1**</c></para>
			/// <para>When this method returns, contains a pointer to a pointer to the new bitmap. This parameter is passed uninitialized.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createbitmapfromwicbitmap(iwicbitmapsource_id2d1bitmap1)
			// HRESULT CreateBitmapFromWicBitmap( IWICBitmapSource *wicBitmapSource, ID2D1Bitmap1 **bitmap );
			ID2D1Bitmap1 CreateBitmap1FromWicBitmap(IWICBitmapSource wicBitmapSource, [In, Optional]  IntPtr bitmapProperties);

			/// <summary>Creates a color context.</summary>
			/// <param name="space">
			/// <para>Type: <c>D2D1_COLOR_SPACE</c></para>
			/// <para>The space of color context to create.</para>
			/// </param>
			/// <param name="profile">
			/// <para>Type: <c>const BYTE*</c></para>
			/// <para>
			/// A buffer containing the ICC profile bytes used to initialize the color context when space is D2D1_COLOR_SPACE_CUSTOM. For
			/// other types, the parameter is ignored and should be set to <c>NULL</c>.
			/// </para>
			/// </param>
			/// <param name="profileSize">
			/// <para>Type: <c>UINT32</c></para>
			/// <para>The size in bytes of Profile.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1ColorContext**</c></para>
			/// <para>When this method returns, contains the address of a pointer to a new color context object.</para>
			/// </returns>
			/// <remarks>
			/// <para>The new color context can be used in D2D1_BITMAP_PROPERTIES1 to initialize the color context of a created bitmap.</para>
			/// <para>
			/// When space is D2D1_COLOR_SPACE_CUSTOM, profile and profileSize must be specified. Otherwise, these parameters should be set
			/// to <c>NULL</c> and zero respectively. When the space is D2D1_COLOR_SPACE_CUSTOM, the model field of the profile header is
			/// inspected to determine if this profile is sRGB or scRGB and the color space is updated respectively. Otherwise the space
			/// remains custom.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createcolorcontext HRESULT
			// CreateColorContext( D2D1_COLOR_SPACE space, const BYTE *profile, UINT32 profileSize, ID2D1ColorContext **colorContext );
			ID2D1ColorContext CreateColorContext(D2D1_COLOR_SPACE space, [In, Optional] IntPtr profile, int profileSize);

			/// <summary>
			/// Creates a color context by loading it from the specified filename. The profile bytes are the contents of the file specified
			/// by Filename.
			/// </summary>
			/// <param name="filename">
			/// <para>Type: <c>PCWSTR</c></para>
			/// <para>The path to the file containing the profile bytes to initialize the color context with.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1ColorContext**</c></para>
			/// <para>When this method returns, contains the address of a pointer to a new color context.</para>
			/// </returns>
			/// <remarks>
			/// The new color context can be used in D2D1_BITMAP_PROPERTIES1 to initialize the color context of a created bitmap. The model
			/// field of the profile header is inspected to determine whether this profile is sRGB or scRGB and the color space is updated
			/// respectively. Otherwise the space is custom.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createcolorcontextfromfilename HRESULT
			// CreateColorContextFromFilename( PCWSTR filename, ID2D1ColorContext **colorContext );
			ID2D1ColorContext CreateColorContextFromFilename([MarshalAs(UnmanagedType.LPWStr)] string filename);

			/// <summary>
			/// Creates a color context from an IWICColorContext. The D2D1ColorContext space of the resulting context varies, see Remarks
			/// for more info.
			/// </summary>
			/// <param name="wicColorContext">
			/// <para>Type: <c>IWICColorContext*</c></para>
			/// <para>The IWICColorContext used to initialize the color context.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1ColorContext**</c></para>
			/// <para>When this method returns, contains the address of a pointer to a new color context.</para>
			/// </returns>
			/// <remarks>
			/// The new color context can be used in D2D1_BITMAP_PROPERTIES1 to initialize the color context of a created bitmap. The model
			/// field of the profile header is inspected to determine whether this profile is sRGB or scRGB and the color space is updated
			/// respectively. Otherwise the space is custom.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createcolorcontextfromwiccolorcontext
			// HRESULT CreateColorContextFromWicColorContext( IWICColorContext *wicColorContext, ID2D1ColorContext **colorContext );
			ID2D1ColorContext CreateColorContextFromWicColorContext(IWICColorContext wicColorContext);

			/// <summary>
			/// Creates a bitmap from a DXGI surface that can be set as a target surface or have additional color context information specified.
			/// </summary>
			/// <param name="surface">
			/// <para>Type: <c>IDXGISurface*</c></para>
			/// <para>The DXGI surface from which the bitmap can be created.</para>
			/// <para>
			/// <c>Note</c> The DXGI surface must have been created from the same Direct3D device that the Direct2D device context is
			/// associated with.
			/// </para>
			/// </param>
			/// <param name="bitmapProperties">
			/// <para>Type: <c>const D2D1_BITMAP_PROPERTIES1*</c></para>
			/// <para>The bitmap properties specified in addition to the surface.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1Bitmap1**</c></para>
			/// <para>When this method returns, contains the address of a pointer to a new bitmap object.</para>
			/// </returns>
			/// <remarks>
			/// <para>If the bitmap properties are not specified, the following information is assumed:</para>
			/// <list type="bullet">
			/// <item>
			/// <term>The bitmap DPI is 96.</term>
			/// </item>
			/// <item>
			/// <term>The pixel format matches that of the surface.</term>
			/// </item>
			/// <item>
			/// <term>The returned bitmap will inherit the bind flags of the DXGI surface.</term>
			/// </item>
			/// <item>
			/// <term>The color context is unknown.</term>
			/// </item>
			/// <item>
			/// <term>The alpha mode of the bitmap will be premultiplied (common case) or straight (A8).</term>
			/// </item>
			/// </list>
			/// <para>If the bitmap properties are specified, the bitmap properties will be used as follows:</para>
			/// <list type="bullet">
			/// <item>
			/// <term>The bitmap DPI will be specified by the bitmap properties.</term>
			/// </item>
			/// <item>
			/// <term>If both dpiX and dpiY are 0, the bitmap DPI will be 96.</term>
			/// </item>
			/// <item>
			/// <term>The pixel format must be compatible with the shader resource view or render target view of the surface.</term>
			/// </item>
			/// <item>
			/// <term>
			/// The bitmap options must be compatible with the bind flags of the DXGI surface. However, they may be a subset. This will
			/// influence what resource views are created by the bitmap.
			/// </term>
			/// </item>
			/// <item>
			/// <term>The color context information will be used from the bitmap properties, if specified.</term>
			/// </item>
			/// </list>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createbitmapfromdxgisurface(idxgisurface_constd2d1_bitmap_properties1__id2d1bitmap1)
			// HRESULT CreateBitmapFromDxgiSurface( IDXGISurface *surface, const D2D1_BITMAP_PROPERTIES1 &amp; bitmapProperties,
			// ID2D1Bitmap1 **bitmap );
			ID2D1Bitmap1 CreateBitmapFromDxgiSurface(IDXGISurface surface, [In, Optional] IntPtr bitmapProperties);

			/// <summary>Creates an effect for the specified class ID.</summary>
			/// <param name="effectId">
			/// <para>Type: <c>REFCLSID</c></para>
			/// <para>The class ID of the effect to create. See Built-in Effects for a list of effect IDs.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1Effect**</c></para>
			/// <para>When this method returns, contains the address of a pointer to a new effect.</para>
			/// </returns>
			/// <remarks>
			/// If the created effect is a custom effect that is implemented in a DLL, this doesn't increment the reference count for that
			/// DLL. If the application deletes an effect while that effect is loaded, the resulting behavior is unpredictable.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createeffect HRESULT CreateEffect(
			// REFCLSID effectId, ID2D1Effect **effect );
			ID2D1Effect CreateEffect(in Guid effectId);

			/// <summary>
			/// Creates a gradient stop collection, enabling the gradient to contain color channels with values outside of [0,1] and also
			/// enabling rendering to a high-color render target with interpolation in sRGB space.
			/// </summary>
			/// <param name="straightAlphaGradientStops">
			/// <para>Type: <c>const D2D1_GRADIENT_STOP*</c></para>
			/// <para>An array of color values and offsets.</para>
			/// </param>
			/// <param name="straightAlphaGradientStopsCount">
			/// <para>Type: <c>UINT</c></para>
			/// <para>The number of elements in the gradientStops array.</para>
			/// </param>
			/// <param name="preInterpolationSpace">
			/// <para>Type: <c>D2D1_COLOR_SPACE</c></para>
			/// <para>Specifies both the input color space and the space in which the color interpolation occurs.</para>
			/// </param>
			/// <param name="postInterpolationSpace">
			/// <para>Type: <c>D2D1_COLOR_SPACE</c></para>
			/// <para>The color space that colors will be converted to after interpolation occurs.</para>
			/// </param>
			/// <param name="bufferPrecision">
			/// <para>Type: <c>D2D1_BUFFER_PRECISION</c></para>
			/// <para>The precision of the texture used to hold interpolated values.</para>
			/// <para>
			/// <c>Note</c> This method will fail if the underlying Direct3D device does not support the requested buffer precision. Use
			/// ID2D1DeviceContext::IsBufferPrecisionSupported to determine what is supported.
			/// </para>
			/// </param>
			/// <param name="extendMode">
			/// <para>Type: <c>D2D1_EXTEND_MODE</c></para>
			/// <para>Defines how colors outside of the range defined by the stop collection are determined.</para>
			/// </param>
			/// <param name="colorInterpolationMode">
			/// <para>Type: <c>D2D1_COLOR_INTERPOLATION_MODE</c></para>
			/// <para>
			/// Defines how colors are interpolated. D2D1_COLOR_INTERPOLATION_MODE_PREMULTIPLIED is the default, see Remarks for more info.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1GradientStopCollection1**</c></para>
			/// <para>The new gradient stop collection.</para>
			/// </returns>
			/// <remarks>
			/// <para>
			/// This method linearly interpolates between the color stops. An optional color space conversion is applied post-interpolation.
			/// Whether and how this gamma conversion is applied is determined by the pre- and post-interpolation. This method will fail if
			/// the device context does not support the requested buffer precision.
			/// </para>
			/// <para>In order to get the desired result, you need to ensure that the inputs are specified in the correct color space.</para>
			/// <para>
			/// You must always specify colors in straight alpha, regardless of interpolation mode being premultiplied or straight. The
			/// interpolation mode only affects the interpolated values. Likewise, the stops returned by
			/// ID2D1GradientStopCollection::GetGradientStops will always have straight alpha.
			/// </para>
			/// <para>
			/// If you specify D2D1_COLOR_INTERPOLATION_MODE_PREMULTIPLIED, then all stops are premultiplied before interpolation, and then
			/// un-premultiplied before color conversion.
			/// </para>
			/// <para>Starting with Windows 8, the interpolation behavior of this method has changed.</para>
			/// <para>The table here shows the behavior in Windows 7 and earlier.</para>
			/// <list type="table">
			/// <listheader>
			/// <term>Gamma</term>
			/// <term>Before Interpolation Behavior</term>
			/// <term>After Interpolation Behavior</term>
			/// <term>GetColorInteroplationGamma (output color space)</term>
			/// </listheader>
			/// <item>
			/// <term>1.0</term>
			/// <term>Clamps the inputs and then converts from sRGB to scRGB.</term>
			/// <term>Converts from scRGB to sRGB post-interpolation.</term>
			/// <term>1.0</term>
			/// </item>
			/// <item>
			/// <term>2.2</term>
			/// <term>Clamps the inputs.</term>
			/// <term>No Operation</term>
			/// <term>2.2</term>
			/// </item>
			/// </list>
			/// <para>The table here shows the behavior in Windows 8 and later.</para>
			/// <list type="table">
			/// <listheader>
			/// <term>Gamma</term>
			/// <term>Before Interpolation Behavior</term>
			/// <term>After Interpolation Behavior</term>
			/// <term>GetColorInteroplationGamma (output color space)</term>
			/// </listheader>
			/// <item>
			/// <term>sRGB to scRGB</term>
			/// <term>No Operation</term>
			/// <term>Clamps the outputs and then converts from sRGB to scRGB.</term>
			/// <term>1.0</term>
			/// </item>
			/// <item>
			/// <term>scRGB to sRGB</term>
			/// <term>No Operation</term>
			/// <term>Clamps the outputs and then converts from sRGB to scRGB.</term>
			/// <term>2.2</term>
			/// </item>
			/// <item>
			/// <term>sRGB to sRGB</term>
			/// <term>No Operation</term>
			/// <term>No Operation</term>
			/// <term>2.2</term>
			/// </item>
			/// <item>
			/// <term>scRGB to scRGB</term>
			/// <term>No Operation</term>
			/// <term>No Operation</term>
			/// <term>1.0</term>
			/// </item>
			/// </list>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-creategradientstopcollection HRESULT
			// CreateGradientStopCollection( const D2D1_GRADIENT_STOP *straightAlphaGradientStops, UINT32 straightAlphaGradientStopsCount,
			// D2D1_COLOR_SPACE preInterpolationSpace, D2D1_COLOR_SPACE postInterpolationSpace, D2D1_BUFFER_PRECISION bufferPrecision,
			// D2D1_EXTEND_MODE extendMode, D2D1_COLOR_INTERPOLATION_MODE colorInterpolationMode, ID2D1GradientStopCollection1
			// **gradientStopCollection1 );
			ID2D1GradientStopCollection1 CreateGradientStopCollection([In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)] D2D1_GRADIENT_STOP[] straightAlphaGradientStops, uint straightAlphaGradientStopsCount,
				D2D1_COLOR_SPACE preInterpolationSpace, D2D1_COLOR_SPACE postInterpolationSpace, D2D1_BUFFER_PRECISION bufferPrecision, D2D1_EXTEND_MODE extendMode, D2D1_COLOR_INTERPOLATION_MODE colorInterpolationMode);

			/// <summary>Creates an image brush. The input image can be any type of image, including a bitmap, effect, or a command list.</summary>
			/// <param name="image">
			/// <para>Type: <c>ID2D1Image*</c></para>
			/// <para>The image to be used as a source for the image brush.</para>
			/// </param>
			/// <param name="imageBrushProperties">
			/// <para>Type: <c>const D2D1_IMAGE_BRUSH_PROPERTIES</c></para>
			/// <para>The properties specific to an image brush.</para>
			/// </param>
			/// <param name="brushProperties">
			/// <para>Type: <c>const D2D1_BRUSH_PROPERTIES</c></para>
			/// <para>Properties common to all brushes.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1ImageBrush**</c></para>
			/// <para>When this method returns, contains the address of a pointer to the input rectangles.</para>
			/// </returns>
			/// <remarks>
			/// <para>The image brush can be used to fill an arbitrary geometry, an opacity mask or text.</para>
			/// <para>This sample illustrates drawing a rectangle with an image brush.</para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createimagebrush(id2d1image_constd2d1_image_brush_properties__constd2d1_brush_properties__id2d1imagebrush)
			// HRESULT CreateImageBrush( ID2D1Image *image, const D2D1_IMAGE_BRUSH_PROPERTIES &amp; imageBrushProperties, const
			// D2D1_BRUSH_PROPERTIES &amp; brushProperties, ID2D1ImageBrush **imageBrush );
			ID2D1ImageBrush CreateImageBrush([Optional] ID2D1Image image, in D2D1_IMAGE_BRUSH_PROPERTIES imageBrushProperties, [In, Optional] IntPtr brushProperties);

			/// <summary>Creates a bitmap brush, the input image is a Direct2D bitmap object.</summary>
			/// <param name="bitmap">
			/// <para>Type: <c>ID2D1Bitmap*</c></para>
			/// <para>The bitmap to use as the brush.</para>
			/// </param>
			/// <param name="bitmapBrushProperties">
			/// <para>Type: <c>D2D1_BITMAP_BRUSH_PROPERTIES1*</c></para>
			/// <para>A bitmap brush properties structure.</para>
			/// </param>
			/// <param name="brushProperties">
			/// <para>Type: <c>D2D1_BRUSH_PROPERTIES*</c></para>
			/// <para>A brush properties structure.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1BitmapBrush1**</c></para>
			/// <para>The address of the newly created bitmap brush object.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createbitmapbrush%28id2d1bitmap_constd2d1_bitmap_brush_properties1_constd2d1_brush_properties_id2d1bitmapbrush1%29
			// HRESULT CreateBitmapBrush( ID2D1Bitmap *bitmap, const D2D1_BITMAP_BRUSH_PROPERTIES1 *bitmapBrushProperties, const
			// D2D1_BRUSH_PROPERTIES *brushProperties, ID2D1BitmapBrush1 **bitmapBrush );
			ID2D1BitmapBrush1 CreateBitmapBrush1([Optional] ID2D1Bitmap bitmap, [In, Optional] IntPtr bitmapBrushProperties, [In, Optional] IntPtr brushProperties);

			/// <summary>Creates a ID2D1CommandList object.</summary>
			/// <returns>
			/// <para>Type: <c>ID2D1CommandList**</c></para>
			/// <para>When this method returns, contains the address of a pointer to a command list.</para>
			/// </returns>
			/// <remarks>
			/// A ID2D1CommandList can store Direct2D commands to be displayed later through ID2D1DeviceContext::DrawImage or through an
			/// image brush.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-createcommandlist HRESULT
			// CreateCommandList( ID2D1CommandList **commandList );
			ID2D1CommandList CreateCommandList();

			/// <summary>
			/// Indicates whether the format is supported by the device context. The formats supported are usually determined by the
			/// underlying hardware.
			/// </summary>
			/// <param name="format">
			/// <para>Type: <c>format</c></para>
			/// <para>The DXGI format to check.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>BOOL</c></para>
			/// <para>Returns TRUE if the format is supported. Returns FALSE if the format is not supported.</para>
			/// </returns>
			/// <remarks>
			/// <para>You can use supported formats in the D2D1_PIXEL_FORMAT structure to create bitmaps and render targets.</para>
			/// <para>Direct2D doesn't support all DXGI formats, even though they may have some level of Direct3D support by the hardware.</para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-isdxgiformatsupported BOOL
			// IsDxgiFormatSupported( DXGI_FORMAT format );
			[PreserveSig]
			[return: MarshalAs(UnmanagedType.Bool)]
			bool IsDxgiFormatSupported(DXGI_FORMAT format);

			/// <summary>Indicates whether the buffer precision is supported by the underlying Direct3D device.</summary>
			/// <param name="bufferPrecision">
			/// <para>Type: <c>D2D1_BUFFER_PRECISION</c></para>
			/// <para>The buffer precision to check.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>BOOL</c></para>
			/// <para>Returns TRUE if the buffer precision is supported. Returns FALSE if the buffer precision is not supported.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-isbufferprecisionsupported BOOL
			// IsBufferPrecisionSupported( D2D1_BUFFER_PRECISION bufferPrecision );
			[PreserveSig]
			[return: MarshalAs(UnmanagedType.Bool)]
			bool IsBufferPrecisionSupported(D2D1_BUFFER_PRECISION bufferPrecision);

			/// <summary>Gets the bounds of an image without the world transform of the context applied.</summary>
			/// <param name="image">
			/// <para>Type: <c>ID2D1Image*</c></para>
			/// <para>The image whose bounds will be calculated.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>D2D1_RECT_F[1]</c></para>
			/// <para>
			/// When this method returns, contains a pointer to the bounds of the image in device independent pixels (DIPs) and in local space.
			/// </para>
			/// </returns>
			/// <remarks>
			/// <para>
			/// The image bounds don't include multiplication by the world transform. They do reflect the current DPI, unit mode, and
			/// interpolation mode of the context. To get the bounds that include the world transform, use ID2D1DeviceContext::GetImageWorldBounds.
			/// </para>
			/// <para>
			/// The returned bounds reflect which pixels would be impacted by calling DrawImage with a target offset of (0,0) and an
			/// identity world transform matrix. They do not reflect the current clip rectangle set on the device context or the extent of
			/// the context's current target image.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-getimagelocalbounds HRESULT
			// GetImageLocalBounds( ID2D1Image *image, D2D1_RECT_F *localBounds );
			D2D_RECT_F GetImageLocalBounds(ID2D1Image image);

			/// <summary>Gets the bounds of an image with the world transform of the context applied.</summary>
			/// <param name="image">
			/// <para>Type: <c>ID2D1Image*</c></para>
			/// <para>The image whose bounds will be calculated.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>D2D1_RECT_F[1]</c></para>
			/// <para>When this method returns, contains a pointer to the bounds of the image in device independent pixels (DIPs).</para>
			/// </returns>
			/// <remarks>
			/// <para>
			/// The image bounds reflect the current DPI, unit mode, and world transform of the context. To get bounds which don't include
			/// the world transform, use ID2D1DeviceContext::GetImageLocalBounds.
			/// </para>
			/// <para>
			/// The returned bounds reflect which pixels would be impacted by calling DrawImage with the same image and a target offset of
			/// (0,0). They do not reflect the current clip rectangle set on the device context or the extent of the context’s current
			/// target image.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-getimageworldbounds HRESULT
			// GetImageWorldBounds( ID2D1Image *image, D2D1_RECT_F *worldBounds );
			D2D_RECT_F GetImageWorldBounds(ID2D1Image image);

			/// <summary>Gets the world-space bounds in DIPs of the glyph run using the device context DPI.</summary>
			/// <param name="baselineOrigin">
			/// <para>Type: <c>D2D1_POINT_2F</c></para>
			/// <para>The origin of the baseline for the glyph run.</para>
			/// </param>
			/// <param name="glyphRun">
			/// <para>Type: <c>const DWRITE_GLYPH_RUN*</c></para>
			/// <para>The glyph run to render.</para>
			/// </param>
			/// <param name="measuringMode">
			/// <para>Type: <c>DWRITE_MEASURING_MODE</c></para>
			/// <para>The DirectWrite measuring mode that indicates how glyph metrics are used to measure text when it is formatted.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>D2D1_RECT_F*</c></para>
			/// <para>The bounds of the glyph run in DIPs and in world space.</para>
			/// </returns>
			/// <remarks>The image bounds reflect the current DPI, unit mode, and world transform of the context.</remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-getglyphrunworldbounds HRESULT
			// GetGlyphRunWorldBounds( D2D1_POINT_2F baselineOrigin, const DWRITE_GLYPH_RUN *glyphRun, DWRITE_MEASURING_MODE measuringMode,
			// D2D1_RECT_F *bounds );
			D2D_RECT_F GetGlyphRunWorldBounds(D2D_POINT_2F baselineOrigin, in DWRITE_GLYPH_RUN glyphRun, DWRITE_MEASURING_MODE measuringMode);

			/// <summary>Gets the device associated with a device context.</summary>
			/// <param name="device">
			/// <para>Type: <c>ID2D1Device**</c></para>
			/// <para>When this method returns, contains the address of a pointer to a Direct2D device associated with this device context.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// The application can retrieve the device even if it is created from an earlier render target code-path. The application must
			/// use an ID2D1DeviceContext interface and then call <c>GetDevice</c>. Some functionality for controlling all of the resources
			/// for a set of device contexts is maintained only on an ID2D1Device object.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-getdevice void GetDevice( ID2D1Device
			// **device );
			[PreserveSig]
			void GetDevice(out ID2D1Device device);

			/// <summary>The bitmap or command list to which the Direct2D device context will now render.</summary>
			/// <param name="image">
			/// <para>Type: <c>ID2D1Image*</c></para>
			/// <para>The surface or command list to which the Direct2D device context will render.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>The target can be changed at any time, including while the context is drawing.</para>
			/// <para>
			/// The target can be either a bitmap created with the D2D1_BITMAP_OPTIONS_TARGET flag, or it can be a command list. Other kinds
			/// of images cannot be set as a target. For example, you cannot set the output of an effect as target. If the target is not
			/// valid the context will enter the <c>D2DERR_INVALID_TARGET</c> error state.
			/// </para>
			/// <para>
			/// You cannot use <c>SetTarget</c> to render to a bitmap/command list from multiple device contexts simultaneously. An image is
			/// considered “being rendered to” if it has ever been set on a device context within a BeginDraw/EndDraw timespan. If an
			/// attempt is made to render to an image through multiple device contexts, all subsequent device contexts after the first will
			/// enter an error state.
			/// </para>
			/// <para>Callers wishing to attach an image to a second device context should first call EndDraw on the first device context.</para>
			/// <para>Here is an example of the correct calling order.</para>
			/// <para>Here is an example of the incorrect calling order.</para>
			/// <para>
			/// <c>Note</c> Changing the target does not change the bitmap that an HWND render target presents from, nor does it change the
			/// bitmap that a DC render target blts to/from.
			/// </para>
			/// <para>
			/// This API makes it easy for an application to use a bitmap as a source (like in DrawBitmap) and as a destination at the same
			/// time. Attempting to use a bitmap as a source on the same device context to which it is bound as a target will put the device
			/// context into the D2DERR_BITMAP_BOUND_AS_TARGET error state.
			/// </para>
			/// <para>
			/// It is acceptable to have a bitmap bound as a target bitmap on multiple render targets at once. Applications that do this
			/// must properly synchronize rendering with Flush or EndDraw.
			/// </para>
			/// <para>You can change the target at any time, including while the context is drawing.</para>
			/// <para>
			/// You can set the target to NULL, in which case drawing calls will put the device context into an error state with
			/// D2DERR_WRONG_STATE. Calling <c>SetTarget</c> with a NULL target does not restore the original target bitmap to the device context.
			/// </para>
			/// <para>
			/// If the device context has an outstanding HDC, the context will enter the <c>D2DERR_WRONG_STATE</c> error state. The target
			/// will not be changed.
			/// </para>
			/// <para>
			/// If the bitmap and the device context are not in the same resource domain, the context will enter <c>&lt;/b&gt; error state.
			/// The target will not be changed.</c>
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-settarget void SetTarget( ID2D1Image
			// *image );
			[PreserveSig]
			void SetTarget(ID2D1Image image);

			/// <summary>Gets the target currently associated with the device context.</summary>
			/// <param name="image">
			/// <para>Type: <c>ID2D1Image**</c></para>
			/// <para>When this method returns, contains the address of a pointer to the target currently associated with the device context.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>If a target is not associated with the device context, target will contain <c>NULL</c> when the methods returns.</para>
			/// <para>
			/// If the currently selected target is a bitmap rather than a command list, the application can gain access to the initial
			/// bitmaps created by using one of the following methods:
			/// </para>
			/// <list type="bullet">
			/// <item>
			/// <term>CreateHwndRenderTarget</term>
			/// </item>
			/// <item>
			/// <term>CreateDxgiSurfaceRenderTarget</term>
			/// </item>
			/// <item>
			/// <term>CreateWicBitmapRenderTarget</term>
			/// </item>
			/// <item>
			/// <term>CreateDCRenderTarget</term>
			/// </item>
			/// <item>
			/// <term>CreateCompatibleRenderTarget</term>
			/// </item>
			/// </list>
			/// <para>
			/// It is not possible for an application to destroy these bitmaps. All of these bitmaps are bindable as bitmap targets. However
			/// not all of these bitmaps can be used as bitmap sources for ID2D1RenderTarget methods.
			/// </para>
			/// <para>
			/// CreateDxgiSurfaceRenderTarget will create a bitmap that is usable as a bitmap source if the DXGI surface is bindable as a
			/// shader resource view.
			/// </para>
			/// <para>CreateCompatibleRenderTarget will always create bitmaps that are usable as a bitmap source.</para>
			/// <para>
			/// ID2D1RenderTarget::BeginDraw will copy from the HDC to the original bitmap associated with it. ID2D1RenderTarget::EndDraw
			/// will copy from the original bitmap to the HDC.
			/// </para>
			/// <para>IWICBitmap objects will be locked in the following circumstances:</para>
			/// <list type="bullet">
			/// <item>
			/// <term>BeginDraw has been called and the currently selected target bitmap is a WIC bitmap.</term>
			/// </item>
			/// <item>
			/// <term>
			/// A WIC bitmap is set as the target of a device context after BeginDraw has been called and before EndDraw has been called.
			/// </term>
			/// </item>
			/// <item>
			/// <term>Any of the ID2D1Bitmap::Copy* methods are called with a WIC bitmap as either the source or destination.</term>
			/// </item>
			/// </list>
			/// <para>IWICBitmap objects will be unlocked in the following circumstances:</para>
			/// <list type="bullet">
			/// <item>
			/// <term>EndDraw is called and the currently selected target bitmap is a WIC bitmap.</term>
			/// </item>
			/// <item>
			/// <term>A WIC bitmap is removed as the target of a device context between the calls to BeginDraw and EndDraw.</term>
			/// </item>
			/// <item>
			/// <term>Any of the ID2D1Bitmap::Copy* methods are called with a WIC bitmap as either the source or destination.</term>
			/// </item>
			/// </list>
			/// <para>Direct2D will only lock bitmaps that are not currently locked.</para>
			/// <para>
			/// Calling QueryInterface for ID2D1GdiInteropRenderTarget will always succeed. ID2D1GdiInteropRenderTarget::GetDC will return a
			/// device context corresponding to the currently bound target bitmap. GetDC will fail if the target bitmap was not created with
			/// the GDI_COMPATIBLE flag set.
			/// </para>
			/// <para>
			/// ID2D1HwndRenderTarget::Resize will return <c>DXGI_ERROR_INVALID_CALL</c> if there are any outstanding references to the
			/// original target bitmap associated with the render target.
			/// </para>
			/// <para>
			/// Although the target can be a command list, it cannot be any other type of image. It cannot be the output image of an effect.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-gettarget void GetTarget( ID2D1Image
			// **image );
			[PreserveSig]
			void GetTarget(out ID2D1Image image);

			/// <summary>Sets the rendering controls for the given device context.</summary>
			/// <param name="renderingControls">
			/// <para>Type: <c>const D2D1_RENDERING_CONTROLS*</c></para>
			/// <para>The rendering controls to be applied.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// The rendering controls allow the application to tune the precision, performance, and resource usage of rendering operations.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-setrenderingcontrols(constd2d1_rendering_controls_)
			// void SetRenderingControls( const D2D1_RENDERING_CONTROLS &amp; renderingControls );
			[PreserveSig]
			void SetRenderingControls(in D2D1_RENDERING_CONTROLS renderingControls);

			/// <summary>Gets the rendering controls that have been applied to the context.</summary>
			/// <param name="renderingControls">
			/// <para>Type: <c>D2D1_RENDERING_CONTROLS*</c></para>
			/// <para>When this method returns, contains a pointer to the rendering controls for this context.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-getrenderingcontrols void
			// GetRenderingControls( D2D1_RENDERING_CONTROLS *renderingControls );
			[PreserveSig]
			void GetRenderingControls(out D2D1_RENDERING_CONTROLS renderingControls);

			/// <summary>Changes the primitive blend mode that is used for all rendering operations in the device context.</summary>
			/// <param name="primitiveBlend">
			/// <para>Type: <c>D2D1_PRIMITIVE_BLEND</c></para>
			/// <para>The primitive blend to use.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// The primitive blend will apply to all of the primitive drawn on the context, unless this is overridden with the
			/// compositeMode parameter on the DrawImage API.
			/// </para>
			/// <para>
			/// The primitive blend applies to the interior of any primitives drawn on the context. In the case of DrawImage, this will be
			/// implied by the image rectangle, offset and world transform.
			/// </para>
			/// <para>
			/// If the primitive blend is anything other than <c>D2D1_PRIMITIVE_BLEND_SOURCE_OVER</c> then ClearType rendering will be
			/// turned off. If the application explicitly forces ClearType rendering in these modes, the drawing context will be placed in
			/// an error state. D2DERR_WRONG_STATE will be returned from either EndDraw or Flush.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-setprimitiveblend void
			// SetPrimitiveBlend( D2D1_PRIMITIVE_BLEND primitiveBlend );
			[PreserveSig]
			void SetPrimitiveBlend(D2D1_PRIMITIVE_BLEND primitiveBlend);

			/// <summary>Returns the currently set primitive blend used by the device context.</summary>
			/// <returns>
			/// <para>Type: <c>D2D1_PRIMITIVE_BLEND</c></para>
			/// <para>The current primitive blend. The default value is <c>D2D1_PRIMITIVE_BLEND_SOURCE_OVER</c>.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-getprimitiveblend D2D1_PRIMITIVE_BLEND GetPrimitiveBlend();
			[PreserveSig]
			D2D1_PRIMITIVE_BLEND GetPrimitiveBlend();

			/// <summary>Sets what units will be used to interpret values passed into the device context.</summary>
			/// <param name="unitMode">
			/// <para>Type: <c>D2D1_UNIT_MODE</c></para>
			/// <para>An enumeration defining how passed-in units will be interpreted by the device context.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// This method will affect all properties and parameters affected by SetDpi and GetDpi. This affects all coordinates, lengths,
			/// and other properties that are not explicitly defined as being in another unit. For example:
			/// </para>
			/// <list type="bullet">
			/// <item>
			/// <term>
			/// <c>SetUnitMode</c> will affect a coordinate passed into ID2D1DeviceContext::DrawLine, and the scaling of a geometry passed
			/// into ID2D1DeviceContext::FillGeometry.
			/// </term>
			/// </item>
			/// <item>
			/// <term><c>SetUnitMode</c> will not affect the value returned by ID2D1Bitmap::GetPixelSize.</term>
			/// </item>
			/// </list>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-setunitmode void SetUnitMode(
			// D2D1_UNIT_MODE unitMode );
			[PreserveSig]
			void SetUnitMode(D2D1_UNIT_MODE unitMode);

			/// <summary>Gets the mode that is being used to interpret values by the device context.</summary>
			/// <returns>
			/// <para>Type: <c>D2D1_UNIT_MODE</c></para>
			/// <para>The unit mode.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-getunitmode D2D1_UNIT_MODE GetUnitMode();
			[PreserveSig]
			D2D1_UNIT_MODE GetUnitMode();

			/// <summary>Draws a series of glyphs to the device context.</summary>
			/// <param name="baselineOrigin">
			/// <para>Type: <c>D2D1_POINT_2F</c></para>
			/// <para>Origin of first glyph in the series.</para>
			/// </param>
			/// <param name="glyphRun">
			/// <para>Type: <c>const DWRITE_GLYPH_RUN*</c></para>
			/// <para>The glyphs to render.</para>
			/// </param>
			/// <param name="glyphRunDescription">
			/// <para>Type: <c>const DWRITE_GLYPH_RUN_DESCRIPTION*</c></para>
			/// <para>Supplementary glyph series information.</para>
			/// </param>
			/// <param name="foregroundBrush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>The brush that defines the text color.</para>
			/// </param>
			/// <param name="measuringMode">
			/// <para>Type: <c>DWRITE_MEASURING_MODE</c></para>
			/// <para>The measuring mode of the glyph series, used to determine the advances and offsets. The default value is DWRITE_MEASURING_MODE_NATURAL.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// The glyphRunDescription is ignored when rendering, but can be useful for printing and serialization of rendering commands,
			/// such as to an XPS or SVG file. This extends ID2D1RenderTarget::DrawGlyphRun, which lacked the glyph run description.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-drawglyphrun void DrawGlyphRun(
			// D2D1_POINT_2F baselineOrigin, const DWRITE_GLYPH_RUN *glyphRun, const DWRITE_GLYPH_RUN_DESCRIPTION *glyphRunDescription,
			// ID2D1Brush *foregroundBrush, DWRITE_MEASURING_MODE measuringMode );
			[PreserveSig]
			void DrawGlyphRun(D2D_POINT_2F baselineOrigin, in DWRITE_GLYPH_RUN glyphRun, [In, Optional] IntPtr glyphRunDescription, ID2D1Brush foregroundBrush, DWRITE_MEASURING_MODE measuringMode);

			/// <summary>Draws an image to the device context.</summary>
			/// <param name="image">
			/// <para>Type: <c>ID2D1Image*</c></para>
			/// <para>The image to be drawn to the device context.</para>
			/// </param>
			/// <param name="targetOffset">
			/// <para>Type: <c>const D2D1_POINT_2F*</c></para>
			/// <para>
			/// The offset in the destination space that the image will be rendered to. The entire logical extent of the image will be
			/// rendered to the corresponding destination. If not specified, the destination origin will be (0, 0). The top-left corner of
			/// the image will be mapped to the target offset. This will not necessarily be the origin. This default value is NULL.
			/// </para>
			/// </param>
			/// <param name="imageRectangle">
			/// <para>Type: <c>const D2D1_RECT_F*</c></para>
			/// <para>
			/// The corresponding rectangle in the image space will be mapped to the given origins when processing the image. This default
			/// value is NULL.
			/// </para>
			/// </param>
			/// <param name="interpolationMode">
			/// <para>Type: <c>D2D1_INTERPOLATION_MODE</c></para>
			/// <para>The interpolation mode that will be used to scale the image if necessary.</para>
			/// </param>
			/// <param name="compositeMode">
			/// <para>Type: <c>D2D1_COMPOSITE_MODE</c></para>
			/// <para>The composite mode that will be applied to the limits of the currently selected clip. The default value is <c>D2D1_COMPOSITE_MODE_SOURCE_OVER</c></para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// If interpolationMode is <c>D2D1_INTERPOLATION_MODE_HIGH_QUALITY</c>, different scalers will be used depending on the scale
			/// factor implied by the world transform.
			/// </para>
			/// <para>
			/// Any invalid rectangles accumulated on any effect that is drawn by this call will be discarded regardless of which portion of
			/// the image rectangle is drawn.
			/// </para>
			/// <para>
			/// If compositeMode is <c>D2D1_COMPOSITE_MODE_SOURCE_OVER</c>, DrawImage will use the currently selected primitive blend
			/// specified by ID2D1DeviceContext::SetPrimitiveBlend. If compositeMode is not <c>D2D1_COMPOSITE_MODE_SOURCE_OVER</c>, the
			/// image will be extended to transparent up to the current axis-aligned clip.
			/// </para>
			/// <para>
			/// If there is an image rectangle and a world transform, this is equivalent to inserting a clip effect to represent the image
			/// rectangle and a 2D affine transform to take into account the world transform.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-drawimage(id2d1effect_constd2d1_point_2f_constd2d1_rect_f_d2d1_interpolation_mode_d2d1_composite_mode)
			// void DrawImage( ID2D1Effect *effect, const D2D1_POINT_2F *targetOffset, const D2D1_RECT_F *imageRectangle,
			// D2D1_INTERPOLATION_MODE interpolationMode, D2D1_COMPOSITE_MODE compositeMode );
			[PreserveSig]
			void DrawImage(ID2D1Image image, [In, Optional] IntPtr targetOffset, [In, Optional] IntPtr imageRectangle, D2D1_INTERPOLATION_MODE interpolationMode, D2D1_COMPOSITE_MODE compositeMode);

			/// <summary>Draw a metafile to the device context.</summary>
			/// <param name="gdiMetafile">
			/// <para>Type: <c>ID2D1GdiMetafile*</c></para>
			/// <para>The metafile to draw.</para>
			/// </param>
			/// <param name="targetOffset">
			/// <para>Type: <c>const D2D1_POINT_2F*</c></para>
			/// <para>The offset from the upper left corner of the render target.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-drawgdimetafile(id2d1gdimetafile_d2d1_point_2f)
			// void DrawGdiMetafile( ID2D1GdiMetafile *gdiMetafile, D2D1_POINT_2F targetOffset );
			[PreserveSig]
			void DrawGdiMetafile(ID2D1GdiMetafile gdiMetafile, [In, Optional] IntPtr targetOffset);

			/// <summary>Draws a bitmap to the render target.</summary>
			/// <param name="bitmap">
			/// <para>Type: <c>ID2D1Bitmap*</c></para>
			/// <para>The bitmap to draw.</para>
			/// </param>
			/// <param name="destinationRectangle">
			/// <para>Type: <c>D2D1_RECT_F*</c></para>
			/// <para>
			/// The destination rectangle. The default is the size of the bitmap and the location is the upper left corner of the render target.
			/// </para>
			/// </param>
			/// <param name="opacity">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>The opacity of the bitmap.</para>
			/// </param>
			/// <param name="interpolationMode">
			/// <para>Type: <c>D2D1_INTERPOLATION_MODE</c></para>
			/// <para>The interpolation mode to use.</para>
			/// </param>
			/// <param name="sourceRectangle">
			/// <para>Type: <c>const D2D1_RECT_F</c></para>
			/// <para>An optional source rectangle.</para>
			/// </param>
			/// <param name="perspectiveTransform">
			/// <para>Type: <c>const D2D1_MATRIX_4X4_F</c></para>
			/// <para>An optional perspective transform.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// <para>
			/// The destinationRectangle parameter defines the rectangle in the target where the bitmap will appear (in device-independent
			/// pixels (DIPs)). This is affected by the currently set transform and the perspective transform, if set. If NULL is specified,
			/// then the destination rectangle is (left=0, top=0, right = width(sourceRectangle), bottom = height(sourceRectangle)).
			/// </para>
			/// <para>
			/// The sourceRectangle parameter defines the sub-rectangle of the source bitmap (in DIPs). <c>DrawBitmap</c> will clip this
			/// rectangle to the size of the source bitmap, thus making it impossible to sample outside of the bitmap. If NULL is specified,
			/// then the source rectangle is taken to be the size of the source bitmap.
			/// </para>
			/// <para>If you specify perspectiveTransform it is applied to the rect in addition to the transform set on the render target.</para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-drawbitmap(id2d1bitmap_constd2d1_rect_f__float_d2d1_interpolation_mode_constd2d1_rect_f_constd2d1_matrix_4x4_f)
			// void DrawBitmap( ID2D1Bitmap *bitmap, const D2D1_RECT_F &amp; destinationRectangle, FLOAT opacity, D2D1_INTERPOLATION_MODE
			// interpolationMode, const D2D1_RECT_F *sourceRectangle, const D2D1_MATRIX_4X4_F *perspectiveTransform );
			[PreserveSig]
			void DrawBitmap(ID2D1Bitmap bitmap, [In, Optional] IntPtr destinationRectangle, float opacity, D2D1_INTERPOLATION_MODE interpolationMode, [In, Optional] IntPtr sourceRectangle, [In, Optional] IntPtr perspectiveTransform);

			/// <summary>Push a layer onto the clip and layer stack of the device context.</summary>
			/// <param name="layerParameters">
			/// <para>Type: <c>const D2D1_LAYER_PARAMETERS1*</c></para>
			/// <para>The parameters that defines the layer.</para>
			/// </param>
			/// <param name="layer">
			/// <para>Type: <c>ID2D1Layer*</c></para>
			/// <para>The layer resource to push on the device context that receives subsequent drawing operations.</para>
			/// <para><c>Note</c> If a layer is not specified, Direct2D manages the layer resource automatically.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-pushlayer(constd2d1_layer_parameters1__id2d1layer)
			// void PushLayer( const D2D1_LAYER_PARAMETERS1 &amp; layerParameters, ID2D1Layer *layer );
			[PreserveSig]
			void PushLayer(in D2D1_LAYER_PARAMETERS1 layerParameters, [In, Optional] ID2D1Layer layer);

			/// <summary>
			/// <para>This indicates that a portion of an effect's input is invalid. This method can be called many times.</para>
			/// <para>
			/// You can use this method to propagate invalid rectangles through an effect graph. You can query Direct2D using the
			/// GetEffectInvalidRectangles method.
			/// </para>
			/// <para>
			/// <c>Note</c> Direct2D does not automatically use these invalid rectangles to reduce the region of an effect that is rendered.
			/// </para>
			/// <para>
			/// You can also use this method to invalidate caches that have accumulated while rendering effects that have the
			/// <c>D2D1_PROPERTY_CACHED</c> property set to true.
			/// </para>
			/// </summary>
			/// <param name="effect">
			/// <para>Type: <c>ID2D1Effect*</c></para>
			/// <para>The effect to invalidate.</para>
			/// </param>
			/// <param name="input">
			/// <para>Type: <c>UINT32</c></para>
			/// <para>The input index.</para>
			/// </param>
			/// <param name="inputRectangle">
			/// <para>Type: <c>const D2D1_RECT_F*</c></para>
			/// <para>The rect to invalidate.</para>
			/// </param>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-invalidateeffectinputrectangle HRESULT
			// InvalidateEffectInputRectangle( ID2D1Effect *effect, UINT32 input, const D2D1_RECT_F *inputRectangle );
			void InvalidateEffectInputRectangle(ID2D1Effect effect, uint input, in D2D_RECT_F inputRectangle);

			/// <summary>Gets the number of invalid output rectangles that have accumulated on the effect.</summary>
			/// <param name="effect">
			/// <para>Type: <c>ID2D1Effect*</c></para>
			/// <para>The effect to count the invalid rectangles on.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>UINT32*</c></para>
			/// <para>The returned rectangle count.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-geteffectinvalidrectanglecount HRESULT
			// GetEffectInvalidRectangleCount( ID2D1Effect *effect, UINT32 *rectangleCount );
			uint GetEffectInvalidRectangleCount(ID2D1Effect effect);

			/// <summary>
			/// Gets the invalid rectangles that have accumulated since the last time the effect was drawn and EndDraw was then called on
			/// the device context.
			/// </summary>
			/// <param name="effect">
			/// <para>Type: <c>ID2D1Effect*</c></para>
			/// <para>The effect to get the invalid rectangles from.</para>
			/// </param>
			/// <param name="rectangles">
			/// <para>Type: <c>D2D1_RECT_F*</c></para>
			/// <para>
			/// An array of D2D1_RECT_F structures. You must allocate this to the correct size. You can get the count of the invalid
			/// rectangles using the GetEffectInvalidRectangleCount method.
			/// </para>
			/// </param>
			/// <param name="rectanglesCount">
			/// <para>Type: <c>UINT32</c></para>
			/// <para>The number of rectangles to get.</para>
			/// </param>
			/// <remarks>
			/// <para>
			/// <c>Note</c> Direct2D does not automatically use these invalid rectangles to reduce the region of an effect that is rendered.
			/// </para>
			/// <para>
			/// You can use the InvalidateEffectInputRectangle method to specify invalidated rectangles for Direct2D to propagate through an
			/// effect graph.
			/// </para>
			/// <para>
			/// If multiple invalid rectangles are requested, the rectangles that this method returns may overlap. When this is the case,
			/// the rectangle count might be lower than the count that GetEffectInvalidRectangleCount.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-geteffectinvalidrectangles HRESULT
			// GetEffectInvalidRectangles( ID2D1Effect *effect, D2D1_RECT_F *rectangles, UINT32 rectanglesCount );
			void GetEffectInvalidRectangles(ID2D1Effect effect, [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] D2D_RECT_F[] rectangles, int rectanglesCount);

			/// <summary>Returns the input rectangles that are required to be supplied by the caller to produce the given output rectangle.</summary>
			/// <param name="renderEffect">
			/// <para>Type: <c>ID2D1Effect*</c></para>
			/// <para>The image whose output is being rendered.</para>
			/// </param>
			/// <param name="renderImageRectangle">
			/// <para>Type: <c>const D2D1_RECT_F*</c></para>
			/// <para>The portion of the output image whose inputs are being inspected.</para>
			/// </param>
			/// <param name="inputDescriptions">
			/// <para>Type: <c>const D2D1_EFFECT_INPUT_DESCRIPTION*</c></para>
			/// <para>A list of the inputs whos rectangles are being queried.</para>
			/// </param>
			/// <param name="requiredInputRects">
			/// <para>Type: <c>D2D1_RECT_F*</c></para>
			/// <para>The input rectangles returned to the caller.</para>
			/// </param>
			/// <param name="inputCount">
			/// <para>Type: <c>UINT32</c></para>
			/// <para>The number of inputs.</para>
			/// </param>
			/// <remarks>
			/// The caller should be very careful not to place a reliance on the required input rectangles returned. Small changes for
			/// correctness to an effect's behavior can result in different rectangles being returned. In addition, different kinds of
			/// optimization applied inside the render can also influence the result.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-geteffectrequiredinputrectangles
			// HRESULT GetEffectRequiredInputRectangles( ID2D1Effect *renderEffect, const D2D1_RECT_F *renderImageRectangle, const
			// D2D1_EFFECT_INPUT_DESCRIPTION *inputDescriptions, D2D1_RECT_F *requiredInputRects, UINT32 inputCount );
			void GetEffectRequiredInputRectangles(ID2D1Effect renderEffect, [In, Optional] IntPtr renderImageRectangle,
				[In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 4)] D2D1_EFFECT_INPUT_DESCRIPTION[] inputDescriptions,
				[Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 4)] D2D_RECT_F[] requiredInputRects, int inputCount);

			/// <summary>
			/// Fill using the alpha channel of the supplied opacity mask bitmap. The brush opacity will be modulated by the mask. The
			/// render target antialiasing mode must be set to aliased.
			/// </summary>
			/// <param name="opacityMask">
			/// <para>Type: <c>ID2D1Bitmap*</c></para>
			/// <para>The bitmap that acts as the opacity mask</para>
			/// </param>
			/// <param name="brush">
			/// <para>Type: <c>ID2D1Brush*</c></para>
			/// <para>The brush to use for filling the primitive.</para>
			/// </param>
			/// <param name="destinationRectangle">
			/// <para>Type: <c>const D2D1_RECT_F</c></para>
			/// <para>The destination rectangle to output to in the render target</para>
			/// </param>
			/// <param name="sourceRectangle">
			/// <para>Type: <c>const D2D1_RECT_F</c></para>
			/// <para>The source rectangle from the opacity mask bitmap.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1_1/nf-d2d1_1-id2d1devicecontext-fillopacitymask(id2d1bitmap_id2d1brush_constd2d1_rect_f__constd2d1_rect_f_)
			// void FillOpacityMask( ID2D1Bitmap *opacityMask, ID2D1Brush *brush, const D2D1_RECT_F &amp; destinationRectangle, const
			// D2D1_RECT_F &amp; sourceRectangle );
			[PreserveSig]
			void FillOpacityMask(ID2D1Bitmap opacityMask, ID2D1Brush brush, [In, Optional] IntPtr destinationRectangle, [In, Optional] IntPtr sourceRectangle);
		}

		/// <summary>Represents the drawing state of a render target: the antialiasing mode, transform, tags, and text-rendering options.</summary>
		/// <remarks>
		/// <para>Creating ID2D1DrawingStateBlock Objects</para>
		/// <para>To create an <c>ID2D1DrawingStateBlock</c>, use the ID2D1Factory::CreateDrawingStateBlock method.</para>
		/// <para>
		/// A drawing state block is a device-independent resource; you can create it once and retain it for the life of your application.
		/// For more information about resources, see the Resources Overview.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nn-d2d1-id2d1drawingstateblock
		[PInvokeData("d2d1.h", MSDNShortId = "9a3d9146-0e1b-4642-ad5d-ff1d09a93d2b")]
		[ComImport, Guid("28506e39-ebf6-46a1-bb47-fd85565ab957"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		public interface ID2D1DrawingStateBlock : ID2D1Resource
		{
			/// <summary>Retrieves the factory associated with this resource.</summary>
			/// <param name="factory">
			/// <para>Type: <c>ID2D1Factory**</c></para>
			/// <para>
			/// When this method returns, contains a pointer to a pointer to the factory that created this resource. This parameter is
			/// passed uninitialized.
			/// </para>
			/// </param>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1resource-getfactory void GetFactory( ID2D1Factory
			// **factory );
			[PreserveSig]
			new void GetFactory(out ID2D1Factory factory);

			/// <summary>Retrieves the antialiasing mode, transform, and tags portion of the drawing state.</summary>
			/// <param name="stateDescription">
			/// <para>Type: <c>D2D1_DRAWING_STATE_DESCRIPTION*</c></para>
			/// <para>
			/// When this method returns, contains the antialiasing mode, transform, and tags portion of the drawing state. You must
			/// allocate storage for this parameter.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1drawingstateblock-getdescription void GetDescription(
			// D2D1_DRAWING_STATE_DESCRIPTION *stateDescription );
			[PreserveSig]
			void GetDescription(out D2D1_DRAWING_STATE_DESCRIPTION stateDescription);

			/// <summary>Specifies the antialiasing mode, transform, and tags portion of the drawing state.</summary>
			/// <param name="stateDescription">
			/// <para>Type: <c>const D2D1_DRAWING_STATE_DESCRIPTION</c></para>
			/// <para>The antialiasing mode, transform, and tags portion of the drawing state.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1drawingstateblock-setdescription(constd2d1_drawing_state_description_)
			// void SetDescription( const D2D1_DRAWING_STATE_DESCRIPTION &amp; stateDescription );
			[PreserveSig]
			void SetDescription(in D2D1_DRAWING_STATE_DESCRIPTION stateDescription);

			/// <summary>Specifies the text-rendering configuration of the drawing state.</summary>
			/// <param name="textRenderingParams">
			/// <para>Type: <c>IDWriteRenderingParams*</c></para>
			/// <para>The text-rendering configuration of the drawing state, or NULL to use default settings.</para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1drawingstateblock-settextrenderingparams void
			// SetTextRenderingParams( IDWriteRenderingParams *textRenderingParams );
			[PreserveSig]
			void SetTextRenderingParams([In, Optional] IDWriteRenderingParams textRenderingParams);

			/// <summary>Retrieves the text-rendering configuration of the drawing state.</summary>
			/// <param name="textRenderingParams">
			/// <para>Type: <c>IDWriteRenderingParams**</c></para>
			/// <para>
			/// When this method returns, contains the address of a pointer to an IDWriteRenderingParams object that describes the
			/// text-rendering configuration of the drawing state.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1drawingstateblock-gettextrenderingparams void
			// GetTextRenderingParams( IDWriteRenderingParams **textRenderingParams );
			[PreserveSig]
			void GetTextRenderingParams(out IDWriteRenderingParams textRenderingParams);
		}

		/// <summary>Represents an ellipse.</summary>
		/// <remarks>
		/// <para>Creating ID2D1EllipseGeometry Objects</para>
		/// <para>To create an elipse geometry, use the ID2D1Factory::CreateEllipseGeometry method.</para>
		/// <para>
		/// Direct2D geometries are immutable and device-independent resources created by ID2D1Factory. In general, you should create
		/// geometries once and retain them for the life of the application, or until they need to be modified. For more information about
		/// device-independent and device-dependent resources, see the Resources Overview.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nn-d2d1-id2d1ellipsegeometry
		[PInvokeData("d2d1.h", MSDNShortId = "4ab6452c-6df8-46c0-9e0d-0cebc19d84ba")]
		[ComImport, Guid("2cd906a4-12e2-11dc-9fed-001143a055f9"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		public interface ID2D1EllipseGeometry : ID2D1Geometry
		{
			/// <summary>Retrieves the factory associated with this resource.</summary>
			/// <param name="factory">
			/// <para>Type: <c>ID2D1Factory**</c></para>
			/// <para>
			/// When this method returns, contains a pointer to a pointer to the factory that created this resource. This parameter is
			/// passed uninitialized.
			/// </para>
			/// </param>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1resource-getfactory void GetFactory( ID2D1Factory
			// **factory );
			[PreserveSig]
			new void GetFactory(out ID2D1Factory factory);

			/// <summary>Retrieves the bounds of the geometry.</summary>
			/// <param name="worldTransform">
			/// <para>Type: <c>const D2D1_MATRIX_3X2_F*</c></para>
			/// <para>The transform to apply to this geometry before calculating its bounds, or <c>NULL</c>.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>D2D1_RECT_F*</c></para>
			/// <para>
			/// When this method returns, contains the bounds of this geometry. If the bounds are empty, this parameter will be a rect where
			/// bounds.left &gt; bounds.right. You must allocate storage for this parameter.
			/// </para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-getbounds(constd2d1_matrix_3x2_f_d2d1_rect_f)
			// HRESULT GetBounds( const D2D1_MATRIX_3X2_F *worldTransform, D2D1_RECT_F *bounds );
			new D2D_RECT_F GetBounds([In, Optional] IntPtr worldTransform);

			/// <summary>
			/// Gets the bounds of the geometry after it has been widened by the specified stroke width and style and transformed by the
			/// specified matrix.
			/// </summary>
			/// <param name="strokeWidth">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>The amount by which to widen the geometry by stroking its outline.</para>
			/// </param>
			/// <param name="strokeStyle">
			/// <para>Type: <c>ID2D1StrokeStyle*</c></para>
			/// <para>The style of the stroke that widens the geometry.</para>
			/// </param>
			/// <param name="worldTransform">
			/// <para>Type: <c>const D2D1_MATRIX_3X2_F*</c></para>
			/// <para>
			/// A transform to apply to the geometry after the geometry is transformed and after the geometry has been stroked, or <c>NULL</c>.
			/// </para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>D2D1_RECT_F*</c></para>
			/// <para>When this method returns, contains the bounds of the widened geometry. You must allocate storage for this parameter.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-getwidenedbounds%28float_id2d1strokestyle_constd2d1_matrix_3x2_f_float_d2d1_rect_f%29
			// HRESULT GetWidenedBounds( FLOAT strokeWidth, ID2D1StrokeStyle *strokeStyle, const D2D1_MATRIX_3X2_F *worldTransform, FLOAT
			// flatteningTolerance, D2D1_RECT_F *bounds );
			new D2D_RECT_F GetWidenedBounds(float strokeWidth, [In, Optional] ID2D1StrokeStyle strokeStyle, [In, Optional] IntPtr worldTransform, float flatteningTolerance);

			/// <summary>
			/// Determines whether the geometry's stroke contains the specified point given the specified stroke thickness, style, and transform.
			/// </summary>
			/// <param name="point">
			/// <para>Type: [in] <c>D2D1_POINT_2F</c></para>
			/// <para>The point to test for containment.</para>
			/// </param>
			/// <param name="strokeWidth">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>The thickness of the stroke to apply.</para>
			/// </param>
			/// <param name="strokeStyle">
			/// <para>Type: [in, optional] <c>ID2D1StrokeStyle*</c></para>
			/// <para>The style of stroke to apply.</para>
			/// </param>
			/// <param name="worldTransform">
			/// <para>Type: [in, optional] <c>const D2D1_MATRIX_3X2_F*</c></para>
			/// <para>The transform to apply to the stroked geometry.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The numeric accuracy with which the precise geometric path and path intersection is calculated. Points missing the stroke by
			/// less than the tolerance are still considered inside. Smaller values produce more accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>BOOL*</c></para>
			/// <para>
			/// When this method returns, contains a boolean value set to true if the geometry's stroke contains the specified point;
			/// otherwise, false. You must allocate storage for this parameter.
			/// </para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-strokecontainspoint%28d2d1_point_2f_float_id2d1strokestyle_constd2d1_matrix_3x2_f_float_bool%29
			// HRESULT StrokeContainsPoint( D2D1_POINT_2F point, FLOAT strokeWidth, ID2D1StrokeStyle *strokeStyle, const D2D1_MATRIX_3X2_F
			// *worldTransform, FLOAT flatteningTolerance, BOOL *contains );
			[return: MarshalAs(UnmanagedType.Bool)]
			new bool StrokeContainsPoint(D2D_POINT_2F point, float strokeWidth, [In, Optional] ID2D1StrokeStyle strokeStyle, [In, Optional] IntPtr worldTransform, float flatteningTolerance);

			/// <summary>
			/// Indicates whether the area filled by the geometry would contain the specified point given the specified flattening tolerance.
			/// </summary>
			/// <param name="point">
			/// <para>Type: <c>D2D1_POINT_2F</c></para>
			/// <para>The point to test.</para>
			/// </param>
			/// <param name="worldTransform">
			/// <para>Type: <c>const D2D1_MATRIX_3X2_F</c></para>
			/// <para>The transform to apply to the geometry prior to testing for containment.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>
			/// The numeric accuracy with which the precise geometric path and path intersection is calculated. Points missing the fill by
			/// less than the tolerance are still considered inside. Smaller values produce more accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>BOOL*</c></para>
			/// <para>
			/// When this method returns, contains a bool value that is true if the area filled by the geometry contains point; otherwise,
			/// false. You must allocate storage for this parameter.
			/// </para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-fillcontainspoint(d2d1_point_2f_constd2d1_matrix_3x2_f__float_bool)
			// HRESULT FillContainsPoint( D2D1_POINT_2F point, const D2D1_MATRIX_3X2_F &amp; worldTransform, FLOAT flatteningTolerance, BOOL
			// *contains );
			[return: MarshalAs(UnmanagedType.Bool)]
			new bool FillContainsPoint(D2D_POINT_2F point, [In, Optional] IntPtr worldTransform, float flatteningTolerance);

			/// <summary>
			/// Describes the intersection between this geometry and the specified geometry. The comparison is performed by using the
			/// specified flattening tolerance.
			/// </summary>
			/// <param name="inputGeometry">
			/// <para>Type: [in] <c>ID2D1Geometry*</c></para>
			/// <para>The geometry to test.</para>
			/// </param>
			/// <param name="inputGeometryTransform">
			/// <para>Type: [in, optional] <c>const D2D1_MATRIX_3X2_F*</c></para>
			/// <para>The transform to apply to inputGeometry, or <c>NULL</c>.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>D2D1_GEOMETRY_RELATION*</c></para>
			/// <para>
			/// When this method returns, contains a pointer to a value that describes how this geometry is related to inputGeometry. You
			/// must allocate storage for this parameter.
			/// </para>
			/// </returns>
			/// <remarks>
			/// <para>
			/// When interpreting the returned relation value, it is important to remember that the member
			/// D2D1_GEOMETRY_RELATION_IS_CONTAINED of the <c>D2D1_GEOMETRY_RELATION</c> enumeration type means that this geometry is
			/// contained inside inputGeometry, not that this geometry contains inputGeometry.
			/// </para>
			/// <para>For more information about how to interpret other possible return values, see D2D1_GEOMETRY_RELATION.</para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-comparewithgeometry%28id2d1geometry_constd2d1_matrix_3x2_f_float_d2d1_geometry_relation%29
			// HRESULT CompareWithGeometry( ID2D1Geometry *inputGeometry, const D2D1_MATRIX_3X2_F *inputGeometryTransform, FLOAT
			// flatteningTolerance, D2D1_GEOMETRY_RELATION *relation );
			new D2D1_GEOMETRY_RELATION CompareWithGeometry([In] ID2D1Geometry inputGeometry, [In, Optional] IntPtr inputGeometryTransform, float flatteningTolerance);

			/// <summary>
			/// Creates a simplified version of the geometry that contains only lines and (optionally) cubic Bezier curves and writes the
			/// result to an ID2D1SimplifiedGeometrySink.
			/// </summary>
			/// <param name="simplificationOption">
			/// <para>Type: [in] <c>D2D1_GEOMETRY_SIMPLIFICATION_OPTION</c></para>
			/// <para>A value that specifies whether the simplified geometry should contain curves.</para>
			/// </param>
			/// <param name="worldTransform">
			/// <para>Type: [in, optional] <c>const D2D1_MATRIX_3X2_F*</c></para>
			/// <para>The transform to apply to the simplified geometry, or <c>NULL</c>.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <param name="geometrySink">
			/// <para>Type: [in] <c>ID2D1SimplifiedGeometrySink*</c></para>
			/// <para>The ID2D1SimplifiedGeometrySink to which the simplified geometry is appended.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>HRESULT</c></para>
			/// <para>If this method succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-simplify%28d2d1_geometry_simplification_option_constd2d1_matrix_3x2_f_float_id2d1simplifiedgeometrysink%29
			// HRESULT Simplify( D2D1_GEOMETRY_SIMPLIFICATION_OPTION simplificationOption, const D2D1_MATRIX_3X2_F *worldTransform, FLOAT
			// flatteningTolerance, ID2D1SimplifiedGeometrySink *geometrySink );
			new void Simplify(D2D1_GEOMETRY_SIMPLIFICATION_OPTION simplificationOption, [In, Optional] IntPtr worldTransform, float flatteningTolerance, [In] ID2D1SimplifiedGeometrySink geometrySink);

			/// <summary>
			/// Creates a set of clockwise-wound triangles that cover the geometry after it has been transformed using the specified matrix
			/// and flattened using the specified tolerance.
			/// </summary>
			/// <param name="worldTransform">
			/// <para>Type: [in, optional] <c>const D2D1_MATRIX_3X2_F*</c></para>
			/// <para>The transform to apply to this geometry, or <c>NULL</c>.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <param name="tessellationSink">
			/// <para>Type: [in] <c>ID2D1TessellationSink*</c></para>
			/// <para>The ID2D1TessellationSink to which the tessellated is appended.</para>
			/// </param>
			// https://docs.microsoft.com/ja-jp/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-tessellate%28constd2d1_matrix_3x2_f_float_id2d1tessellationsink%29
			// HRESULT Tessellate( const D2D1_MATRIX_3X2_F *worldTransform, FLOAT flatteningTolerance, ID2D1TessellationSink
			// *tessellationSink );
			new void Tessellate([In, Optional] IntPtr worldTransform, float flatteningTolerance, [In] ID2D1TessellationSink tessellationSink);

			/// <summary>Combines this geometry with the specified geometry and stores the result in an ID2D1SimplifiedGeometrySink.</summary>
			/// <param name="inputGeometry">
			/// <para>Type: [in] <c>ID2D1Geometry*</c></para>
			/// <para>The geometry to combine with this instance.</para>
			/// </param>
			/// <param name="combineMode">
			/// <para>Type: [in] <c>D2D1_COMBINE_MODE</c></para>
			/// <para>The type of combine operation to perform.</para>
			/// </param>
			/// <param name="inputGeometryTransform">
			/// <para>Type: [in] <c>const D2D1_MATRIX_3X2_F &amp;</c></para>
			/// <para>The transform to apply to inputGeometry before combining.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <param name="geometrySink">
			/// <para>Type: [in] <c>ID2D1SimplifiedGeometrySink*</c></para>
			/// <para>The result of the combine operation.</para>
			/// </param>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-combinewithgeometry(id2d1geometry_d2d1_combine_mode_constd2d1_matrix_3x2_f__float_id2d1simplifiedgeometrysink)
			// HRESULT CombineWithGeometry( ID2D1Geometry *inputGeometry, D2D1_COMBINE_MODE combineMode, const D2D1_MATRIX_3X2_F &amp;
			// inputGeometryTransform, FLOAT flatteningTolerance, ID2D1SimplifiedGeometrySink *geometrySink );
			new void CombineWithGeometry([In] ID2D1Geometry inputGeometry, D2D1_COMBINE_MODE combineMode, [In, Optional] IntPtr inputGeometryTransform, float flatteningTolerance, [In] ID2D1SimplifiedGeometrySink geometrySink);

			/// <summary>Computes the outline of the geometry and writes the result to an ID2D1SimplifiedGeometrySink.</summary>
			/// <param name="worldTransform">
			/// <para>Type: <c>const D2D1_MATRIX_3X2_F*</c></para>
			/// <para>The transform to apply to the geometry outline, or <c>NULL</c>.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <param name="geometrySink">
			/// <para>Type: <c>ID2D1SimplifiedGeometrySink*</c></para>
			/// <para>The ID2D1SimplifiedGeometrySink to which the geometry's transformed outline is appended.</para>
			/// </param>
			/// <remarks>
			/// <para>
			/// The Outline method allows the caller to produce a geometry with an equivalent fill to the input geometry, with the following
			/// additional properties:
			/// </para>
			/// <list type="bullet">
			/// <item>
			/// <term>The output geometry contains no transverse intersections; that is, segments may touch, but they never cross.</term>
			/// </item>
			/// <item>
			/// <term>The outermost figures in the output geometry are all oriented counterclockwise.</term>
			/// </item>
			/// <item>
			/// <term>
			/// The output geometry is fill-mode invariant; that is, the fill of the geometry does not depend on the choice of the fill
			/// mode. For more information about the fill mode, see D2D1_FILL_MODE.
			/// </term>
			/// </item>
			/// </list>
			/// <para>
			/// Additionally, the Outline method can be useful in removing redundant portions of said geometries to simplify complex
			/// geometries. It can also be useful in combination with ID2D1GeometryGroup to create unions among several geometries simultaneously.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-outline%28constd2d1_matrix_3x2_f_float_id2d1simplifiedgeometrysink%29
			// HRESULT Outline( const D2D1_MATRIX_3X2_F *worldTransform, FLOAT flatteningTolerance, ID2D1SimplifiedGeometrySink
			// *geometrySink );
			new void Outline([In, Optional] IntPtr worldTransform, float flatteningTolerance, [In] ID2D1SimplifiedGeometrySink geometrySink);

			/// <summary>
			/// Computes the area of the geometry after it has been transformed by the specified matrix and flattened using the specified tolerance.
			/// </summary>
			/// <param name="worldTransform">
			/// <para>Type: [in] <c>const D2D1_MATRIX_3X2_F &amp;</c></para>
			/// <para>The transform to apply to this geometry before computing its area.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>FLOAT*</c></para>
			/// <para>
			/// When this method returns, contains a pointer to the area of the transformed, flattened version of this geometry. You must
			/// allocate storage for this parameter.
			/// </para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-computearea(constd2d1_matrix_3x2_f__float_float)
			// HRESULT ComputeArea( const D2D1_MATRIX_3X2_F &amp; worldTransform, FLOAT flatteningTolerance, FLOAT *area );
			new float ComputeArea([In, Optional] IntPtr worldTransform, float flatteningTolerance);

			/// <summary>Calculates the length of the geometry as though each segment were unrolled into a line.</summary>
			/// <param name="worldTransform">
			/// <para>Type: [in] <c>const D2D1_MATRIX_3X2_F &amp;</c></para>
			/// <para>The transform to apply to the geometry before calculating its length.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>FLOAT*</c></para>
			/// <para>
			/// When this method returns, contains a pointer to the length of the geometry. For closed geometries, the length includes an
			/// implicit closing segment. You must allocate storage for this parameter.
			/// </para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-computelength(constd2d1_matrix_3x2_f__float_float)
			// HRESULT ComputeLength( const D2D1_MATRIX_3X2_F &amp; worldTransform, FLOAT flatteningTolerance, FLOAT *length );
			new float ComputeLength([In, Optional] IntPtr worldTransform, float flatteningTolerance);

			/// <summary>
			/// Calculates the point and tangent vector at the specified distance along the geometry after it has been transformed by the
			/// specified matrix and flattened using the specified tolerance.
			/// </summary>
			/// <param name="length">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The distance along the geometry of the point and tangent to find. If this distance is less than 0, this method calculates
			/// the first point in the geometry. If this distance is greater than the length of the geometry, this method calculates the
			/// last point in the geometry.
			/// </para>
			/// </param>
			/// <param name="worldTransform">
			/// <para>Type: [in] <c>const D2D1_MATRIX_3X2_F &amp;</c></para>
			/// <para>The transform to apply to the geometry before calculating the specified point and tangent.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <param name="point">
			/// <para>Type: [out, optional] <c>D2D1_POINT_2F*</c></para>
			/// <para>
			/// The location at the specified distance along the geometry. If the geometry is empty, this point contains NaN as its x and y values.
			/// </para>
			/// </param>
			/// <param name="unitTangentVector">
			/// <para>Type: [out, optional] <c>D2D1_POINT_2F*</c></para>
			/// <para>
			/// When this method returns, contains a pointer to the tangent vector at the specified distance along the geometry. If the
			/// geometry is empty, this vector contains NaN as its x and y values. You must allocate storage for this parameter.
			/// </para>
			/// </param>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-computepointatlength(float_constd2d1_matrix_3x2_f__float_d2d1_point_2f_d2d1_point_2f)
			// HRESULT ComputePointAtLength( FLOAT length, const D2D1_MATRIX_3X2_F &amp; worldTransform, FLOAT flatteningTolerance,
			// D2D1_POINT_2F *point, D2D1_POINT_2F *unitTangentVector );
			new void ComputePointAtLength(float length, [In, Optional] IntPtr worldTransform, float flatteningTolerance, out D2D_POINT_2F point, out D2D_POINT_2F unitTangentVector);

			/// <summary>
			/// Widens the geometry by the specified stroke and writes the result to an ID2D1SimplifiedGeometrySink after it has been
			/// transformed by the specified matrix and flattened using the specified tolerance.
			/// </summary>
			/// <param name="strokeWidth">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>The amount by which to widen the geometry.</para>
			/// </param>
			/// <param name="strokeStyle">
			/// <para>Type: [in, optional] <c>ID2D1StrokeStyle*</c></para>
			/// <para>The style of stroke to apply to the geometry, or <c>NULL</c>.</para>
			/// </param>
			/// <param name="worldTransform">
			/// <para>Type: [in] <c>const D2D1_MATRIX_3X2_F &amp;</c></para>
			/// <para>The transform to apply to the geometry after widening it.</para>
			/// </param>
			/// <param name="flatteningTolerance">
			/// <para>Type: [in] <c>FLOAT</c></para>
			/// <para>
			/// The maximum error allowed when constructing a polygonal approximation of the geometry. No point in the polygonal
			/// representation will diverge from the original geometry by more than the flattening tolerance. Smaller values produce more
			/// accurate results but cause slower execution.
			/// </para>
			/// </param>
			/// <param name="geometrySink">
			/// <para>Type: [in] <c>ID2D1SimplifiedGeometrySink*</c></para>
			/// <para>The ID2D1SimplifiedGeometrySink to which the widened geometry is appended.</para>
			/// </param>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1geometry-widen(float_id2d1strokestyle_constd2d1_matrix_3x2_f__float_id2d1simplifiedgeometrysink)
			// HRESULT Widen( FLOAT strokeWidth, ID2D1StrokeStyle *strokeStyle, const D2D1_MATRIX_3X2_F &amp; worldTransform, FLOAT
			// flatteningTolerance, ID2D1SimplifiedGeometrySink *geometrySink );
			new void Widen(float strokeWidth, [In, Optional] ID2D1StrokeStyle strokeStyle, [In, Optional] IntPtr worldTransform, float flatteningTolerance, [In] ID2D1SimplifiedGeometrySink geometrySink);

			/// <summary>Gets the D2D1_ELLIPSE structure that describes this ellipse geometry.</summary>
			/// <param name="ellipse">
			/// <para>Type: <c>D2D1_ELLIPSE*</c></para>
			/// <para>
			/// When this method returns, contains the D2D1_ELLIPSE that describes the size and position of the ellipse. You must allocate
			/// storage for this parameter.
			/// </para>
			/// </param>
			/// <returns>None</returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1ellipsegeometry-getellipse void GetEllipse( D2D1_ELLIPSE
			// *ellipse );
			[PreserveSig]
			void GetEllipse(out D2D1_ELLIPSE ellipse);
		}

		/// <summary>Creates Direct2D resources.</summary>
		/// <remarks>
		/// <para>
		/// The <c>ID2D1Factory</c> interface is the starting point for using Direct2D; it's what you use to create other Direct2D resources
		/// that you can use to draw or describe shapes.
		/// </para>
		/// <para>A factory defines a set of CreateResource methods that can produce the following drawing resources:</para>
		/// <list type="bullet">
		/// <item>
		/// <term>Render targets: objects that render drawing commands.</term>
		/// </item>
		/// <item>
		/// <term>
		/// Drawing state blocks: objects that store drawing state information, such as the current transformation and antialiasing mode.
		/// </term>
		/// </item>
		/// <item>
		/// <term>Geometries: objects that represent simple and potentially complex shapes.</term>
		/// </item>
		/// </list>
		/// <para>
		/// To create an <c>ID2D1Factory</c>, you use one of the CreateFactory methods. You should retain the <c>ID2D1Factory</c> instance
		/// for as long as you use Direct2D resources; in general, you shouldn't need to recreate it when the application is running. For
		/// more information about Direct2D resources, see the Resources Overview.
		/// </para>
		/// <para>Singlethreaded and Multithreaded Factories</para>
		/// <para>
		/// When you create a factory, you can specify whether it is multithreaded or singlethreaded. A singlethreaded factory provides no
		/// serialization against any other single threaded instance within Direct2D, so, this mechanism provides a very large degree of
		/// scaling on the CPU.
		/// </para>
		/// <para>
		/// You can also create a multithreaded factory instance. In this case, the factory and all derived objects can be used from any
		/// thread and each render target can be rendered to independently. Direct2D serializes calls to these objects, so a single
		/// multithreaded Direct2D instance won't scale as well on the CPU as many single threaded instances. However, the resources can be
		/// shared within the multithreaded instance.
		/// </para>
		/// <para>
		/// Note that the qualifier "On the CPU": GPUs generally take advantage of fine-grained parallelism more so than CPUs. For example,
		/// multithreaded calls from the CPU might still end up being serialized when being sent to the GPU, however, a whole bank of pixel
		/// and vertex shaders will run in parallel to perform the rendering.
		/// </para>
		/// <para>See Multithreaded Direct2D Apps for more info.</para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nn-d2d1-id2d1factory
		[PInvokeData("d2d1.h", MSDNShortId = "cef6115c-98e8-49e6-b419-271b43ce2938")]
		[ComImport, Guid("06152247-6f50-465a-9245-118bfd3b6007"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
		public interface ID2D1Factory
		{
			/// <summary>Forces the factory to refresh any system defaults that it might have changed since factory creation.</summary>
			/// <remarks>You should call this method before calling the GetDesktopDpi method, to ensure that the system DPI is current.</remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-reloadsystemmetrics HRESULT ReloadSystemMetrics();
			void ReloadSystemMetrics();

			/// <summary>Retrieves the current desktop dots per inch (DPI). To refresh this value, call ReloadSystemMetrics.</summary>
			/// <param name="dpiX">
			/// <para>Type: <c>FLOAT*</c></para>
			/// <para>When this method returns, contains the horizontal DPI of the desktop. You must allocate storage for this parameter.</para>
			/// </param>
			/// <param name="dpiY">
			/// <para>Type: <c>FLOAT*</c></para>
			/// <para>When this method returns, contains the vertical DPI of the desktop. You must allocate storage for this parameter.</para>
			/// </param>
			/// <returns>None</returns>
			/// <remarks>
			/// Use this method to obtain the system DPI when setting physical pixel values, such as when you specify the size of a window.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-getdesktopdpi void GetDesktopDpi( FLOAT *dpiX,
			// FLOAT *dpiY );
			[PreserveSig, Obsolete]
			void GetDesktopDpi(out float dpiX, out float dpiY);

			/// <summary>Creates an ID2D1RectangleGeometry.</summary>
			/// <param name="rectangle">
			/// <para>Type: [in] <c>const D2D1_RECT_F*</c></para>
			/// <para>The coordinates of the rectangle geometry.</para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1RectangleGeometry**</c></para>
			/// <para>When this method returns, contains the address of the pointer to the rectangle geometry created by this method.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createrectanglegeometry%28constd2d1_rect_f_id2d1rectanglegeometry%29
			// HRESULT CreateRectangleGeometry( const D2D1_RECT_F *rectangle, ID2D1RectangleGeometry **rectangleGeometry );
			ID2D1RectangleGeometry CreateRectangleGeometry(in D2D_RECT_F rectangle);

			/// <summary>Creates an ID2D1RoundedRectangleGeometry.</summary>
			/// <param name="roundedRectangle">
			/// <para>Type: [in] <c>const D2D1_ROUNDED_RECT*</c></para>
			/// <para>The coordinates and corner radii of the rounded rectangle geometry.</para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1RoundedRectangleGeometry**</c></para>
			/// <para>When this method returns, contains the address of the pointer to the rounded rectangle geometry created by this method.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createroundedrectanglegeometry%28constd2d1_rounded_rect_id2d1roundedrectanglegeometry%29
			// HRESULT CreateRoundedRectangleGeometry( const D2D1_ROUNDED_RECT *roundedRectangle, ID2D1RoundedRectangleGeometry
			// **roundedRectangleGeometry );
			ID2D1RoundedRectangleGeometry CreateRoundedRectangleGeometry(in D2D1_ROUNDED_RECT roundedRectangle);

			/// <summary>Creates an ID2D1EllipseGeometry.</summary>
			/// <param name="ellipse">
			/// <para>Type: [in] <c>const D2D1_ELLIPSE &amp;</c></para>
			/// <para>A value that describes the center point, x-radius, and y-radius of the ellipse geometry.</para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1EllipseGeometry**</c></para>
			/// <para>When this method returns, contains the address of the pointer to the ellipse geometry created by this method.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createellipsegeometry%28constd2d1_ellipse__id2d1ellipsegeometry%29
			// HRESULT CreateEllipseGeometry( const D2D1_ELLIPSE &amp; ellipse, ID2D1EllipseGeometry **ellipseGeometry );
			ID2D1EllipseGeometry CreateEllipseGeometry(in D2D1_ELLIPSE ellipse);

			/// <summary>Creates an ID2D1GeometryGroup, which is an object that holds other geometries.</summary>
			/// <param name="fillMode">
			/// <para>Type: <c>D2D1_FILL_MODE</c></para>
			/// <para>A value that specifies the rule that a composite shape uses to determine whether a given point is part of the geometry.</para>
			/// </param>
			/// <param name="geometries">
			/// <para>Type: <c>ID2D1Geometry**</c></para>
			/// <para>
			/// An array containing the geometry objects to add to the geometry group. The number of elements in this array is indicated by
			/// the geometriesCount parameter.
			/// </para>
			/// </param>
			/// <param name="geometriesCount">
			/// <para>Type: <c>UINT</c></para>
			/// <para>The number of elements in geometries.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1GeometryGroup**</c></para>
			/// <para>When this method returns, contains the address of a pointer to the geometry group created by this method.</para>
			/// </returns>
			/// <remarks>
			/// Geometry groups are a convenient way to group several geometries simultaneously so all figures of several distinct
			/// geometries are concatenated into one. To create a ID2D1GeometryGroup object, call the <c>CreateGeometryGroup</c> method on
			/// the ID2D1Factory object, passing in the fillMode with possible values of D2D1_FILL_MODE_ALTERNATE (alternate) and
			/// <c>D2D1_FILL_MODE_WINDING</c>, an array of geometry objects to add to the geometry group, and the number of elements in this array.
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-creategeometrygroup HRESULT CreateGeometryGroup(
			// D2D1_FILL_MODE fillMode, ID2D1Geometry **geometries, UINT32 geometriesCount, ID2D1GeometryGroup **geometryGroup );
			ID2D1GeometryGroup CreateGeometryGroup(D2D1_FILL_MODE fillMode, [In, MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.Interface, SizeParamIndex = 2)] ID2D1Geometry[] geometries, uint geometriesCount);

			/// <summary>Transforms the specified geometry and stores the result as an ID2D1TransformedGeometry object.</summary>
			/// <param name="sourceGeometry">
			/// <para>Type: [in] <c>ID2D1Geometry*</c></para>
			/// <para>The geometry to transform.</para>
			/// </param>
			/// <param name="transform">
			/// <para>Type: [in] <c>const D2D1_MATRIX_3X2_F*</c></para>
			/// <para>The transformation to apply.</para>
			/// </param>
			/// <returns>
			/// <para>Type: [out] <c>ID2D1TransformedGeometry**</c></para>
			/// <para>
			/// When this method returns, contains the address of the pointer to the new transformed geometry object. The transformed
			/// geometry stores the result of transforming sourceGeometry by transform.
			/// </para>
			/// </returns>
			/// <remarks>
			/// <para>
			/// Like other resources, a transformed geometry inherits the resource space and threading policy of the factory that created
			/// it. This object is immutable.
			/// </para>
			/// <para>
			/// When stroking a transformed geometry with the DrawGeometry method, the stroke width is not affected by the transform applied
			/// to the geometry. The stroke width is only affected by the world transform.
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createtransformedgeometry%28id2d1geometry_constd2d1_matrix_3x2_f_id2d1transformedgeometry%29
			// HRESULT CreateTransformedGeometry( ID2D1Geometry *sourceGeometry, const D2D1_MATRIX_3X2_F *transform,
			// ID2D1TransformedGeometry **transformedGeometry );
			ID2D1TransformedGeometry CreateTransformedGeometry([In] ID2D1Geometry sourceGeometry, in D2D_MATRIX_3X2_F transform);

			/// <summary>Creates an empty ID2D1PathGeometry.</summary>
			/// <returns>
			/// <para>Type: <c>ID2D1PathGeometry**</c></para>
			/// <para>When this method returns, contains the address to a pointer to the path geometry created by this method.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createpathgeometry HRESULT CreatePathGeometry(
			// ID2D1PathGeometry **pathGeometry );
			ID2D1PathGeometry CreatePathGeometry();

			/// <summary>Creates an ID2D1StrokeStyle that describes start cap, dash pattern, and other features of a stroke.</summary>
			/// <param name="strokeStyleProperties">
			/// <para>Type: <c>const D2D1_STROKE_STYLE_PROPERTIES</c></para>
			/// <para>A structure that describes the stroke's line cap, dash offset, and other details of a stroke.</para>
			/// </param>
			/// <param name="dashes">
			/// <para>Type: <c>const FLOAT*</c></para>
			/// <para>
			/// An array whose elements are set to the length of each dash and space in the dash pattern. The first element sets the length
			/// of a dash, the second element sets the length of a space, the third element sets the length of a dash, and so on. The length
			/// of each dash and space in the dash pattern is the product of the element value in the array and the stroke width.
			/// </para>
			/// </param>
			/// <param name="dashesCount">
			/// <para>Type: <c>UINT</c></para>
			/// <para>The number of elements in the dashes array.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1StrokeStyle**</c></para>
			/// <para>When this method returns, contains the address of the pointer to the stroke style created by this method.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createstrokestyle%28constd2d1_stroke_style_properties__constfloat_uint32_id2d1strokestyle%29
			// HRESULT CreateStrokeStyle( const D2D1_STROKE_STYLE_PROPERTIES &amp; strokeStyleProperties, const FLOAT *dashes, UINT32
			// dashesCount, ID2D1StrokeStyle **strokeStyle );
			ID2D1StrokeStyle CreateStrokeStyle(in D2D1_STROKE_STYLE_PROPERTIES strokeStyleProperties, [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)] float[] dashes, uint dashesCount);

			/// <summary>
			/// Creates an ID2D1DrawingStateBlock that can be used with the SaveDrawingState and RestoreDrawingState methods of a render target.
			/// </summary>
			/// <param name="drawingStateDescription">
			/// <para>Type: <c>const D2D1_DRAWING_STATE_DESCRIPTION*</c></para>
			/// <para>A structure that contains antialiasing, transform, and tags information.</para>
			/// </param>
			/// <param name="textRenderingParams">
			/// <para>Type: <c>IDWriteRenderingParams*</c></para>
			/// <para>Optional text parameters that indicate how text should be rendered.</para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1DrawingStateBlock**</c></para>
			/// <para>When this method returns, contains the address of a pointer to the new drawing state block created by this method.</para>
			/// </returns>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createdrawingstateblock%28constd2d1_drawing_state_description_idwriterenderingparams_id2d1drawingstateblock%29
			// HRESULT CreateDrawingStateBlock( const D2D1_DRAWING_STATE_DESCRIPTION *drawingStateDescription, IDWriteRenderingParams
			// *textRenderingParams, ID2D1DrawingStateBlock **drawingStateBlock );
			ID2D1DrawingStateBlock CreateDrawingStateBlock([In, Optional] IntPtr drawingStateDescription, [In, Optional] IDWriteRenderingParams textRenderingParams);

			/// <summary>Creates a render target that renders to a Microsoft Windows Imaging Component (WIC) bitmap.</summary>
			/// <param name="target">
			/// <para>Type: <c>IWICBitmap*</c></para>
			/// <para>The bitmap that receives the rendering output of the render target.</para>
			/// </param>
			/// <param name="renderTargetProperties">
			/// <para>Type: <c>const D2D1_RENDER_TARGET_PROPERTIES</c></para>
			/// <para>
			/// The rendering mode, pixel format, remoting options, DPI information, and the minimum DirectX support required for hardware
			/// rendering. For information about supported pixel formats, see Supported Pixel Formats and Alpha Modes.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1RenderTarget**</c></para>
			/// <para>When this method returns, contains the address of the pointer to the ID2D1RenderTarget object created by this method.</para>
			/// </returns>
			/// <remarks>
			/// <para>
			/// You must use D2D1_FEATURE_LEVEL_DEFAULT for the <c>minLevel</c> member of the renderTargetProperties parameter with this method.
			/// </para>
			/// <para>
			/// Your application should create render targets once and hold onto them for the life of the application or until the
			/// D2DERR_RECREATE_TARGET error is received. When you receive this error, you need to recreate the render target (and any
			/// resources it created).
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createwicbitmaprendertarget%28iwicbitmap_constd2d1_render_target_properties__id2d1rendertarget%29
			// HRESULT CreateWicBitmapRenderTarget( IWICBitmap *target, const D2D1_RENDER_TARGET_PROPERTIES &amp; renderTargetProperties,
			// ID2D1RenderTarget **renderTarget );
			ID2D1RenderTarget CreateWicBitmapRenderTarget([In] IWICBitmap target, in D2D1_RENDER_TARGET_PROPERTIES renderTargetProperties);

			/// <summary>Creates an <c>ID2D1HwndRenderTarget</c>, a render target that renders to a window.</summary>
			/// <param name="renderTargetProperties">
			/// <para>[in] Type: <c>D2D1_RENDER_TARGET_PROPERTIES*</c></para>
			/// <para>
			/// The rendering mode, pixel format, remoting options, DPI information, and the minimum DirectX support required for hardware
			/// rendering. For information about supported pixel formats, see Supported Pixel Formats and Alpha Modes.
			/// </para>
			/// </param>
			/// <param name="hwndRenderTargetProperties">
			/// <para>[in] Type: <c>D2D1_HWND_RENDER_TARGET_PROPERTIES*</c></para>
			/// <para>The window handle, initial size (in pixels), and present options.</para>
			/// </param>
			/// <returns>
			/// <para>[out] Type: <c>ID2D1HwndRenderTarget**</c></para>
			/// <para>
			/// When this method returns, contains the address of the pointer to the <c>ID2D1HwndRenderTarget</c> object created by this method.
			/// </para>
			/// </returns>
			/// <remarks>
			/// When you create a render target and hardware acceleration is available, you allocate resources on the computer's GPU. By
			/// creating a render target once and retaining it as long as possible, you gain performance benefits. Your application should
			/// create render targets once and hold onto them for the life of the application or until the <c>D2DERR_RECREATE_TARGET</c>
			/// error is received. When you receive this error, you need to recreate the render target (and any resources it created).
			/// </remarks>
			// https://docs.microsoft.com/en-us/previous-versions/windows/desktop/legacy/dd371275(v=vs.85) virtual HRESULT
			// CreateHwndRenderTarget( [in] D2D1_RENDER_TARGET_PROPERTIES *renderTargetProperties, [in] D2D1_HWND_RENDER_TARGET_PROPERTIES
			// *hwndRenderTargetProperties, [out] ID2D1HwndRenderTarget **hwndRenderTarget ) = 0;
			ID2D1HwndRenderTarget CreateHwndRenderTarget(in D2D1_RENDER_TARGET_PROPERTIES renderTargetProperties, in D2D1_HWND_RENDER_TARGET_PROPERTIES hwndRenderTargetProperties);

			/// <summary>Creates a render target that draws to a DirectX Graphics Infrastructure (DXGI) surface.</summary>
			/// <param name="dxgiSurface">
			/// <para>Type: <c>IDXGISurface*</c></para>
			/// <para>The IDXGISurface to which the render target will draw.</para>
			/// </param>
			/// <param name="renderTargetProperties">
			/// <para>Type: <c>const D2D1_RENDER_TARGET_PROPERTIES &amp;</c></para>
			/// <para>
			/// The rendering mode, pixel format, remoting options, DPI information, and the minimum DirectX support required for hardware
			/// rendering. For information about supported pixel formats, see Supported Pixel Formats and Alpha Modes.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1RenderTarget**</c></para>
			/// <para>When this method returns, contains the address of the pointer to the ID2D1RenderTarget object created by this method.</para>
			/// </returns>
			/// <remarks>
			/// <para>
			/// To write to a Direct3D surface, you obtain an IDXGISurface and pass it to the CreateDxgiSurfaceRenderTarget method to create
			/// a DXGI surface render target; you can then use the DXGI surface render target to draw 2-D content to the DXGI surface.
			/// </para>
			/// <para>
			/// A DXGI surface render target is a type of ID2D1RenderTarget. Like other Direct2D render targets, you can use it to create
			/// resources and issue drawing commands.
			/// </para>
			/// <para>
			/// The DXGI surface render target and the DXGI surface must use the same DXGI format. If you specify the DXGI_FORMAT_UNKOWN
			/// format when you create the render target, it will automatically use the surface's format.
			/// </para>
			/// <para>The DXGI surface render target does not perform DXGI surface synchronization.</para>
			/// <para>
			/// For more information about creating and using DXGI surface render targets, see the Direct2D and Direct3D Interoperability Overview.
			/// </para>
			/// <para>
			/// To work with Direct2D, the Direct3D device that provides the IDXGISurface must be created with the
			/// <c>D3D10_CREATE_DEVICE_BGRA_SUPPORT</c> flag.
			/// </para>
			/// <para>
			/// When you create a render target and hardware acceleration is available, you allocate resources on the computer's GPU. By
			/// creating a render target once and retaining it as long as possible, you gain performance benefits. Your application should
			/// create render targets once and hold onto them for the life of the application or until the render target's EndDraw method
			/// returns the D2DERR_RECREATE_TARGET error. When you receive this error, you need to recreate the render target (and any
			/// resources it created).
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createdxgisurfacerendertarget%28idxgisurface_constd2d1_render_target_properties__id2d1rendertarget%29
			// HRESULT CreateDxgiSurfaceRenderTarget( IDXGISurface *dxgiSurface, const D2D1_RENDER_TARGET_PROPERTIES &amp;
			// renderTargetProperties, ID2D1RenderTarget **renderTarget );
			ID2D1RenderTarget CreateDxgiSurfaceRenderTarget([In] IDXGISurface dxgiSurface, in D2D1_RENDER_TARGET_PROPERTIES renderTargetProperties);

			/// <summary>Creates a render target that draws to a Windows Graphics Device Interface (GDI) device context.</summary>
			/// <param name="renderTargetProperties">
			/// <para>Type: <c>const D2D1_RENDER_TARGET_PROPERTIES*</c></para>
			/// <para>
			/// The rendering mode, pixel format, remoting options, DPI information, and the minimum DirectX support required for hardware
			/// rendering. To enable the device context (DC) render target to work with GDI, set the DXGI format to
			/// DXGI_FORMAT_B8G8R8A8_UNORM and the alpha mode to D2D1_ALPHA_MODE_PREMULTIPLIED or <c>D2D1_ALPHA_MODE_IGNORE</c>. For more
			/// information about pixel formats, see Supported Pixel Formats and Alpha Modes.
			/// </para>
			/// </param>
			/// <returns>
			/// <para>Type: <c>ID2D1DCRenderTarget**</c></para>
			/// <para>
			/// When this method returns, dcRenderTarget contains the address of the pointer to the ID2D1DCRenderTarget created by the method.
			/// </para>
			/// </returns>
			/// <remarks>
			/// <para>
			/// Before you can render with a DC render target, you must use the render target's BindDC method to associate it with a GDI DC.
			/// Do this for each different DC and whenever there is a change in the size of the area you want to draw to.
			/// </para>
			/// <para>
			/// To enable the DC render target to work with GDI, set the render target's DXGI format to DXGI_FORMAT_B8G8R8A8_UNORM and alpha
			/// mode to D2D1_ALPHA_MODE_PREMULTIPLIED or <c>D2D1_ALPHA_MODE_IGNORE</c>.
			/// </para>
			/// <para>
			/// Your application should create render targets once and hold on to them for the life of the application or until the render
			/// target's EndDraw method returns the D2DERR_RECREATE_TARGET error. When you receive this error, recreate the render target
			/// (and any resources it created).
			/// </para>
			/// </remarks>
			// https://docs.microsoft.com/en-us/windows/win32/api/d2d1/nf-d2d1-id2d1factory-createdcrendertarget HRESULT
			// CreateDCRenderTarget( const D2D1_RENDER_TARGET_PROPERTIES *renderTargetProperties, ID2D1DCRenderTarget **dcRenderTarget );
			ID2D1DCRenderTarget CreateDCRenderTarget(in D2D1_RENDER_TARGET_PROPERTIES renderTargetProperties);
		}
	}
}