diff --git a/PInvoke/Gdi32/WinGdi.BITMAPINFO.cs b/PInvoke/Gdi32/WinGdi.BITMAPINFO.cs
index fc5ca5f9..502ccd7c 100644
--- a/PInvoke/Gdi32/WinGdi.BITMAPINFO.cs
+++ b/PInvoke/Gdi32/WinGdi.BITMAPINFO.cs
@@ -14,19 +14,20 @@ namespace Vanara.PInvoke
BI_RGB = 0,
///
- /// A run-length encoded (RLE) format for bitmaps with 8 bpp. The compression format is a 2-byte format consisting of a count byte followed by a byte
- /// containing a color index.
+ /// A run-length encoded (RLE) format for bitmaps with 8 bpp. The compression format is a 2-byte format consisting of a count
+ /// byte followed by a byte containing a color index.
///
BI_RLE8 = 1,
///
- /// An RLE format for bitmaps with 4 bpp. The compression format is a 2-byte format consisting of a count byte followed by two word-length color indexes.
+ /// An RLE format for bitmaps with 4 bpp. The compression format is a 2-byte format consisting of a count byte followed by two
+ /// word-length color indexes.
///
BI_RLE4 = 2,
///
- /// Specifies that the bitmap is not compressed and that the color table consists of three DWORD color masks that specify the red, green, and blue
- /// components, respectively, of each pixel. This is valid when used with 16- and 32-bpp bitmaps.
+ /// Specifies that the bitmap is not compressed and that the color table consists of three DWORD color masks that specify the
+ /// red, green, and blue components, respectively, of each pixel. This is valid when used with 16- and 32-bpp bitmaps.
///
BI_BITFIELDS = 3,
@@ -44,38 +45,50 @@ namespace Vanara.PInvoke
{
/// The bitmap type. This member must be zero.
public int bmType;
+
/// The width, in pixels, of the bitmap. The width must be greater than zero.
public int bmWidth;
+
/// The height, in pixels, of the bitmap. The height must be greater than zero.
public int bmHeight;
+
///
- /// The number of bytes in each scan line. This value must be divisible by 2, because the system assumes that the bit values of a bitmap form an
- /// array that is word aligned.
+ /// The number of bytes in each scan line. This value must be divisible by 2, because the system assumes that the bit values of
+ /// a bitmap form an array that is word aligned.
///
public int bmWidthBytes;
+
/// The count of color planes.
public ushort bmPlanes;
+
/// The number of bits required to indicate the color of a pixel.
public ushort bmBitsPixel;
+
///
- /// A pointer to the location of the bit values for the bitmap. The bmBits member must be a pointer to an array of character (1-byte) values.
+ /// A pointer to the location of the bit values for the bitmap. The bmBits member must be a pointer to an array of character
+ /// (1-byte) values.
///
public IntPtr bmBits;
}
/// The BITMAPINFO structure defines the dimensions and color information for a DIB.
///
- /// A DIB consists of two distinct parts: a BITMAPINFO structure describing the dimensions and colors of the bitmap, and an array of bytes defining the
- /// pixels of the bitmap. The bits in the array are packed together, but each scan line must be padded with zeros to end on a LONG data-type boundary. If
- /// the height of the bitmap is positive, the bitmap is a bottom-up DIB and its origin is the lower-left corner. If the height is negative, the bitmap is
- /// a top-down DIB and its origin is the upper left corner.
+ /// A DIB consists of two distinct parts: a BITMAPINFO structure describing the dimensions and colors of the bitmap, and an array of
+ /// bytes defining the pixels of the bitmap. The bits in the array are packed together, but each scan line must be padded with zeros
+ /// to end on a LONG data-type boundary. If the height of the bitmap is positive, the bitmap is a bottom-up DIB and its origin is
+ /// the lower-left corner. If the height is negative, the bitmap is a top-down DIB and its origin is the upper left corner.
///
- /// A bitmap is packed when the bitmap array immediately follows the BITMAPINFO header. Packed bitmaps are referenced by a single pointer. For packed
- /// bitmaps, the biClrUsed member must be set to an even number when using the DIB_PAL_COLORS mode so that the DIB bitmap array starts on a DWORD boundary.
+ /// A bitmap is packed when the bitmap array immediately follows the BITMAPINFO header. Packed bitmaps are referenced by a single
+ /// pointer. For packed bitmaps, the biClrUsed member must be set to an even number when using the DIB_PAL_COLORS mode so that the
+ /// DIB bitmap array starts on a DWORD boundary.
///
/// Note
- /// The bmiColors member should not contain palette indexes if the bitmap is to be stored in a file or transferred to another application.
- /// Unless the application has exclusive use and control of the bitmap, the bitmap color table should contain explicit RGB values.
+ ///
+ /// The bmiColors member should not contain palette indexes if the bitmap is to be stored in a file or transferred to another application.
+ ///
+ ///
+ /// Unless the application has exclusive use and control of the bitmap, the bitmap color table should contain explicit RGB values.
+ ///
///
[StructLayout(LayoutKind.Sequential)]
[PInvokeData("Wingdi.h", MSDNShortId = "dd183375")]
@@ -92,13 +105,16 @@ namespace Vanara.PInvoke
///
/// -
///
- /// An array of 16-bit unsigned integers that specifies indexes into the currently realized logical palette. This use of bmiColors is allowed for
- /// functions that use DIBs. When bmiColors elements contain indexes to a realized logical palette, they must also call the following bitmap
+ /// An array of 16-bit unsigned integers that specifies indexes into the currently realized logical palette. This use of
+ /// bmiColors is allowed for functions that use DIBs. When bmiColors elements contain indexes to a realized logical palette,
+ /// they must also call the following bitmap
/// functions: CreateDIBitmap, CreateDIBPatternBrush, CreateDIBSection (The iUsage parameter of CreateDIBSection must be set to DIB_PAL_COLORS.)
///
///
///
- /// The number of entries in the array depends on the values of the biBitCount and biClrUsed members of the BITMAPINFOHEADER structure.
+ ///
+ /// The number of entries in the array depends on the values of the biBitCount and biClrUsed members of the BITMAPINFOHEADER structure.
+ ///
/// The colors in the bmiColors table appear in order of importance. For more information, see the Remarks section.
///
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)]
@@ -113,6 +129,15 @@ namespace Vanara.PInvoke
{
bmiHeader = new BITMAPINFOHEADER(width, height, bitCount);
}
+
+ /// Creates a structure from the information in a bitmap handle.
+ /// The handle to a bitmap.
+ ///
+ /// A structure with all the information the bitmap handle. If the specified bitmap is less than 24bpp, this resulting structure
+ /// must not be used without creating unmanaged memory to hold the structure and BITMAPINFO.bmiHeader.biClrUsed *
+ /// sizeof(RGBQUAD) extra bytes.
+ ///
+ public static BITMAPINFO FromHBITMAP(in HBITMAP hBmp) => new BITMAPINFO { bmiHeader = BITMAPINFOHEADER.FromHBITMAP(hBmp) };
}
/// The BITMAPINFOHEADER structure contains information about the dimensions and color format of a DIB.
@@ -124,16 +149,21 @@ namespace Vanara.PInvoke
public int biSize;
///
- /// The width of the bitmap, in pixels. If biCompression is BI_JPEG or BI_PNG, the biWidth member specifies the width of the decompressed JPEG or PNG
- /// image file, respectively.
+ /// The width of the bitmap, in pixels. If biCompression is BI_JPEG or BI_PNG, the biWidth member specifies the width of the
+ /// decompressed JPEG or PNG image file, respectively.
///
public int biWidth;
///
- /// The height of the bitmap, in pixels. If biHeight is positive, the bitmap is a bottom-up DIB and its origin is the lower-left corner. If biHeight
- /// is negative, the bitmap is a top-down DIB and its origin is the upper-left corner.
- /// If biHeight is negative, indicating a top-down DIB, biCompression must be either BI_RGB or BI_BITFIELDS. Top-down DIBs cannot be compressed.
- /// If biCompression is BI_JPEG or BI_PNG, the biHeight member specifies the height of the decompressed JPEG or PNG image file, respectively.
+ /// The height of the bitmap, in pixels. If biHeight is positive, the bitmap is a bottom-up DIB and its origin is the lower-left
+ /// corner. If biHeight is negative, the bitmap is a top-down DIB and its origin is the upper-left corner.
+ ///
+ /// If biHeight is negative, indicating a top-down DIB, biCompression must be either BI_RGB or BI_BITFIELDS. Top-down DIBs
+ /// cannot be compressed.
+ ///
+ ///
+ /// If biCompression is BI_JPEG or BI_PNG, the biHeight member specifies the height of the decompressed JPEG or PNG image file, respectively.
+ ///
///
public int biHeight;
@@ -141,8 +171,8 @@ namespace Vanara.PInvoke
public ushort biPlanes;
///
- /// The number of bits-per-pixel. The biBitCount member of the BITMAPINFOHEADER structure determines the number of bits that define each pixel and
- /// the maximum number of colors in the bitmap. This member must be one of the following values.
+ /// The number of bits-per-pixel. The biBitCount member of the BITMAPINFOHEADER structure determines the number of bits that
+ /// define each pixel and the maximum number of colors in the bitmap. This member must be one of the following values.
///
///
/// Value
@@ -155,66 +185,72 @@ namespace Vanara.PInvoke
/// -
/// 1
///
- /// The bitmap is monochrome, and the bmiColors member of BITMAPINFO contains two entries. Each bit in the bitmap array represents a pixel. If the
- /// bit is clear, the pixel is displayed with the color of the first entry in the bmiColors table; if the bit is set, the pixel has the color of the
- /// second entry in the table.
+ /// The bitmap is monochrome, and the bmiColors member of BITMAPINFO contains two entries. Each bit in the bitmap array
+ /// represents a pixel. If the bit is clear, the pixel is displayed with the color of the first entry in the bmiColors table; if
+ /// the bit is set, the pixel has the color of the second entry in the table.
///
///
/// -
/// 4
///
- /// The bitmap has a maximum of 16 colors, and the bmiColors member of BITMAPINFO contains up to 16 entries. Each pixel in the bitmap is represented
- /// by a 4-bit index into the color table. For example, if the first byte in the bitmap is 0x1F, the byte represents two pixels. The first pixel
- /// contains the color in the second table entry, and the second pixel contains the color in the sixteenth table entry.
+ /// The bitmap has a maximum of 16 colors, and the bmiColors member of BITMAPINFO contains up to 16 entries. Each pixel in the
+ /// bitmap is represented by a 4-bit index into the color table. For example, if the first byte in the bitmap is 0x1F, the byte
+ /// represents two pixels. The first pixel contains the color in the second table entry, and the second pixel contains the color
+ /// in the sixteenth table entry.
///
///
/// -
/// 8
///
- /// The bitmap has a maximum of 256 colors, and the bmiColors member of BITMAPINFO contains up to 256 entries. In this case, each byte in the array
- /// represents a single pixel.
+ /// The bitmap has a maximum of 256 colors, and the bmiColors member of BITMAPINFO contains up to 256 entries. In this case,
+ /// each byte in the array represents a single pixel.
///
///
/// -
/// 16
///
- /// The bitmap has a maximum of 2^16 colors. If the biCompression member of the BITMAPINFOHEADER is BI_RGB, the bmiColors member of BITMAPINFO is
- /// NULL. Each WORD in the bitmap array represents a single pixel. The relative intensities of red, green, and blue are represented with five bits
- /// for each color component. The value for blue is in the least significant five bits, followed by five bits each for green and red. The most
- /// significant bit is not used. The bmiColors color table is used for optimizing colors used on palette-based devices, and must contain the number
- /// of entries specified by the biClrUsed member of the BITMAPINFOHEADER.
+ /// The bitmap has a maximum of 2^16 colors. If the biCompression member of the BITMAPINFOHEADER is BI_RGB, the bmiColors member
+ /// of BITMAPINFO is NULL. Each WORD in the bitmap array represents a single pixel. The relative intensities of red, green, and
+ /// blue are represented with five bits for each color component. The value for blue is in the least significant five bits,
+ /// followed by five bits each for green and red. The most significant bit is not used. The bmiColors color table is used for
+ /// optimizing colors used on palette-based devices, and must contain the number of entries specified by the biClrUsed member of
+ /// the BITMAPINFOHEADER.
///
- /// If the biCompression member of the BITMAPINFOHEADER is BI_BITFIELDS, the bmiColors member contains three DWORD color masks that specify the red,
- /// green, and blue components, respectively, of each pixel. Each WORD in the bitmap array represents a single pixel.
+ /// If the biCompression member of the BITMAPINFOHEADER is BI_BITFIELDS, the bmiColors member contains three DWORD color masks
+ /// that specify the red, green, and blue components, respectively, of each pixel. Each WORD in the bitmap array represents a
+ /// single pixel.
///
///
- /// When the biCompression member is BI_BITFIELDS, bits set in each DWORD mask must be contiguous and should not overlap the bits of another mask.
- /// All the bits in the pixel do not have to be used.
+ /// When the biCompression member is BI_BITFIELDS, bits set in each DWORD mask must be contiguous and should not overlap the
+ /// bits of another mask. All the bits in the pixel do not have to be used.
///
///
///
/// -
/// 24
///
- /// The bitmap has a maximum of 2^24 colors, and the bmiColors member of BITMAPINFO is NULL. Each 3-byte triplet in the bitmap array represents the
- /// relative intensities of blue, green, and red, respectively, for a pixel. The bmiColors color table is used for optimizing colors used on
- /// palette-based devices, and must contain the number of entries specified by the biClrUsed member of the BITMAPINFOHEADER.
+ /// The bitmap has a maximum of 2^24 colors, and the bmiColors member of BITMAPINFO is NULL. Each 3-byte triplet in the bitmap
+ /// array represents the relative intensities of blue, green, and red, respectively, for a pixel. The bmiColors color table is
+ /// used for optimizing colors used on palette-based devices, and must contain the number of entries specified by the biClrUsed
+ /// member of the BITMAPINFOHEADER.
///
///
/// -
/// 32
///
- /// The bitmap has a maximum of 2^32 colors. If the biCompression member of the BITMAPINFOHEADER is BI_RGB, the bmiColors member of BITMAPINFO is
- /// NULL. Each DWORD in the bitmap array represents the relative intensities of blue, green, and red for a pixel. The value for blue is in the least
- /// significant 8 bits, followed by 8 bits each for green and red. The high byte in each DWORD is not used. The bmiColors color table is used for
- /// optimizing colors used on palette-based devices, and must contain the number of entries specified by the biClrUsed member of the BITMAPINFOHEADER.
+ /// The bitmap has a maximum of 2^32 colors. If the biCompression member of the BITMAPINFOHEADER is BI_RGB, the bmiColors member
+ /// of BITMAPINFO is NULL. Each DWORD in the bitmap array represents the relative intensities of blue, green, and red for a
+ /// pixel. The value for blue is in the least significant 8 bits, followed by 8 bits each for green and red. The high byte in
+ /// each DWORD is not used. The bmiColors color table is used for optimizing colors used on palette-based devices, and must
+ /// contain the number of entries specified by the biClrUsed member of the BITMAPINFOHEADER.
///
- /// If the biCompression member of the BITMAPINFOHEADER is BI_BITFIELDS, the bmiColors member contains three DWORD color masks that specify the red,
- /// green, and blue components, respectively, of each pixel. Each DWORD in the bitmap array represents a single pixel.
+ /// If the biCompression member of the BITMAPINFOHEADER is BI_BITFIELDS, the bmiColors member contains three DWORD color masks
+ /// that specify the red, green, and blue components, respectively, of each pixel. Each DWORD in the bitmap array represents a
+ /// single pixel.
///
///
- /// When the biCompression member is BI_BITFIELDS, bits set in each DWORD mask must be contiguous and should not overlap the bits of another mask.
- /// All the bits in the pixel do not need to be used.
+ /// When the biCompression member is BI_BITFIELDS, bits set in each DWORD mask must be contiguous and should not overlap the
+ /// bits of another mask. All the bits in the pixel do not need to be used.
///
///
///
@@ -226,14 +262,14 @@ namespace Vanara.PInvoke
public BitmapCompressionMode biCompression;
///
- /// The size, in bytes, of the image. This may be set to zero for BI_RGB bitmaps. If biCompression is BI_JPEG or BI_PNG, biSizeImage indicates the
- /// size of the JPEG or PNG image buffer, respectively.
+ /// The size, in bytes, of the image. This may be set to zero for BI_RGB bitmaps. If biCompression is BI_JPEG or BI_PNG,
+ /// biSizeImage indicates the size of the JPEG or PNG image buffer, respectively.
///
public uint biSizeImage;
///
- /// The horizontal resolution, in pixels-per-meter, of the target device for the bitmap. An application can use this value to select a bitmap from a
- /// resource group that best matches the characteristics of the current device.
+ /// The horizontal resolution, in pixels-per-meter, of the target device for the bitmap. An application can use this value to
+ /// select a bitmap from a resource group that best matches the characteristics of the current device.
///
public int biXPelsPerMeter;
@@ -241,21 +277,24 @@ namespace Vanara.PInvoke
public int biYPelsPerMeter;
///
- /// The number of color indexes in the color table that are actually used by the bitmap. If this value is zero, the bitmap uses the maximum number of
- /// colors corresponding to the value of the biBitCount member for the compression mode specified by biCompression.
+ /// The number of color indexes in the color table that are actually used by the bitmap. If this value is zero, the bitmap uses
+ /// the maximum number of colors corresponding to the value of the biBitCount member for the compression mode specified by biCompression.
///
- /// If biClrUsed is nonzero and the biBitCount member is less than 16, the biClrUsed member specifies the actual number of colors the graphics engine
- /// or device driver accesses. If biBitCount is 16 or greater, the biClrUsed member specifies the size of the color table used to optimize
- /// performance of the system color palettes. If biBitCount equals 16 or 32, the optimal color palette starts immediately following the three DWORD masks.
+ /// If biClrUsed is nonzero and the biBitCount member is less than 16, the biClrUsed member specifies the actual number of
+ /// colors the graphics engine or device driver accesses. If biBitCount is 16 or greater, the biClrUsed member specifies the
+ /// size of the color table used to optimize performance of the system color palettes. If biBitCount equals 16 or 32, the
+ /// optimal color palette starts immediately following the three DWORD masks.
///
///
- /// When the bitmap array immediately follows the BITMAPINFO structure, it is a packed bitmap. Packed bitmaps are referenced by a single pointer.
- /// Packed bitmaps require that the biClrUsed member must be either zero or the actual size of the color table.
+ /// When the bitmap array immediately follows the BITMAPINFO structure, it is a packed bitmap. Packed bitmaps are referenced by
+ /// a single pointer. Packed bitmaps require that the biClrUsed member must be either zero or the actual size of the color table.
///
///
public uint biClrUsed;
- /// The number of color indexes that are required for displaying the bitmap. If this value is zero, all colors are required.
+ ///
+ /// The number of color indexes that are required for displaying the bitmap. If this value is zero, all colors are required.
+ ///
public uint biClrImportant;
/// Initializes a new instance of the structure.
@@ -273,47 +312,105 @@ namespace Vanara.PInvoke
biCompression = BitmapCompressionMode.BI_RGB;
biSizeImage = 0; // (uint)width * (uint)height * bitCount / 8;
}
+
+ /// Creates a structure from the information in a bitmap handle.
+ /// The handle to a bitmap.
+ ///
+ /// A structure with all the information the bitmap handle. If the specified bitmap is less than 24bpp, the value is set to the
+ /// number of structures that must be allocated.
+ ///
+ public static BITMAPINFOHEADER FromHBITMAP(in HBITMAP hBmp)
+ {
+ // Retrieve the bitmap color format, width, and height.
+ var bmp = GetObject(hBmp);
+
+ // Convert the color format to a count of bits.
+ var cClrBits = (ushort)(bmp.bmPlanes * bmp.bmBitsPixel) switch
+ {
+ 1 => 1,
+ <= 4 => 4,
+ <= 8 => 8,
+ <= 16 => 16,
+ <= 24 => 24,
+ _ => 32,
+ };
+
+ // Initialize the fields in the BITMAPINFO structure.
+ return new BITMAPINFOHEADER
+ {
+ biSize = Marshal.SizeOf(typeof(BITMAPINFOHEADER)),
+ biWidth = bmp.bmWidth,
+ biHeight = bmp.bmHeight,
+ biPlanes = bmp.bmPlanes,
+ biBitCount = bmp.bmBitsPixel,
+ // This value is correct, but there is no memory alllocated to hold these bits
+ biClrUsed = cClrBits < 24 ? 1U << cClrBits : 0,
+ // If the bitmap is not compressed, set the BI_RGB flag.
+ biCompression = BitmapCompressionMode.BI_RGB,
+ // Compute the number of bytes in the array of color indices and store the result in biSizeImage. The width must be uint
+ // aligned unless the bitmap is RLE compressed.
+ biSizeImage = (uint)(((bmp.bmWidth * cClrBits + 31) & ~31) / 8 * bmp.bmHeight),
+ // Set biClrImportant to 0, indicating that all of the device colors are important.
+ biClrImportant = 0
+ };
+ }
+
+ /// Gets the default value for this structure with size fields set appropriately.
+ public static readonly BITMAPINFOHEADER Default = new BITMAPINFOHEADER { biSize = Marshal.SizeOf(typeof(BITMAPINFOHEADER)) };
}
///
- /// The DIBSECTION structure contains information about a DIB created by calling the CreateDIBSection function. A DIBSECTION structure includes
- /// information about the bitmap's dimensions, color format, color masks, optional file mapping object, and optional bit values storage offset. An
- /// application can obtain a filled-in DIBSECTION structure for a given DIB by calling the GetObject function.
+ /// The DIBSECTION structure contains information about a DIB created by calling the CreateDIBSection function. A DIBSECTION
+ /// structure includes information about the bitmap's dimensions, color format, color masks, optional file mapping object, and
+ /// optional bit values storage offset. An application can obtain a filled-in DIBSECTION structure for a given DIB by calling the
+ /// GetObject function.
///
[StructLayout(LayoutKind.Sequential)]
[PInvokeData("Wingdi.h", MSDNShortId = "dd183567")]
public struct DIBSECTION
{
///
- /// A BITMAP data structure that contains information about the DIB: its type, its dimensions, its color capacities, and a pointer to its bit values.
+ /// A BITMAP data structure that contains information about the DIB: its type, its dimensions, its color capacities, and a
+ /// pointer to its bit values.
///
public BITMAP dsBm;
+
/// A BITMAPINFOHEADER structure that contains information about the color format of the DIB.
public BITMAPINFOHEADER dsBmih;
+
private uint dsBitField1;
private uint dsBitField2;
private uint dsBitField3;
+
///
- /// The DSH sectionContains a handle to the file mapping object that the CreateDIBSection function used to create the DIB. If CreateDIBSection was
- /// called with a NULL value for its hSection parameter, causing the system to allocate memory for the bitmap, the dshSection member will be NULL.
+ /// The DSH sectionContains a handle to the file mapping object that the CreateDIBSection function used to create the DIB. If
+ /// CreateDIBSection was called with a NULL value for its hSection parameter, causing the system to allocate memory for the
+ /// bitmap, the dshSection member will be NULL.
///
public IntPtr dshSection;
+
///
- /// The offset to the bitmap's bit values within the file mapping object referenced by dshSection. If dshSection is NULL, the dsOffset value has no meaning.
+ /// The offset to the bitmap's bit values within the file mapping object referenced by dshSection. If dshSection is NULL, the
+ /// dsOffset value has no meaning.
///
public uint dsOffset;
///
- /// Specifies three color masks for the DIB. This field is only valid when the BitCount member of the BITMAPINFOHEADER structure has a value greater
- /// than 8. Each color mask indicates the bits that are used to encode one of the three color channels (red, green, and blue).
+ /// Specifies three color masks for the DIB. This field is only valid when the BitCount member of the BITMAPINFOHEADER structure
+ /// has a value greater than 8. Each color mask indicates the bits that are used to encode one of the three color channels (red,
+ /// green, and blue).
///
#pragma warning disable IDE1006 // Naming Styles
+
public uint[] dsBitFields
#pragma warning restore IDE1006 // Naming Styles
{
get => new[] { dsBitField1, dsBitField2, dsBitField3 };
set { dsBitField1 = value[0]; dsBitField2 = value[1]; dsBitField3 = value[2]; }
}
+
+ /// Gets the default value for this structure with size fields set appropriately.
+ public static readonly DIBSECTION Default = new DIBSECTION { dsBmih = BITMAPINFOHEADER.Default };
}
/// The RGBQUAD structure describes a color consisting of relative intensities of red, green, and blue.
@@ -341,6 +438,10 @@ namespace Vanara.PInvoke
set { rgbReserved = value.A; rgbBlue = value.B; rgbGreen = value.G; rgbRed = value.R; }
}
+ /// Gets a value indicating whether any transparency is defined.
+ /// if this value is transparent; otherwise, .
+ public bool IsTransparent => rgbReserved == 0;
+
/// Performs an implicit conversion from to .
/// The c.
/// The result of the conversion.