using System;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using System.Security;
using System.Text;
using Vanara.InteropServices;
using static Vanara.PInvoke.AdvApi32;
using static Vanara.PInvoke.ComCtl32;
using static Vanara.PInvoke.Kernel32;
using static Vanara.PInvoke.Ole32;
using static Vanara.PInvoke.ShlwApi;

// ReSharper disable MemberCanBePrivate.Global
// ReSharper disable UnusedParameter.Global
// ReSharper disable UnusedMember.Global
// ReSharper disable FieldCanBeMadeReadOnly.Global
// ReSharper disable InconsistentNaming
// ReSharper disable MemberHidesStaticFromOuterClass
// ReSharper disable UnusedMethodReturnValue.Global

namespace Vanara.PInvoke
{
	[SuppressUnmanagedCodeSecurity]
	public static partial class Shell32
	{
		// Defined in wingdi.h
		private const int LF_FACESIZE = 32;

		/// <summary>A flag that controls how PifMgr_CloseProperties operates.</summary>
		[PInvokeData("shlobj_core.h", MSDNShortId = "fd50d4f8-87c8-4162-9e88-3c8592b929fa")]
		public enum CLOSEPROPS
		{
			/// <summary>No options specified.</summary>
			CLOSEPROPS_NONE = 0x0000,
			/// <summary>Abandon cached data.</summary>
			CLOSEPROPS_DISCARD = 0x0001
		}

		/// <summary>Used for options in SHOpenFolderAndSelectItems.</summary>
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762232")]
		public enum OFASI : uint
		{
			/// <summary>No options.</summary>
			OFASI_NONE = 0,

			/// <summary>
			/// Select an item and put its name in edit mode. This flag can only be used when a single item is being selected. For multiple item selections, it
			/// is ignored.
			/// </summary>
			OFASI_EDIT = 1,

			/// <summary>
			/// Select the item or items on the desktop rather than in a Windows Explorer window. Note that if the desktop is obscured behind open windows, it
			/// will not be made visible.
			/// </summary>
			OFASI_OPENDESKTOP = 2
		}

		/// <summary>A flag that controls how PifMgr_OpenProperties operates.</summary>
		[PInvokeData("shlobj_core.h", MSDNShortId = "0bc11528-7278-4765-b3cb-671ba82c9155")]
		public enum OPENPROPS
		{
			/// <summary>No options specified.</summary>
			OPENPROPS_NONE = 0x0000,
			/// <summary>
			/// Ignore any existing .pif files and get the properties from win.ini or _Default.pif. This flag is ignored on Windows NT,
			/// Windows 2000, and Windows XP.
			/// </summary>
			OPENPROPS_INHIBITPIF = 0x8000
		}

		/// <summary>Return values for PathCleanupSpec.</summary>
		[PInvokeData("shlobj_core.h", MSDNShortId = "593fd2b7-44ae-4309-a185-97e42f3cc0fa")]
		[Flags]
		public enum PCS : uint
		{
			/// <summary>The cleaned path is not a valid file name. This flag is always returned in conjunction with PCS_PATHTOOLONG.</summary>
			PCS_FATAL = 0x80000000,
			/// <summary>Replaced one or more invalid characters.</summary>
			PCS_REPLACEDCHAR = 0x00000001,
			/// <summary>Removed one or more invalid characters.</summary>
			PCS_REMOVEDCHAR = 0x00000002,
			/// <summary>The returned path is truncated.</summary>
			PCS_TRUNCATED = 0x00000004,
			/// <summary>
			/// The function failed because the input path specified at is too long to allow the formation of a valid file name from . When this
			/// flag is returned, it is always accompanied by the PCS_FATAL flag.
			/// </summary>
			PCS_PATHTOOLONG = 0x00000008,
		}

		/// <summary>Flags for PathResolve.</summary>
		[PInvokeData("shlobj_core.h", MSDNShortId = "84bf0b56-513f-4ac6-b2cf-11f0c471da1e")]
		[Flags]
		public enum PRF
		{
			/// <summary>Return TRUE if the file's existence is verified; otherwise FALSE.</summary>
			PRF_VERIFYEXISTS = 0x0001,
			/// <summary>Look for the specified path with the following extensions appended: .pif, .com, .bat, .cmd, .lnk, and .exe.</summary>
			PRF_TRYPROGRAMEXTENSIONS = 0x0002 | PRF_VERIFYEXISTS,
			/// <summary>Look first in the directory or directories specified by dirs.</summary>
			PRF_FIRSTDIRDEF = 0x0004,
			/// <summary>Ignore .lnk files.</summary>
			PRF_DONTFINDLNK = 0x0008,
			/// <summary>Require an absolute (full) path.</summary>
			PRF_REQUIREABSOLUTE = 0x0010
		}

		/// <summary>Flags that direct the handling of the item from which you're retrieving the info tip text. This value is commonly zero (QITIPF_DEFAULT).</summary>
		[PInvokeData("Shlobj.h", MSDNShortId = "bb761357")]
		public enum QITIP
		{
			/// <summary>No special handling.</summary>
			QITIPF_DEFAULT = 0x00000000,

			/// <summary>Provide the name of the item in ppwszTip rather than the info tip text.</summary>
			QITIPF_USENAME = 0x00000001,

			/// <summary>If the item is a shortcut, retrieve the info tip text of the shortcut rather than its target.</summary>
			QITIPF_LINKNOTARGET = 0x00000002,

			/// <summary>If the item is a shortcut, retrieve the info tip text of the shortcut's target.</summary>
			QITIPF_LINKUSETARGET = 0x00000004,

			/// <summary>Search the entire namespace for the information. This value can result in a delayed response time.</summary>
			QITIPF_USESLOWTIP = 0x00000008, // Flag says it's OK to take a long time generating tip

			/// <summary><c>Windows Vista and later.</c> Put the info tip on a single line.</summary>
			QITIPF_SINGLELINE = 0x00000010,
		}

		/// <summary><para>Indicates whether to enable or disable Async Register and Deregister for SHChangeNotifyRegisterThread.</para></summary>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/ne-shlobj_core-scnrt_status
		// typedef enum SCNRT_STATUS { SCNRT_ENABLE , SCNRT_DISABLE } ;
		[PInvokeData("shlobj_core.h", MSDNShortId = "31fd993b-d8cb-40cc-9f31-15711dba1b10")]
		public enum SCNRT_STATUS
		{
			/// <summary>Enable Async Register and Deregister for SHChangeNotifyRegisterThread.</summary>
			SCNRT_ENABLE,
			/// <summary>Disable Async Register and Deregister for SHChangeNotifyRegisterThread.</summary>
			SCNRT_DISABLE,
		}

		/// <summary>
		/// Indicates the interpretation of the data passed by SHAddToRecentDocs in its pv parameter to identify the item whose usage statistics are being tracked.
		/// </summary>
		[PInvokeData("Shlobj.h", MSDNShortId = "dd378453")]
		public enum SHARD
		{
			/// <summary>
			/// <c>Windows 7 and later.</c> The pv parameter points to a SHARDAPPIDINFO structure that pairs an IShellItem that identifies the item with an
			/// AppUserModelID that associates it with a particular process or application.
			/// </summary>
			SHARD_APPIDINFO = 4,

			/// <summary>
			/// <c>Windows 7 and later.</c> The pv parameter points to a SHARDAPPIDINFOIDLIST structure that pairs an absolute PIDL that identifies the item with
			/// an AppUserModelID that associates it with a particular process or application.
			/// </summary>
			SHARD_APPIDINFOIDLIST = 5,

			/// <summary>
			/// <c>Windows 7 and later.</c> The pv parameter points to a SHARDAPPIDINFOLINK structure that pairs an IShellLink that identifies the item with an
			/// AppUserModelID that associates it with a particular process or application.
			/// </summary>
			SHARD_APPIDINFOLINK = 7,

			/// <summary><c>Windows 7 and later.</c> The pv parameter is an interface pointer to an IShellLink object.</summary>
			SHARD_LINK = 6,

			/// <summary>The pv parameter points to a null-terminated ANSI string with the path and file name of the object.</summary>
			SHARD_PATHA = 2,

			/// <summary>The pv parameter points to a null-terminated Unicode string with the path and file name of the object.</summary>
			SHARD_PATHW = 3,

			/// <summary>The pv parameter points to a PIDL that identifies the document's file object. PIDLs that identify non-file objects are not accepted.</summary>
			SHARD_PIDL = 1,

			/// <summary><c>Windows 7 and later.</c> The pv parameter is an interface pointer to an IShellItem object.</summary>
			SHARD_SHELLITEM = 8
		}

		/// <summary>Events used in SHChangeNotify.</summary>
		[PInvokeData("Shlobj_core.h")]
		[Flags]
		public enum SHCNE : uint
		{
			/// <summary>
			/// The name of a nonfolder item has changed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the
			/// previous PIDL or name of the item. dwItem2 contains the new PIDL or name of the item.
			/// </summary>
			SHCNE_RENAMEITEM = 0x00000001,
			/// <summary>
			/// A nonfolder item has been created. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the item that was
			/// created. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_CREATE = 0x00000002,
			/// <summary>
			/// A nonfolder item has been deleted. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the item that was
			/// deleted. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_DELETE = 0x00000004,
			/// <summary>
			/// A folder has been created. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the folder that was
			/// created. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_MKDIR = 0x00000008,
			/// <summary>
			/// A folder has been removed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the folder that was
			/// removed. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_RMDIR = 0x00000010,
			/// <summary>
			/// Storage media has been inserted into a drive. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the
			/// root of the drive that contains the new media. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_MEDIAINSERTED = 0x00000020,
			/// <summary>
			/// Storage media has been removed from a drive. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the
			/// root of the drive from which the media was removed. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_MEDIAREMOVED = 0x00000040,
			/// <summary>
			/// A drive has been removed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the root of the drive that
			/// was removed. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_DRIVEREMOVED = 0x00000080,
			/// <summary>
			/// A drive has been added. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the root of the drive that
			/// was added. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_DRIVEADD = 0x00000100,
			/// <summary>
			/// A folder on the local computer is being shared via the network. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags.
			/// dwItem1 contains the folder that is being shared. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_NETSHARE = 0x00000200,
			/// <summary>
			/// A folder on the local computer is no longer being shared via the network. SHCNF_IDLIST or SHCNF_PATH must be specified in
			/// uFlags. dwItem1 contains the folder that is no longer being shared. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_NETUNSHARE = 0x00000400,
			/// <summary>
			/// The attributes of an item or folder have changed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains
			/// the item or folder that has changed. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_ATTRIBUTES = 0x00000800,
			/// <summary>
			/// The contents of an existing folder have changed, but the folder still exists and has not been renamed. SHCNF_IDLIST or
			/// SHCNF_PATH must be specified in uFlags. dwItem1 contains the folder that has changed. dwItem2 is not used and should be NULL.
			/// If a folder has been created, deleted, or renamed, use SHCNE_MKDIR, SHCNE_RMDIR, or SHCNE_RENAMEFOLDER, respectively.
			/// </summary>
			SHCNE_UPDATEDIR = 0x00001000,
			/// <summary>
			/// An existing item (a folder or a nonfolder) has changed, but the item still exists and has not been renamed. SHCNF_IDLIST or
			/// SHCNF_PATH must be specified in uFlags. dwItem1 contains the item that has changed. dwItem2 is not used and should be NULL.
			/// If a nonfolder item has been created, deleted, or renamed, use SHCNE_CREATE, SHCNE_DELETE, or SHCNE_RENAMEITEM, respectively, instead.
			/// </summary>
			SHCNE_UPDATEITEM = 0x00002000,
			/// <summary>
			/// The computer has disconnected from a server. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the
			/// server from which the computer was disconnected. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_SERVERDISCONNECT = 0x00004000,
			/// <summary>
			/// An image in the system image list has changed. SHCNF_DWORD must be specified in uFlags. dwItem2 contains the index in the
			/// system image list that has changed. dwItem1 is not used and should be NULL.
			/// </summary>
			SHCNE_UPDATEIMAGE = 0x00008000,
			/// <summary>
			/// A drive has been added. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the root of the drive that
			/// was added. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_DRIVEADDGUI = 0x00010000,
			/// <summary>
			/// The name of a folder has changed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the previous PIDL
			/// or name of the folder. dwItem2 contains the new PIDL or name of the folder.
			/// </summary>
			SHCNE_RENAMEFOLDER = 0x00020000,
			/// <summary>
			/// The amount of free space on a drive has changed. SHCNF_IDLIST or SHCNF_PATH must be specified in uFlags. dwItem1 contains the
			/// root of the drive on which the free space changed. dwItem2 is not used and should be NULL.
			/// </summary>
			SHCNE_FREESPACE = 0x00040000,
			/// <summary>Not currently used.</summary>
			SHCNE_EXTENDED_EVENT = 0x04000000,
			/// <summary>
			/// A file type association has changed. SHCNF_IDLIST must be specified in the uFlags parameter. dwItem1 and dwItem2 are not used
			/// and must be NULL. This event should also be sent for registered protocols.
			/// </summary>
			SHCNE_ASSOCCHANGED = 0x08000000,
			/// <summary>All disk related events.</summary>
			SHCNE_DISKEVENTS = 0x0002381F,
			/// <summary>All global events.</summary>
			SHCNE_GLOBALEVENTS = 0x0C0581E0,
			/// <summary>All events.</summary>
			SHCNE_ALLEVENTS = 0x7FFFFFFF,
			/// <summary>
			/// The presence of this flag indicates that the event was generated by an interrupt. It is stripped out before the clients of
			/// SHCNNotify_ see it.
			/// </summary>
			SHCNE_INTERRUPT = 0x80000000,
		}

		/// <summary>Flags used in SHChangeNotify.</summary>
		[PInvokeData("Shlobj_core.h")]
		[Flags]
		public enum SHCNF : uint
		{
			/// <summary>
			/// dwItem1 and dwItem2 are the addresses of ITEMIDLIST structures that represent the item(s) affected by the change. Each
			/// ITEMIDLIST must be relative to the desktop folder.
			/// </summary>
			SHCNF_IDLIST = 0x0000,
			/// <summary>
			/// dwItem1 and dwItem2 are the addresses of null-terminated strings of maximum length MAX_PATH that contain the full path names
			/// of the items affected by the change.
			/// </summary>
			SHCNF_PATHA = 0x0001,
			/// <summary>
			/// dwItem1 and dwItem2 are the addresses of null-terminated strings that represent the friendly names of the printer(s) affected
			/// by the change.
			/// </summary>
			SHCNF_PRINTERA = 0x0002,
			/// <summary>The dwItem1 and dwItem2 parameters are DWORD values.</summary>
			SHCNF_DWORD = 0x0003,
			/// <summary>
			/// dwItem1 and dwItem2 are the addresses of null-terminated strings of maximum length MAX_PATH that contain the full path names
			/// of the items affected by the change.
			/// </summary>
			SHCNF_PATHW = 0x0005,
			/// <summary>
			/// dwItem1 and dwItem2 are the addresses of null-terminated strings that represent the friendly names of the printer(s) affected
			/// by the change.
			/// </summary>
			SHCNF_PRINTERW = 0x0006,
			/// <summary>Indicates that a type is defined.</summary>
			SHCNF_TYPE = 0x00FF,
			/// <summary>
			/// The function should not return until the notification has been delivered to all affected components. As this flag modifies
			/// other data-type flags, it cannot be used by itself.
			/// </summary>
			SHCNF_FLUSH = 0x1000,
			/// <summary>
			/// The function should begin delivering notifications to all affected components but should return as soon as the notification
			/// process has begun. As this flag modifies other data-type flags, it cannot by used by itself. This flag includes SHCNF_FLUSH.
			/// </summary>
			SHCNF_FLUSHNOWAIT = 0x3000,
			/// <summary>Notify clients registered for all children.</summary>
			SHCNF_NOTIFYRECURSIVE = 0x10000
		}

		/// <summary>Receives a value that determines what type the item is in <see cref="SHDESCRIPTIONID"/>.</summary>
		[PInvokeData("Shlobj_core.h", MSDNShortId = "bb759775")]
		public enum SHDID
		{
			/// <summary>The item is a registered item on the desktop.</summary>
			SHDID_ROOT_REGITEM = 1,

			/// <summary>The item is a file.</summary>
			SHDID_FS_FILE = 2,

			/// <summary>The item is a folder.</summary>
			SHDID_FS_DIRECTORY = 3,

			/// <summary>The item is an unidentified item in the file system.</summary>
			SHDID_FS_OTHER = 4,

			/// <summary>The item is a 3.5-inch floppy drive.</summary>
			SHDID_COMPUTER_DRIVE35 = 5,

			/// <summary>The item is a 5.25-inch floppy drive.</summary>
			SHDID_COMPUTER_DRIVE525 = 6,

			/// <summary>The item is a removable disk.</summary>
			SHDID_COMPUTER_REMOVABLE = 7,

			/// <summary>The item is a fixed hard disk.</summary>
			SHDID_COMPUTER_FIXED = 8,

			/// <summary>The item is a drive that is mapped to a network share.</summary>
			SHDID_COMPUTER_NETDRIVE = 9,

			/// <summary>The item is a CD-ROM drive.</summary>
			SHDID_COMPUTER_CDROM = 10,

			/// <summary>The item is a RAM disk.</summary>
			SHDID_COMPUTER_RAMDISK = 11,

			/// <summary>The item is an unidentified system device.</summary>
			SHDID_COMPUTER_OTHER = 12,

			/// <summary>The item is a network domain.</summary>
			SHDID_NET_DOMAIN = 13,

			/// <summary>The item is a network server.</summary>
			SHDID_NET_SERVER = 14,

			/// <summary>The item is a network share.</summary>
			SHDID_NET_SHARE = 15,

			/// <summary>Not currently used.</summary>
			SHDID_NET_RESTOFNET = 16,

			/// <summary>The item is an unidentified network resource.</summary>
			SHDID_NET_OTHER = 17,

			/// <summary>Windows XP and later. Not currently used.</summary>
			SHDID_COMPUTER_IMAGING = 18,

			/// <summary>Windows XP and later. Not currently used.</summary>
			SHDID_COMPUTER_AUDIO = 19,

			/// <summary>Windows XP and later. The item is the system shared documents folder.</summary>
			SHDID_COMPUTER_SHAREDDOCS = 20,

			/// <summary>Windows Vista and later. The item is a mobile device, such as a personal digital assistant (PDA).</summary>
			SHDID_MOBILE_DEVICE = 21,
		}

		/// <summary>The format in which the data is being requested.</summary>
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762174")]
		public enum SHGetDataFormat
		{
			/// <summary>Format used for file system objects. The pv parameter is the address of a WIN32_FIND_DATA structure.</summary>
			[CorrespondingType(typeof(WIN32_FIND_DATA), CorrepsondingAction.Get)]
			SHGDFIL_FINDDATA = 1,

			/// <summary>Format used for network resources. The pv parameter is the address of a NETRESOURCE structure.</summary>
			// TODO: Define NETRESOURCE (https://msdn.microsoft.com/en-us/library/windows/desktop/aa385353(v=vs.85).aspx)
			//[CorrespondingType(typeof(NETRESOURCE), CorrepsondingAction.Get)]
			SHGDFIL_NETRESOURCE = 2,

			/// <summary>Version 4.71. Format used for network resources. The pv parameter is the address of an SHDESCRIPTIONID structure.</summary>
			[CorrespondingType(typeof(SHDESCRIPTIONID), CorrepsondingAction.Get)]
			SHGDFIL_DESCRIPTIONID = 3
		}

		/// <summary>Flags used by <see cref="SHGetFolderPath"/>.</summary>
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762181")]
		public enum SHGFP
		{
			/// <summary>Retrieve the folder's current path.</summary>
			SHGFP_TYPE_CURRENT = 0,

			/// <summary>Retrieve the folder's default path.</summary>
			SHGFP_TYPE_DEFAULT = 1
		}

		/// <summary>Used by SHGetImageList.</summary>
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762185")]
		public enum SHIL
		{
			/// <summary>
			/// The image size is normally 32x32 pixels. However, if the Use large icons option is selected from the Effects section of the Appearance tab in
			/// Display Properties, the image is 48x48 pixels.
			/// </summary>
			SHIL_LARGE = 0,

			/// <summary>These images are the Shell standard small icon size of 16x16, but the size can be customized by the user.</summary>
			SHIL_SMALL = 1,

			/// <summary>These images are the Shell standard extra-large icon size. This is typically 48x48, but the size can be customized by the user.</summary>
			SHIL_EXTRALARGE = 2,

			/// <summary>These images are the size specified by GetSystemMetrics called with SM_CXSMICON and GetSystemMetrics called with SM_CYSMICON.</summary>
			SHIL_SYSSMALL = 3,

			/// <summary>Windows Vista and later. The image is normally 256x256 pixels.</summary>
			SHIL_JUMBO = 4,
		}

		/// <summary>
		/// CSIDL (constant special item ID list) values provide a unique system-independent way to identify special folders used frequently by applications, but
		/// which may not have the same name or location on any given system. For example, the system folder may be "C:\Windows" on one system and "C:\Winnt" on
		/// another. These constants are defined in Shlobj.h.
		/// </summary>
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762494")]
		internal enum CSIDL
		{
			CSIDL_ADMINTOOLS = 0x0030,
			CSIDL_CDBURN_AREA = 0x003b,
			CSIDL_COMMON_ADMINTOOLS = 0x002f,
			CSIDL_COMMON_DESKTOPDIRECTORY = 0x0019,
			CSIDL_COMMON_DOCUMENTS = 0x002e,
			CSIDL_COMMON_MUSIC = 0x0035,
			CSIDL_COMMON_OEM_LINKS = 0x003a,
			CSIDL_COMMON_PICTURES = 0x0036,
			CSIDL_COMMON_PROGRAMS = 0X0017,
			CSIDL_COMMON_STARTMENU = 0x0016,
			CSIDL_COMMON_STARTUP = 0x0018,
			CSIDL_COMMON_TEMPLATES = 0x002d,
			CSIDL_COMMON_VIDEO = 0x0037,
			CSIDL_FLAG_CREATE = 0x8000, // force folder creation in SHGetFolderPath
			CSIDL_FLAG_DONT_VERIFY = 0x4000, // return an unverified folder path
			CSIDL_FONTS = 0x0014, // windows\fonts
			CSIDL_MYVIDEO = 0x000e, // "My Videos" folder
			CSIDL_NETHOOD = 0x0013, // %APPDATA%\Microsoft\Windows\Network Shortcuts
			CSIDL_PRINTHOOD = 0x001b, // %APPDATA%\Microsoft\Windows\Printer Shortcuts
			CSIDL_PROFILE = 0x0028, // %USERPROFILE% (%SystemDrive%\Users\%USERNAME%)
			CSIDL_PROGRAM_FILES_COMMONX86 = 0x002c, // x86 Program Files\Common on RISC
			CSIDL_PROGRAM_FILESX86 = 0x002a, // x86 C:\Program Files on RISC
			CSIDL_RESOURCES = 0x0038, // %windir%\Resources
			CSIDL_RESOURCES_LOCALIZED = 0x0039, // %windir%\resources\0409 (code page)
			CSIDL_SYSTEMX86 = 0x0029, // %windir%\system32
			CSIDL_WINDOWS = 0x0024, // GetWindowsDirectory()
		}

		/// <summary>
		/// <para>Retrieves the value for a given property key using the file association information provided by the Namespace Extensions.</para>
		/// </summary>
		/// <param name="psf">
		/// <para>Type: <c>IShellFolder*</c></para>
		/// <para>A pointer to the shell folder for which the details of the property key of the file association are being retrieved.</para>
		/// </param>
		/// <param name="pidl">
		/// <para>Type: <c>PCUITEMID_CHILD</c></para>
		/// <para>The PIDL of the child item for which the file associations are being requested.</para>
		/// </param>
		/// <param name="pkey">
		/// <para>Type: <c>PROPERTYKEY*</c></para>
		/// <para>A pointer to the property key that is being retrieved.</para>
		/// </param>
		/// <param name="pv">
		/// <para>Type: <c>VARIANT*</c></para>
		/// <para>When this function returns, contains the details of the given property key.</para>
		/// </param>
		/// <param name="pfFoundPropKey">
		/// <para>Type: <c>BOOL*</c></para>
		/// <para>When this function returns, contains a flag that is <c>TRUE</c> if the property key was found, otherwise <c>FALSE</c>.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HRESULT</c></para>
		/// <para>If this function succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// This function is to be used only by implementers of IShellFolder Namespace Extensions. Other calling applications should use
		/// IShellFolder2::GetDetailsEx to get a value for a PROPERTYKEY. This function is to be used by implementers of <c>IShellFolder</c>
		/// Namespace Extensions.
		/// </para>
		/// <para>The provided namespace extension must support the use of this API in one of the following three ways.</para>
		/// <list type="number">
		/// <item>
		/// If the provided Namespace Extensions supports retrieving an IQueryAssociations interface for the item by implementing
		/// IShellFolder::GetUIObjectOf(..., <c>IID_IQueryAssociations</c>, ...), then <c>AssocGetDetailsOfPropKey</c> will use the provided
		/// file associations API to retrieve the value for the property key.
		/// </item>
		/// <item>
		/// If the provided namespace extension returns <c>SFGAO_FILESYSTEM</c> for the item from IShellFolder::GetAttributesOf and provides
		/// a parsing name for the item, then <c>AssocGetDetailsOfPropKey</c> will use the standard file system associations to retrieve the
		/// value for the property key.
		/// </item>
		/// <item>
		/// If the provided namespace extension returns <c>SFGAO_FOLDER</c> | <c>SFGAO_BROWSABLE</c> for the item from
		/// IShellFolder::GetAttributesOf, then <c>AssocGetDetailsOfPropKey</c> will use the file association for folders (
		/// <c>ASSOCCLASS_FOLDER</c>) to retrieve the value for the property key.
		/// </item>
		/// </list>
		/// <para>
		/// If the ShellFolder being implemented contains items that are extensible through the file associations mechanism, then you can use
		/// this function to retrieve
		/// </para>
		/// <para>PropertyKeys</para>
		/// <para>
		/// that are declared for a given file association. For example, if a given Shell folder drives a details pane and you want the
		/// properties displayed in that pane to be governed by third party file name extensions, then you can use this function to return
		/// </para>
		/// <para>PKEY_PropList_PreviewDetails</para>
		/// <para>
		/// . This key has a value that is declared in the registry for that file name extension with a semicolon delimited list of
		/// properties. There is a list of file name extension defined properties in the registry. This list includes but is not limited to
		/// the following:
		/// </para>
		/// <list type="bullet">
		/// <item><c>PKEY_PropList_PreviewDetails</c></item>
		/// <item><c>PKEY_PropList_PreviewTitle</c></item>
		/// <item><c>PKEY_PropList_FullDetails</c></item>
		/// <item><c>PKEY_PropList_TileInfo</c></item>
		/// <item><c>PKEY_PropList_ExtendedTileInfo</c></item>
		/// <item><c>PKEY_PropList_InfoTip</c></item>
		/// <item><c>PKEY_PropList_QuickTip</c></item>
		/// <item><c>PKEY_PropList_FileOperationPrompt</c></item>
		/// <item><c>PKEY_PropList_ConflictPrompt</c></item>
		/// <item><c>PKEY_PropList_SetDefaultsFor</c></item>
		/// <item><c>PKEY_PropList_NonPersonal</c></item>
		/// <item><c>PKEY_NewMenuPreferredTypes</c></item>
		/// <item><c>PKEY_NewMenuAllowedTypes</c></item>
		/// </list>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-assocgetdetailsofpropkey
		// SHSTDAPI AssocGetDetailsOfPropKey( IShellFolder *psf, PCUITEMID_CHILD pidl, const PROPERTYKEY *pkey, VARIANT *pv, BOOL *pfFoundPropKey );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "f13af5f4-1b6a-419c-a042-e05c9ec51d02")]
		public static extern HRESULT AssocGetDetailsOfPropKey(IShellFolder psf, PIDL pidl, ref PROPERTYKEY pkey, ref object pv, [MarshalAs(UnmanagedType.Bool)] ref bool pfFoundPropKey);

		/// <summary><para>[This function is available through Windows XP Service Pack 2 (SP2) and Windows Server 2003. It might be altered or unavailable in subsequent versions of Windows.]</para><para>Creates an <c>Open</c> dialog box so that the user can specify the drive, directory, and name of a file to open.</para></summary><param name="hwnd"><para>Type: <c>HWND</c></para><para>A handle to the window that owns the dialog box. This member can be any valid window handle, or it can be <c>NULL</c> if the dialog box has no owner.</para></param><param name="pszFilePath"><para>Type: <c>PWSTR</c></para><para>A null-terminated Unicode string that contains a file name used to initialize the File Name edit control. This string corresponds to the OPENFILENAME structure&#39;s <c>lpstrFile</c> member and is used in exactly the same way.</para></param><param name="cchFilePath"><para>Type: <c>UINT</c></para><para>The number of characters in , including the terminating null character.</para></param><param name="pszWorkingDir"><para>Type: <c>PCWSTR</c></para><para>The fully qualified file path of the initial directory. This string corresponds to the OPENFILENAME structure&#39;s <c>lpstrInitialDir</c> member and is used in exactly the same way.</para></param><param name="pszDefExt"><para>Type: <c>PCWSTR</c></para><para>A null-terminated Unicode string that contains the default file name extension. This extension is added to if the user does not specify an extension. The string should not contain any &#39;.&#39; characters. If this string is <c>NULL</c> and the user fails to type an extension, no extension is appended.</para></param><param name="pszFilters"><para>Type: <c>PCWSTR</c></para><para>A null-terminated Unicode string that defines the filter. This string corresponds to the OPENFILENAME structure&#39;s <c>lpstrFilter</c> member and is used in exactly the same way.</para></param><param name="pszTitle"><para>TBD</para></param><returns><para>Type: <c>BOOL</c></para><para>If the user specifies a file name and clicks <c>OK</c>, the return value is <c>TRUE</c>. The buffer that points to contains the full path and file name that the user specifies. If the user cancels or closes the <c>Open</c> dialog box or an error occurs, the return value is <c>FALSE</c>.</para></returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj/nf-shlobj-getfilenamefrombrowse
		// BOOL GetFileNameFromBrowse( HWND hwnd, PWSTR pszFilePath, UINT cchFilePath, PCWSTR pszWorkingDir, PCWSTR pszDefExt, PCWSTR pszFilters, PCWSTR pszTitle );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj.h", MSDNShortId = "1f075051-18c8-4ec2-b010-f983ba2d3303")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool GetFileNameFromBrowse(HandleRef hwnd, [MarshalAs(UnmanagedType.LPWStr)] string pszFilePath, uint cchFilePath, [MarshalAs(UnmanagedType.LPWStr)] string pszWorkingDir, [MarshalAs(UnmanagedType.LPWStr)] string pszDefExt, [MarshalAs(UnmanagedType.LPWStr)] string pszFilters, [MarshalAs(UnmanagedType.LPWStr)] string pszTitle);

		/// <summary>
		/// <para>Appends or prepends an SHITEMID structure to an ITEMIDLIST structure.</para>
		/// </summary>
		/// <param name="pidl">
		/// <para>Type: <c>PIDLIST_RELATIVE</c></para>
		/// <para>A pointer to an ITEMIDLIST structure. When the function returns, the SHITEMID structure specified by is appended or prepended.</para>
		/// </param>
		/// <param name="pmkid">
		/// <para>Type: <c>LPSHITEMID</c></para>
		/// <para>A pointer to a SHITEMID structure to be appended or prepended to .</para>
		/// </param>
		/// <param name="fAppend">
		/// <para>Type: <c>BOOL</c></para>
		/// <para>Value that is set to <c>TRUE</c> to append to . Set this value to <c>FALSE</c> to prepend to .</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>PIDLIST_RELATIVE</c></para>
		/// <para>Returns the ITEMIDLIST structure specified by , with appended or prepended. Returns <c>NULL</c> on failure.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-ilappendid
		// PIDLIST_RELATIVE ILAppendID( PIDLIST_RELATIVE pidl, LPCSHITEMID pmkid, BOOL fAppend );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "d1bb5993-fe23-42d4-a2c5-8e54e6e37d09")]
		public static extern IntPtr ILAppendID(IntPtr pidl, ref SHITEMID pmkid, [MarshalAs(UnmanagedType.Bool)] bool fAppend);

		/// <summary><para>Determines whether a specified ITEMIDLIST structure is the child of another <c>ITEMIDLIST</c> structure.</para></summary><param name="pidlParent"><para>Type: <c>PCIDLIST_ABSOLUTE</c></para><para>A pointer to the parent ITEMIDLIST structure.</para></param><param name="pidlChild"><para>Type: <c>PCIDLIST_ABSOLUTE</c></para><para>A pointer to the child ITEMIDLIST structure.</para></param><returns><para>Type: <c>PUIDLIST_RELATIVE</c></para><para>Returns a pointer to the child&#39;s simple ITEMIDLIST structure if is a child of . The returned structure consists of , minus the SHITEMID structures that make up . Returns <c>NULL</c> if is not a child of .</para><para><c>Note</c> The returned pointer is a pointer into the existing parent structure. It is an alias for . No new memory is allocated in association with the returned pointer. It is not the caller&#39;s responsibility to free the returned value.</para></returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-ilfindchild
		// PUIDLIST_RELATIVE ILFindChild( PIDLIST_ABSOLUTE pidlParent, PCIDLIST_ABSOLUTE pidlChild );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "4f07e989-ae74-4cf4-b3d9-0f59f2653095")]
		public static extern IntPtr ILFindChild(IntPtr pidlParent, IntPtr pidlChild);

		/// <summary>
		/// <para>[</para>
		/// <para>ILLoadFromStreamEx(IStream*, PIDLIST_ABSOLUTE*)</para>
		/// <para>
		/// is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in
		/// subsequent versions.]
		/// </para>
		/// <para>Loads an absolute ITEMIDLIST from an IStream.</para>
		/// </summary>
		/// <param name="pstm">
		/// <para>Type: <c>IStream*</c></para>
		/// <para>A pointer to the IStream interface from which the absolute ITEMIDLIST loads.</para>
		/// </param>
		/// <param name="pidl">
		/// <para>TBD</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HRESULT</c></para>
		/// <para>If this function succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code.</para>
		/// </returns>
		/// <remarks>
		/// <para>For use where STRICT_TYPED_ITEMIDS is defined.</para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-illoadfromstreamex
		// SHSTDAPI ILLoadFromStreamEx( IStream *pstm, PIDLIST_RELATIVE *pidl );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "6fb735b6-a8c3-439e-9f20-4fda8f008b28")]
		public static extern HRESULT ILLoadFromStreamEx(IStream pstm, out IntPtr pidl);

		/// <summary>
		/// <para>Saves an ITEMIDLIST structure to a stream.</para>
		/// </summary>
		/// <param name="pstm">
		/// <para>Type: <c>IStream *</c></para>
		/// <para>A pointer to the IStream interface where the ITEMIDLIST is saved.</para>
		/// </param>
		/// <param name="pidl">
		/// <para>Type: <c>PCUIDLIST_RELATIVE</c></para>
		/// <para>A pointer to the ITEMIDLIST structure to be saved.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HRESULT</c></para>
		/// <para>Returns S_OK if successful, or a COM error value otherwise.</para>
		/// </returns>
		/// <remarks>
		/// <para>The stream must be opened for writing, or <c>ILSaveToStream</c> returns an error.</para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-ilsavetostream
		// SHSTDAPI ILSaveToStream( IStream *pstm, PCUIDLIST_RELATIVE pidl );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "40d5ce57-58dc-4c79-8fe6-5412e3d7dc64")]
		public static extern HRESULT ILSaveToStream(IStream pstm, IntPtr pidl);

		/// <summary>
		/// <para>
		/// [This function is available through Windows XP Service Pack 2 (SP2) and Windows Server 2003. It might be altered or unavailable
		/// in subsequent versions of Windows. Use
		/// </para>
		/// <para>GetDriveType</para>
		/// <para>or</para>
		/// <para>WNetGetConnection</para>
		/// <para>instead.]</para>
		/// <para>Tests whether a drive is a network drive.</para>
		/// </summary>
		/// <param name="iDrive">
		/// <para>Type: <c>int</c></para>
		/// <para>An integer that indicates which drive letter you want to test. Set it to 0 for A:, 1 for B:, and so on.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>int</c></para>
		/// <para>This function returns one of the following values.</para>
		/// <list type="table">
		/// <listheader>
		/// <term>Return value</term>
		/// <term>Description</term>
		/// </listheader>
		/// <item>
		/// <term>0</term>
		/// <term>The specified drive is not a network drive.</term>
		/// </item>
		/// <item>
		/// <term>1</term>
		/// <term>The specified drive is a network drive that is properly connected.</term>
		/// </item>
		/// <item>
		/// <term>2</term>
		/// <term>The specified drive is a network drive that is disconnected or in an error state.</term>
		/// </item>
		/// </list>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-isnetdrive
		// int IsNetDrive( int iDrive );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "44e02665-648a-4cf0-9dc0-038e54d08a49")]
		public static extern int IsNetDrive(int iDrive);

		/// <summary>
		/// <para>[IsUserAnAdmin is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in
		/// subsequent versions.]
		/// </para>
		/// <para>Tests whether the current user is a member of the Administrator's group.</para>
		/// </summary>
		/// <returns>
		/// <para>Type: <c>BOOL</c></para>
		/// <para>Returns <c>TRUE</c> if the user is a member of the Administrator's group; otherwise, <c>FALSE</c>.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// This function is a wrapper for CheckTokenMembership. It is recommended to call that function directly to determine Administrator
		/// group status rather than calling <c>IsUserAnAdmin</c>.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-isuseranadmin
		// BOOL IsUserAnAdmin( );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "fe698d32-32f6-4b2b-ad0c-5d9ec815177f")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool IsUserAnAdmin();

		/// <summary>
		/// <para>
		/// [OpenRegStream is available for use in the operating systems specified in the Requirements section. It may be altered or
		/// unavailable in subsequent versions. Instead, use SHOpenRegStream2 or SHOpenRegStream.]
		/// </para>
		/// <para>Opens a registry value and supplies an IStream interface that can be used to read from or write to the value.</para>
		/// </summary>
		/// <param name="hkey">
		/// <para>Type: <c>HKEY</c></para>
		/// <para>A handle to the key that is currently open.</para>
		/// </param>
		/// <param name="pszSubkey">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>A null-terminated Unicode string that specifies the name of the subkey.</para>
		/// </param>
		/// <param name="pszValue">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>A null-terminated Unicode string that specifies the value to be accessed.</para>
		/// </param>
		/// <param name="grfMode">
		/// <para>Type: <c>DWORD</c></para>
		/// <para>The type of access for the stream. This can be one of the following values.</para>
		/// <para>STGM_READ</para>
		/// <para>Open the stream for reading.</para>
		/// <para>STGM_WRITE</para>
		/// <para>Open the stream for writing.</para>
		/// <para>STGM_READWRITE</para>
		/// <para>Open the stream for reading and writing.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>IStream*</c></para>
		/// <para>Returns the address of an IStream interface if successful, or <c>NULL</c> otherwise.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-openregstream
		// IStream * OpenRegStream( HKEY hkey, PCWSTR pszSubkey, PCWSTR pszValue, DWORD grfMode );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "e1e35c94-84ac-4aa1-b2a1-47b37a7f224e")]
		public static extern IStream OpenRegStream(IntPtr hkey, [MarshalAs(UnmanagedType.LPWStr)] string pszSubkey, [MarshalAs(UnmanagedType.LPWStr)] string pszValue, STGM grfMode);

		/// <summary>
		/// <para>[PathCleanupSpec is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in
		/// subsequent versions.]
		/// </para>
		/// <para>
		/// Removes illegal characters from a file or directory name. Enforces the 8.3 filename format on drives that do not support long
		/// file names.
		/// </para>
		/// </summary>
		/// <param name="pszDir">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>
		/// A pointer to a null-terminated buffer that contains the fully qualified path of the directory that will contain the file or
		/// directory named at . The path must not exceed MAX_PATH characters in length, including the terminating null character. This path
		/// is not altered.
		/// </para>
		/// <para>This value can be <c>NULL</c>.</para>
		/// </param>
		/// <param name="pszSpec">
		/// <para>Type: <c>PWSTR</c></para>
		/// <para>
		/// A pointer to a null-terminated buffer that contains the file or directory name to be cleaned. In the case of a file, include the
		/// file's extension. Note that because '' is considered an invalid character and will be removed, this buffer cannot contain a path
		/// more than one directory deep.
		/// </para>
		/// <para>On exit, the buffer contains a null-terminated string that includes the cleaned name.</para>
		/// <para>This buffer should be at least MAX_PATH characters in length to avoid the possibility of a buffer overrun.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>int</c></para>
		/// <para>Returns one or more of the following values.</para>
		/// <list type="table">
		/// <listheader>
		/// <term>Return code</term>
		/// <term>Description</term>
		/// </listheader>
		/// <item>
		/// <term>PCS_REPLACEDCHAR</term>
		/// <term>Replaced one or more invalid characters.</term>
		/// </item>
		/// <item>
		/// <term>PCS_REMOVEDCHAR</term>
		/// <term>Removed one or more invalid characters.</term>
		/// </item>
		/// <item>
		/// <term>PCS_TRUNCATED</term>
		/// <term>The returned path is truncated.</term>
		/// </item>
		/// <item>
		/// <term>PCS_PATHTOOLONG</term>
		/// <term>
		/// The function failed because the input path specified at is too long to allow the formation of a valid file name from . When this
		/// flag is returned, it is always accompanied by the PCS_FATAL flag.
		/// </term>
		/// </item>
		/// <item>
		/// <term>PCS_FATAL</term>
		/// <term>The cleaned path is not a valid file name. This flag is always returned in conjunction with PCS_PATHTOOLONG.</term>
		/// </item>
		/// </list>
		/// </returns>
		/// <remarks>
		/// <para>The following are considered invalid characters in all names.</para>
		/// <para>
		/// Control characters are also considered invalid. If long file names are not supported, the semi-colon (;) and comma (,) characters
		/// are also invalid.
		/// </para>
		/// <para>
		/// The drive named in is checked to determine whether its file system supports long file names. If it does not, the name at is
		/// truncated to the 8.3 format and the PCS_TRUNCATED value returned. If is <c>NULL</c>, the drive on which Windows is installed is
		/// used to determine long file name support.
		/// </para>
		/// <para>
		/// If the full path—the number of characters in the path at plus the number of characters in the cleaned name at —exceeds MAX_PATH –
		/// 1 (to account for the terminating null character), the function returns PCS_PATHTOOLONG.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pathcleanupspec
		// int PathCleanupSpec( PCWSTR pszDir, PWSTR pszSpec );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "593fd2b7-44ae-4309-a185-97e42f3cc0fa")]
		public static extern PCS PathCleanupSpec([MarshalAs(UnmanagedType.LPWStr)] string pszDir, [MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszSpec);
		/// <summary>
		/// <para>[PathGetShortPath is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in
		/// subsequent versions.]
		/// </para>
		/// <para>Retrieves the short path form of a specified input path.</para>
		/// </summary>
		/// <param name="pszLongPath">
		/// <para>Type: <c>PWSTR</c></para>
		/// <para>
		/// A pointer to a null-terminated, Unicode string that contains the long path. When the function returns, it contains the equivalent
		/// short path.
		/// </para>
		/// </param>
		/// <returns>
		/// <para>This function does not return a value.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pathgetshortpath
		// void PathGetShortPath( PWSTR pszLongPath );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "f374a575-3fbf-4bed-aa76-76ed81e01d60")]
		public static extern void PathGetShortPath([MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszLongPath);

		/// <summary>
		/// <para>
		/// [PathIsExe is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable
		/// in subsequent versions.]
		/// </para>
		/// <para>Determines whether a file is an executable by examining the file name extension.</para>
		/// </summary>
		/// <param name="pszPath">
		/// <para>TBD</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>BOOL</c></para>
		/// <para>Returns <c>TRUE</c> if the file name extension is .cmd, .bat, .pif, .scf, .exe, .com, or .scr; otherwise, <c>FALSE</c>.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pathisexe
		// BOOL PathIsExe( PCWSTR pszPath );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "54e9dae7-f9c4-48b8-9b91-32ed21365fb7")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool PathIsExe([MarshalAs(UnmanagedType.LPWStr)] string pszPath);

		/// <summary>
		/// <para>
		/// [PathIsSlow is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable
		/// in subsequent versions.]
		/// </para>
		/// <para>Determines whether a file path is a high-latency network connection.</para>
		/// </summary>
		/// <param name="pszFile">
		/// <para>Type: <c>LPCTSTR</c></para>
		/// <para>A pointer to a null-terminated string that contains the fully qualified path of the file.</para>
		/// </param>
		/// <param name="dwAttr">
		/// <para>TBD</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>BOOL</c></para>
		/// <para>Returns <c>TRUE</c> if the connection is high-latency; otherwise, <c>FALSE</c>.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// A path is considered slow if the MultinetGetConnectionPerformance function returns a dwSpeed of 400 or less in its
		/// NETCONNECTINFOSTRUCT structure—this is the speed of the media to the network resource, in 100 bits-per-second (bps)—or if
		/// FILE_ATTRIBUTE_OFFLINE is set on the file.
		/// </para>
		/// <para>Note that network conditions can impact function performance time.</para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj/nf-shlobj-pathisslowa
		// BOOL PathIsSlowA( LPCSTR pszFile, DWORD dwAttr );
		[DllImport(Lib.Shell32, SetLastError = false, CharSet = CharSet.Auto)]
		[PInvokeData("shlobj.h", MSDNShortId = "f848a098-9248-453b-a957-77c35d70e528")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool PathIsSlow(string pszFile, uint dwAttr);

		/// <summary>
		/// <para>Creates a unique path name from a template.</para>
		/// </summary>
		/// <param name="pszUniqueName">
		/// <para>Type: <c>PWSTR</c></para>
		/// <para>
		/// A buffer that receives a null-terminated Unicode string that contains the unique path name. It should be at least MAX_PATH
		/// characters in length.
		/// </para>
		/// </param>
		/// <param name="cchMax">
		/// <para>Type: <c>UINT</c></para>
		/// <para>The number of characters in the buffer pointed to by .</para>
		/// </param>
		/// <param name="pszTemplate">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>
		/// A null-terminated Unicode string that contains a template that is used to construct the unique name. This template is used for
		/// drives that require file names with the 8.3 format. This string should be no more than MAX_PATH characters in length, including
		/// the terminating null character.
		/// </para>
		/// </param>
		/// <param name="pszLongPlate">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>
		/// A null-terminated Unicode string that contains a template that is used to construct the unique name. This template is used for
		/// drives that support long file names. This string should be no more than MAX_PATH characters in length, including the terminating
		/// null character.
		/// </para>
		/// </param>
		/// <param name="pszDir">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>
		/// A null-terminated string that contains the directory in which the new file resides. This string should be no more than MAX_PATH
		/// characters in length, including the terminating null character.
		/// </para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>BOOL</c></para>
		/// <para>Returns <c>TRUE</c> if successful; otherwise, <c>FALSE</c>.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// This function generates a new unique file name based on the templates specified by , for drives that require the 8.3 format, and
		/// for drives that support long file names. For example, if you specify "My New Filename" for , <c>PathMakeUniqueName</c> returns
		/// names such as "My New Filename (1)", "My New Filename (2)", and so on.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pathmakeuniquename
		// BOOL PathMakeUniqueName( PWSTR pszUniqueName, UINT cchMax, PCWSTR pszTemplate, PCWSTR pszLongPlate, PCWSTR pszDir );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "8456ae0c-e83c-43d0-a86a-1861a373d237")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool PathMakeUniqueName([MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszUniqueName, uint cchMax, [MarshalAs(UnmanagedType.LPWStr)] string pszTemplate, [MarshalAs(UnmanagedType.LPWStr)] string pszLongPlate, [MarshalAs(UnmanagedType.LPWStr)] string pszDir);

		/// <summary>
		/// <para>
		/// [PathResolve is available for use in the operating systems specified in the Requirements section. It may be altered or
		/// unavailable in subsequent versions.]
		/// </para>
		/// <para>Converts a relative or unqualified path name to a fully qualified path name.</para>
		/// </summary>
		/// <param name="pszPath">
		/// <para>Type: <c>PWSTR</c></para>
		/// <para>
		/// A null-terminated Unicode string that contains the path to resolve. When the function returns, the string contains the
		/// corresponding fully qualified path. This buffer should be at least MAX_PATH characters long.
		/// </para>
		/// </param>
		/// <param name="dirs">
		/// <para>Type: <c>PZPCWSTR</c></para>
		/// <para>
		/// A pointer to an optional null-terminated array of directories to be searched first in the case that the path cannot be resolved
		/// from . This value can be <c>NULL</c>.
		/// </para>
		/// </param>
		/// <param name="fFlags">
		/// <para>Type: <c>UINT</c></para>
		/// <para>Flags that specify how the function operates.</para>
		/// <para>PRF_VERIFYEXISTS</para>
		/// <para>Return <c>TRUE</c> if the file's existence is verified; otherwise <c>FALSE</c>.</para>
		/// <para>PRF_TRYPROGRAMEXTENSIONS</para>
		/// <para>Look for the specified path with the following extensions appended: .pif, .com, .bat, .cmd, .lnk, and .exe.</para>
		/// <para>PRF_FIRSTDIRDEF</para>
		/// <para>Look first in the directory or directories specified by .</para>
		/// <para>PRF_DONTFINDLNK</para>
		/// <para>Ignore .lnk files.</para>
		/// <para>PRF_REQUIREABSOLUTE</para>
		/// <para>Require an absolute (full) path.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>int</c></para>
		/// <para>
		/// Returns <c>TRUE</c>, unless PRF_VERIFYEXISTS is set. If that flag is set, the function returns <c>TRUE</c> if the file is
		/// verified to exist and <c>FALSE</c> otherwise. It also sets an ERROR_FILE_NOT_FOUND error code that you can retrieve by calling GetLastError.
		/// </para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// A <c>FALSE</c> return value does not necessarily mean that the file does not exist. It might mean that the function is simply
		/// unable to find the file from the supplied information.
		/// </para>
		/// <para>If <c>PathResolve</c> cannot resolve the path specified in , it calls PathFindOnPath using and as the parameters.</para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pathresolve
		// int PathResolve( PWSTR pszPath, PZPCWSTR dirs, UINT fFlags );
		[DllImport(Lib.Shell32, SetLastError = true, ExactSpelling = true, CharSet = CharSet.Unicode)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "84bf0b56-513f-4ac6-b2cf-11f0c471da1e")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool PathResolve(StringBuilder pszPath, string[] dirs, PRF fFlags);
		/// <summary>
		/// <para>Creates a unique filename based on an existing filename.</para>
		/// </summary>
		/// <param name="pszUniqueName">
		/// <para>Type: <c>PWSTR</c></para>
		/// <para>
		/// A string buffer that receives a null-terminated Unicode string that contains the fully qualified path of the unique file name.
		/// This buffer should be at least MAX_PATH characters long to avoid causing a buffer overrun.
		/// </para>
		/// </param>
		/// <param name="pszPath">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>
		/// A null-terminated Unicode string that contains the fully qualified path of folder that will contain the new file. If is set to
		/// <c>NULL</c>, this string must contain a full destination path, ending with the long file name that the new file name will be base on.
		/// </para>
		/// </param>
		/// <param name="pszShort">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>
		/// A null-terminated Unicode string that contains the short file name that the unique name will be based on. Set this value to
		/// <c>NULL</c> to create a name based on the long file name.
		/// </para>
		/// </param>
		/// <param name="pszFileSpec">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>A null-terminated Unicode string that contains the long file name that the unique name will be based on.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>BOOL</c></para>
		/// <para>Returns <c>TRUE</c> if a unique name was successfully created; otherwise <c>FALSE</c>.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// If the generated path exceeds MAX_PATH characters, this function may return a truncated string in
		/// <c>PathYetAnotherMakeUniqueName</c>. In that case, the function returns <c>FALSE</c>.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pathyetanothermakeuniquename
		// BOOL PathYetAnotherMakeUniqueName( PWSTR pszUniqueName, PCWSTR pszPath, PCWSTR pszShort, PCWSTR pszFileSpec );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true, CharSet = CharSet.Unicode)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "1f76ecfa-6f2f-4dde-b05e-4252c92660d9")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool PathYetAnotherMakeUniqueName(StringBuilder pszUniqueName, string pszPath, string pszShort, string pszFileSpec);

		/// <summary>
		/// <para>
		/// [PickIconDlg is available for use in the operating systems specified in the Requirements section. It may be altered or
		/// unavailable in subsequent versions.]
		/// </para>
		/// <para>
		/// Displays a dialog box that allows the user to choose an icon from the selection available embedded in a resource such as an
		/// executable or DLL file.
		/// </para>
		/// </summary>
		/// <param name="hwnd">
		/// <para>Type: <c>HWND</c></para>
		/// <para>The handle of the parent window. This value can be <c>NULL</c>.</para>
		/// </param>
		/// <param name="pszIconPath">
		/// <para>Type: <c>PWSTR</c></para>
		/// <para>
		/// A pointer to a string that contains the null-terminated, fully qualified path of the default resource that contains the icons. If
		/// the user chooses a different resource in the dialog, this buffer contains the path of that file when the function returns. This
		/// buffer should be at least MAX_PATH characters in length, or the returned path may be truncated. You should verify that the path
		/// is valid before using it.
		/// </para>
		/// </param>
		/// <param name="cchIconPath">
		/// <para>Type: <c>UINT</c></para>
		/// <para>The number of characters in , including the terminating <c>NULL</c> character.</para>
		/// </param>
		/// <param name="piIconIndex">
		/// <para>Type: <c>int*</c></para>
		/// <para>
		/// A pointer to an integer that on entry specifies the index of the initial selection and, when this function returns successfully,
		/// receives the index of the icon that was selected.
		/// </para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>int</c></para>
		/// <para>Returns 1 if successful; otherwise, 0.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pickicondlg
		// int PickIconDlg( HWND hwnd, PWSTR pszIconPath, UINT cchIconPath, int *piIconIndex );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "3dfcda10-26d8-495d-8c92-7ff16da098c1")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool PickIconDlg(HandleRef hwnd, [MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszIconPath, uint cchIconPath, ref int piIconIndex);

		/// <summary>
		/// [PifMgr_CloseProperties is available for use in the operating systems specified in the Requirements section.It may be altered or unavailable in subsequent versions.]
		/// <para>Closes application properties that were opened with PifMgr_OpenProperties.</para></summary>
		/// <param name="hProps">A handle to the application's properties. This parameter should be set to the value that is returned by PifMgr_OpenProperties.</param>
		/// <param name="flOpt">A flag that specifies how the function operates.</param>
		/// <returns>Returns NULL if successful. If unsuccessful, the functions returns the handle to the application properties that was passed as hProps.</returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pifmgr_closeproperties
		// HANDLE PifMgr_CloseProperties(HANDLE hProps, UINT flOpt);
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "fd50d4f8-87c8-4162-9e88-3c8592b929fa")]
		public static extern IntPtr PifMgr_CloseProperties(IntPtr hProps, CLOSEPROPS flOpt);

		/// <summary>
		/// [PifMgr_GetProperties is available for use in the operating systems specified in the Requirements section.It may be altered or unavailable in subsequent versions.]
		/// <para>Returns a specified block of data from a .pif file.</para></summary>
		/// <param name="hProps">A handle to an application's properties. This parameter should be set to the value that is returned by PifMgr_OpenProperties.</param>
		/// <param name="pszGroup">A null-terminated string that contains the property group name. It can be one of the following, or any other name that corresponds to a valid .pif extension.</param>
		/// <param name="lpProps">When this function returns, contains a pointer to a PROPPRG structure.</param>
		/// <param name="cbProps">The size of the buffer, in bytes, pointed to by lpProps.</param>
		/// <param name="flOpt">Set this parameter to GETPROPS_NONE.</param>
		/// <returns>Returns NULL if successful. If unsuccessful, the function returns the handle to the application properties that were passed as hProps.</returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pifmgr_getproperties
		// int PifMgr_GetProperties( HANDLE hProps, PCSTR pszGroup, void* lpProps, int cbProps, UINT flOpt );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true, CharSet = CharSet.Ansi)]
		[PInvokeData("shlobj_core.h")]
		public static extern int PifMgr_GetProperties(IntPtr hProps, string pszGroup, IntPtr lpProps, int cbProps, uint flOpt = 0);

		/// <summary>
		/// <para>
		/// [PifMgr_OpenProperties is available for use in the operating systems specified in the Requirements section. It may be altered or
		/// unavailable in subsequent versions.]
		/// </para>
		/// <para>Opens the .pif file associated with a Microsoft MS-DOS application, and returns a handle to the application's properties.</para>
		/// </summary>
		/// <param name="pszApp">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>A null-terminated Unicode string that contains the application's name.</para>
		/// </param>
		/// <param name="pszPIF">
		/// <para>TBD</para>
		/// </param>
		/// <param name="hInf">
		/// <para>Type: <c>UINT</c></para>
		/// <para>
		/// A handle to the application's .inf file. Set this value to zero if there is no .inf file. Set this value to -1 to prevent the
		/// .inf file from being processed.
		/// </para>
		/// </param>
		/// <param name="flOpt">
		/// <para>Type: <c>UINT</c></para>
		/// <para>A flag that controls how the function operates.</para>
		/// <para>OPENPROPS_INHIBITPIF</para>
		/// <para>
		/// Ignore any existing .pif files and get the properties from win.ini or _Default.pif. This flag is ignored on Windows NT, Windows
		/// 2000, and Windows XP.
		/// </para>
		/// <para>OPENPROPS_NONE</para>
		/// <para>No options specified.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HANDLE</c></para>
		/// <para>Returns a handle to the application's properties. Use this handle when you call the related .pif functions.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// You should not think of <c>PifMgr_OpenProperties</c> as a function that opens a file somewhere. The .pif file does not remain
		/// open after this call. It is more useful to think of the function as a property structure allocator that you can initialize using
		/// disk data. The primary reason why this function fails is because of low memory or inability to open the specified .pif file.
		/// </para>
		/// <para>
		/// If no .pif file exists, the function still allocates a data block in memory and initializes it with data from _Default.pif or its
		/// internal defaults. If the function looks for a .pif file name but does not find it, it constructs a name and saves it in its
		/// internal .pif data structure. This guarantees that if PifMgr_SetProperties is called, the data is saved to disk.
		/// </para>
		/// <para>If the function does not find the .pif file, it searches for it in the following order.</para>
		/// <list type="number">
		/// <item>Searches the current directory.</item>
		/// <item>Searches the specified directory.</item>
		/// <item>Searches in .pif directory.</item>
		/// <item>Searches the folders specified by the PATH environment variable.</item>
		/// </list>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pifmgr_openproperties
		// HANDLE PifMgr_OpenProperties( PCWSTR pszApp, PCWSTR pszPIF, UINT hInf, UINT flOpt );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "0bc11528-7278-4765-b3cb-671ba82c9155")]
		public static extern IntPtr PifMgr_OpenProperties([MarshalAs(UnmanagedType.LPWStr)] string pszApp, [MarshalAs(UnmanagedType.LPWStr)] string pszPIF, uint hInf, OPENPROPS flOpt);
		/// <summary>
		/// [PifMgr_SetProperties is available for use in the operating systems specified in the Requirements section.It may be altered or unavailable in subsequent versions.]
		/// <para>Assigns values to a block of data from a .pif file.</para></summary>
		/// <param name="hProps">A handle to the application's properties. This parameter should be set to the value that is returned by PifMgr_OpenProperties.</param>
		/// <param name="pszGroup">A null-terminated ANSI string containing the property group name. It can be one of the following, or any other name that corresponds to a valid .pif extension.</param>
		/// <param name="lpProps">A property group record buffer that holds the data.</param>
		/// <param name="cbProps">The size of the buffer, in bytes, pointed to by lpProps.</param>
		/// <param name="flOpt">Always SETPROPS_NONE.</param>
		/// <returns>Returns the amount of information transferred, in bytes. Returns zero if the group cannot be found or an error occurs.</returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-pifmgr_setproperties
		// int PifMgr_SetProperties(HANDLE hProps, PCSTR pszGroup, const void* lpProps, int cbProps, UINT flOpt );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true, CharSet = CharSet.Ansi)]
		[PInvokeData("shlobj_core.h")]
		public static extern int PifMgr_SetProperties(IntPtr hProps, string pszGroup, IntPtr lpProps, int cbProps, uint flOpt = 0);

		/// <summary><para>[ReadCabinetState is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions.]</para><para>Fills a CABINETSTATE structure with information from the registry.</para></summary><param name="pcs"><para>Type: <c>CABINETSTATE*</c></para><para>When this function returns, contains a pointer to a CABINETSTATE structure that contains either information pulled from the registry or default information.</para></param><param name="cLength"><para>Type: <c>int</c></para><para>The size of the structure pointed to by , in bytes.</para></param><returns><para>Type: <c>BOOL</c></para><para>Returns <c>TRUE</c> if the returned structure contains information from the registry. Returns <c>FALSE</c> if the structure contains default information.</para></returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-readcabinetstate
		// BOOL ReadCabinetState( CABINETSTATE *pcs, int cLength );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "0f0c6a10-588f-4c79-b73b-cf0bf9336ffc")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool ReadCabinetState(ref CABINETSTATE pcs, int cLength);

		/// <summary>
		/// <para>
		/// [RealDriveType is available for use in the operating systems specified in the Requirements section. It may be altered or
		/// unavailable in subsequent versions.]
		/// </para>
		/// <para>Determines the drive type based on the drive number.</para>
		/// </summary>
		/// <param name="iDrive">
		/// <para>Type: <c>int</c></para>
		/// <para>The number of the drive that you want to test. "A:" corresponds to 0, "B:" to 1, and so on.</para>
		/// </param>
		/// <param name="fOKToHitNet">
		/// <para>Type: <c>BOOL</c></para>
		/// <para>Reserved. Must be set to 0.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>int</c></para>
		/// <para>Returns one of the following values.</para>
		/// <list type="table">
		/// <listheader>
		/// <term>Return code</term>
		/// <term>Description</term>
		/// </listheader>
		/// <item>
		/// <term>DRIVE_UNKNOWN</term>
		/// <term>The drive type cannot be determined.</term>
		/// </item>
		/// <item>
		/// <term>DRIVE_NO_ROOT_DIR</term>
		/// <term>The root path is invalid. For example, no volume is mounted at the path.</term>
		/// </item>
		/// <item>
		/// <term>DRIVE_REMOVABLE</term>
		/// <term>The disk can be removed from the drive.</term>
		/// </item>
		/// <item>
		/// <term>DRIVE_FIXED</term>
		/// <term>The disk cannot be removed from the drive.</term>
		/// </item>
		/// <item>
		/// <term>DRIVE_REMOTE</term>
		/// <term>The drive is a remote (network) drive.</term>
		/// </item>
		/// <item>
		/// <term>DRIVE_CDROM</term>
		/// <term>The drive is a CD-ROM drive.</term>
		/// </item>
		/// <item>
		/// <term>DRIVE_RAMDISK</term>
		/// <term>The drive is a RAM disk.</term>
		/// </item>
		/// </list>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-realdrivetype
		// int RealDriveType( int iDrive, BOOL fOKToHitNet );
		// public static extern int RealDriveType(int iDrive, [MarshalAs(UnmanagedType.Bool)] bool fOKToHitNet);
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "c4e55b50-637a-446f-aa9c-7d8c71d8071c")]
		public static extern DRIVE_TYPE RealDriveType(int iDrive, [MarshalAs(UnmanagedType.Bool)] bool fOKToHitNet);

		/// <summary>
		/// <para>
		/// [This function is available through Windows XP Service Pack 2 (SP2) and Windows Server 2003. It might be altered or unavailable
		/// in subsequent versions of Windows.]
		/// </para>
		/// <para>
		/// Displays a dialog box that prompts the user to restart Windows. When the user clicks the button, the function calls ExitWindowsEx
		/// to attempt to restart Windows.
		/// </para>
		/// </summary>
		/// <param name="hwnd">
		/// <para>TBD</para>
		/// </param>
		/// <param name="pszPrompt">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>A null-terminated Unicode string that contains the text that displays in the dialog box which prompts the user.</para>
		/// </param>
		/// <param name="dwReturn">
		/// <para>TBD</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>int</c></para>
		/// <para>Returns the identifier of the button that was pressed to close the dialog box.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-restartdialog
		// int RestartDialog( HWND hwnd, PCWSTR pszPrompt, DWORD dwReturn );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "ec1e3c11-9960-482c-8461-72c4d41dff3c")]
		public static extern int RestartDialog(HandleRef hwnd, [MarshalAs(UnmanagedType.LPWStr)] string pszPrompt, uint dwReturn);

		/// <summary>
		/// <para>
		/// [This function is available through Windows XP Service Pack 2 (SP2) and Windows Server 2003. It might be altered or unavailable
		/// in subsequent versions of Windows.]
		/// </para>
		/// <para>
		/// Displays a dialog box that asks the user to restart Windows. When the user clicks the button, the function calls ExitWindowsEx to
		/// attempt to restart Windows.
		/// </para>
		/// </summary>
		/// <param name="hwnd">
		/// <para>TBD</para>
		/// </param>
		/// <param name="pszPrompt">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>A null-terminated string that contains the text that displays in the dialog box to prompt the user.</para>
		/// </param>
		/// <param name="dwReturn">
		/// <para>TBD</para>
		/// </param>
		/// <param name="dwReasonCode">
		/// <para>Type: <c>DWORD</c></para>
		/// <para>
		/// <c>Windows XP:</c> Specifies the reason for initiating the shutdown. For more information, see System Shutdown Reason Codes.
		/// </para>
		/// <para><c>Windows 2000:</c> This parameter is ignored.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>int</c></para>
		/// <para>Returns the identifier of the button that was pressed to close the dialog box.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-restartdialogex
		// int RestartDialogEx( HWND hwnd, PCWSTR pszPrompt, DWORD dwReturn, DWORD dwReasonCode );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "32bc232f-6cc4-4f19-9d33-ba7ad28dfd59")]
		public static extern int RestartDialogEx(HandleRef hwnd, [MarshalAs(UnmanagedType.LPWStr)] string pszPrompt, uint dwReturn, uint dwReasonCode);

		/// <summary>
		/// Notifies the system that an item has been accessed, for the purposes of tracking those items used most recently and most frequently. This function
		/// can also be used to clear all usage data.
		/// </summary>
		/// <param name="uFlags">A value from the SHARD enumeration that indicates the form of the information pointed to by the pv parameter.</param>
		/// <param name="pv">
		/// A pointer to data that identifies the item that has been accessed. The item can be specified in this parameter in one of the following forms:
		/// <list type="bullet">
		/// <item><definition>A null-terminated string that contains the path and file name of the item.</definition></item>
		/// <item><definition>A PIDL that identifies the item's file object.</definition></item>
		/// <item>
		/// <definition>Windows 7 and later only. A SHARDAPPIDINFO, SHARDAPPIDINFOIDLIST, or SHARDAPPIDINFOLINK structure that identifies the item through an
		/// AppUserModelID. See Application User Model IDs (AppUserModelIDs) for more information.</definition>
		/// </item>
		/// <item><definition>Windows 7 and later only. An IShellLink object that identifies the item through a shortcut.</definition></item>
		/// </list>
		/// <para>Set this parameter to NULL to clear all usage data on all items.</para>
		/// </param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[SecurityCritical, SuppressUnmanagedCodeSecurity]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762105")]
		public static extern void SHAddToRecentDocs(SHARD uFlags, IShellLinkW pv);

		/// <summary>
		/// Notifies the system that an item has been accessed, for the purposes of tracking those items used most recently and most frequently. This function
		/// can also be used to clear all usage data.
		/// </summary>
		/// <param name="uFlags">A value from the SHARD enumeration that indicates the form of the information pointed to by the pv parameter.</param>
		/// <param name="pv">
		/// A pointer to data that identifies the item that has been accessed. The item can be specified in this parameter in one of the following forms:
		/// <list type="bullet">
		/// <item><definition>A null-terminated string that contains the path and file name of the item.</definition></item>
		/// <item><definition>A PIDL that identifies the item's file object.</definition></item>
		/// <item>
		/// <definition>Windows 7 and later only. A SHARDAPPIDINFO, SHARDAPPIDINFOIDLIST, or SHARDAPPIDINFOLINK structure that identifies the item through an
		/// AppUserModelID. See Application User Model IDs (AppUserModelIDs) for more information.</definition>
		/// </item>
		/// <item><definition>Windows 7 and later only. An IShellLink object that identifies the item through a shortcut.</definition></item>
		/// </list>
		/// <para>Set this parameter to NULL to clear all usage data on all items.</para>
		/// </param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[SecurityCritical, SuppressUnmanagedCodeSecurity]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762105")]
		public static extern void SHAddToRecentDocs(SHARD uFlags, [MarshalAs(UnmanagedType.LPWStr)] string pv);

		/// <summary>
		/// Notifies the system that an item has been accessed, for the purposes of tracking those items used most recently and most frequently. This function
		/// can also be used to clear all usage data.
		/// </summary>
		/// <param name="uFlags">A value from the SHARD enumeration that indicates the form of the information pointed to by the pv parameter.</param>
		/// <param name="pv">
		/// A pointer to data that identifies the item that has been accessed. The item can be specified in this parameter in one of the following forms:
		/// <list type="bullet">
		/// <item><definition>A null-terminated string that contains the path and file name of the item.</definition></item>
		/// <item><definition>A PIDL that identifies the item's file object.</definition></item>
		/// <item>
		/// <definition>Windows 7 and later only. A SHARDAPPIDINFO, SHARDAPPIDINFOIDLIST, or SHARDAPPIDINFOLINK structure that identifies the item through an
		/// AppUserModelID. See Application User Model IDs (AppUserModelIDs) for more information.</definition>
		/// </item>
		/// <item><definition>Windows 7 and later only. An IShellLink object that identifies the item through a shortcut.</definition></item>
		/// </list>
		/// <para>Set this parameter to NULL to clear all usage data on all items.</para>
		/// </param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[SecurityCritical, SuppressUnmanagedCodeSecurity]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762105")]
		public static extern void SHAddToRecentDocs(SHARD uFlags, PIDL pv);

		/// <summary>
		/// <para>
		/// Given a Shell namespace item specified in the form of a folder, and an item identifier list relative to that folder, this
		/// function binds to the parent of the namespace item and optionally returns a pointer to the final component of the item identifier list.
		/// </para>
		/// </summary>
		/// <param name="psfRoot">
		/// <para>Type: <c>IShellFolder*</c></para>
		/// <para>A pointer to a Shell folder object. If is <c>NULL</c>, indicates that the IDList passed is relative to the desktop.</para>
		/// </param>
		/// <param name="pidl">
		/// <para>Type: <c>PCUIDLIST_RELATIVE</c></para>
		/// <para>A PIDL to bind to, relative to . If is <c>NULL</c>, this is an absolute IDList relative to the desktop folder.</para>
		/// </param>
		/// <param name="riid">
		/// <para>Type: <c>REFIID</c></para>
		/// <para>
		/// Reference to the desired interface ID. This is typically IID_IShellFolder or IID_IShellFolder2, but can be anything supported by
		/// the target folder.
		/// </para>
		/// </param>
		/// <param name="ppv">
		/// <para>Type: <c>void**</c></para>
		/// <para>
		/// When this function returns, contains the interface pointer requested in . This is typically IShellFolder or IShellFolder2, but
		/// can be anything supported by the target folder.
		/// </para>
		/// </param>
		/// <param name="ppidlLast">
		/// <para>Type: <c>PCUITEMID_CHILD*</c></para>
		/// <para>
		/// A pointer to the last ID of the parameter, and is a child ID relative to the parent folder returned in . This value can be <c>NULL</c>.
		/// </para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HRESULT</c></para>
		/// <para>If this function succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// <c>Note</c> Calling the <c>SHBindToFolderIDListParent</c> function is equivalent to calling the SHBindToFolderIDListParentEx
		/// function with <c>NULL</c> as the bind context.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-shbindtofolderidlistparent
		// SHSTDAPI SHBindToFolderIDListParent( IShellFolder *psfRoot, PCUIDLIST_RELATIVE pidl, REFIID riid, void **ppv, PCUITEMID_CHILD *ppidlLast );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "72a79d1b-15ed-475e-9ebd-03345579a06a")]
		public static extern HRESULT SHBindToFolderIDListParent(IShellFolder psfRoot, PIDL pidl, [In, MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv, IntPtr ppidlLast);

		/// <summary>
		/// <para>Extends the SHBindToFolderIDListParent function by allowing the caller to specify a bind context.</para>
		/// </summary>
		/// <param name="psfRoot">
		/// <para>Type: <c>IShellFolder*</c></para>
		/// <para>A pointer to a Shell folder object. If is <c>NULL</c>, indicates that the IDList passed is relative to the desktop.</para>
		/// </param>
		/// <param name="pidl">
		/// <para>Type: <c>PCUIDLIST_RELATIVE</c></para>
		/// <para>A PIDL to bind to, relative to . If is <c>NULL</c>, this is an absolute IDList relative to the desktop folder.</para>
		/// </param>
		/// <param name="ppbc">
		/// <para>Type: <c>IBindCtx*</c></para>
		/// <para>
		/// A pointer to IBindCtx interface on a bind context object to be used during this operation. If this parameter is not used, set it
		/// to <c>NULL</c>, which is equivalent to calling the SHBindToFolderIDListParent function. Because support for is optional for
		/// folder object implementations, some folders may not support the use of bind contexts.
		/// </para>
		/// </param>
		/// <param name="riid">
		/// <para>Type: <c>REFIID</c></para>
		/// <para>
		/// Reference to the desired interface ID. This is typically IID_IShellFolder or IID_IShellFolder2, but can be anything supported by
		/// the target folder.
		/// </para>
		/// </param>
		/// <param name="ppv">
		/// <para>Type: <c>void**</c></para>
		/// <para>
		/// When this function returns, contains the interface pointer requested in . This is typically IShellFolder or IShellFolder2, but
		/// can be anything supported by the target folder.
		/// </para>
		/// </param>
		/// <param name="ppidlLast">
		/// <para>Type: <c>PCUITEMID_CHILD*</c></para>
		/// <para>
		/// A pointer to the last ID of the parameter, and is a child ID relative to the parent folder returned in . This value can be <c>NULL</c>.
		/// </para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HRESULT</c></para>
		/// <para>If this 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/desktop/api/shlobj_core/nf-shlobj_core-shbindtofolderidlistparentex
		// SHSTDAPI SHBindToFolderIDListParentEx( IShellFolder *psfRoot, PCUIDLIST_RELATIVE pidl, IBindCtx *ppbc, REFIID riid, void **ppv, PCUITEMID_CHILD *ppidlLast );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "4f9b68cb-d0ae-45f7-90f5-2db1da3ab599")]
		public static extern HRESULT SHBindToFolderIDListParentEx(IShellFolder psfRoot, PIDL pidl, IBindCtx ppbc, [In, MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv, IntPtr ppidlLast);

		/// <summary>
		/// <para>Retrieves and binds to a specified object by using the Shell namespace IShellFolder::BindToObject method.</para>
		/// </summary>
		/// <param name="psf">
		/// <para>Type: <c>IShellFolder*</c></para>
		/// <para>
		/// A pointer to IShellFolder. This parameter can be <c>NULL</c>. If is <c>NULL</c>, this indicates parameter is relative to the
		/// desktop. In this case, must specify an absolute ITEMIDLIST.
		/// </para>
		/// </param>
		/// <param name="pidl">
		/// <para>Type: <c>PCUIDLIST_RELATIVE</c></para>
		/// <para>
		/// A pointer to a constant ITEMIDLIST to bind to that is relative to . If is <c>NULL</c>, this is an absolute <c>ITEMIDLIST</c>
		/// relative to the desktop folder.
		/// </para>
		/// </param>
		/// <param name="pbc">
		/// <para>Type: <c>IBindCtx*</c></para>
		/// <para>
		/// A pointer to IBindCtx interface on a bind context object to be used during this operation. If this parameter is not used, set it
		/// to <c>NULL</c>. Because support for is optional for folder object implementations, some folders may not support the use of bind contexts.
		/// </para>
		/// </param>
		/// <param name="riid">
		/// <para>Type: <c>REFIID</c></para>
		/// <para>Identifier of the interface to return.</para>
		/// </param>
		/// <param name="ppv">
		/// <para>Type: <c>void**</c></para>
		/// <para>
		/// When this method returns, contains the interface pointer as specified in to the bound object. If an error occurs, contains a
		/// <c>NULL</c> pointer.
		/// </para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HRESULT</c></para>
		/// <para>If this function succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code.</para>
		/// </returns>
		/// <remarks>
		/// <para><c>Note</c> This is a helper function that gets the desktop object by calling SHGetDesktopFolder.</para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-shbindtoobject
		// SHSTDAPI SHBindToObject( IShellFolder *psf, PCUIDLIST_RELATIVE pidl, IBindCtx *pbc, REFIID riid, void **ppv );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "acc16097-8301-4118-8cb5-00aa2705306a")]
		public static extern HRESULT SHBindToObject(IShellFolder psf, PIDL pidl, IBindCtx pbc, [In, MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv);

		/// <summary>Displays a dialog box that enables the user to select a Shell folder.</summary>
		/// <param name="lpbi">A pointer to a BROWSEINFO structure that contains information used to display the dialog box.</param>
		/// <returns>
		/// Returns a PIDL that specifies the location of the selected folder relative to the root of the namespace. If the user chooses the Cancel button in the
		/// dialog box, the return value is NULL.
		/// </returns>
		[DllImport(Lib.Shell32, CharSet = CharSet.Auto)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762115")]
		public static extern PIDL SHBrowseForFolder(ref BROWSEINFO lpbi);

		/// <summary>
		/// <para>Locks the shared memory associated with a Shell change notification event.</para>
		/// </summary>
		/// <param name="hChange">
		/// <para>Type: <c>HANDLE</c></para>
		/// <para>A handle to a window received as a in the specified Shell change notification message.</para>
		/// </param>
		/// <param name="dwProcId">
		/// <para>Type: <c>DWORD</c></para>
		/// <para>The process ID ( in the message callback).</para>
		/// </param>
		/// <param name="pppidl">
		/// <para>Type: <c>PIDLIST_ABSOLUTE**</c></para>
		/// <para>
		/// The address of a pointer to a PIDLIST_ABSOLUTE that, when this function returns successfully, receives the list of affected PIDLs.
		/// </para>
		/// </param>
		/// <param name="plEvent">
		/// <para>Type: <c>LONG*</c></para>
		/// <para>
		/// A pointer to a LONG value that, when this function returns successfully, receives the Shell change notification ID of the event
		/// that took place.
		/// </para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HANDLE</c></para>
		/// <para>Returns a handle (HLOCK) to the locked memory. Pass this value to SHChangeNotification_Unlock when finished.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-shchangenotification_lock
		// HANDLE SHChangeNotification_Lock( HANDLE hChange, DWORD dwProcId, PIDLIST_ABSOLUTE **pppidl, LONG *plEvent );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "8e22d5d0-64be-403c-982d-c23705d85223")]
		public static extern IntPtr SHChangeNotification_Lock(IntPtr hChange, uint dwProcId, IntPtr pppidl, ref int plEvent);

		/// <summary>
		/// <para>Unlocks shared memory for a change notification.</para>
		/// </summary>
		/// <param name="hLock">
		/// <para>Type: <c>HANDLE</c></para>
		/// <para>A handle to the memory lock. This is the handle returned by SHChangeNotification_Lock when it locked the memory.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>BOOL</c></para>
		/// <para>Returns <c>TRUE</c> on success; otherwise, <c>FALSE</c>.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-shchangenotification_unlock
		// BOOL SHChangeNotification_Unlock( HANDLE hLock );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "967ede1f-ee9c-46ee-a371-dcfc3a57d824")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool SHChangeNotification_Unlock(IntPtr hLock);

		/// <summary>
		/// Notifies the system of an event that an application has performed. An application should use this function if it performs an
		/// action that may affect the Shell.
		/// </summary>
		/// <param name="wEventId">
		/// Describes the event that has occurred. Typically, only one event is specified at a time. If more than one event is specified, the
		/// values contained in the dwItem1 and dwItem2 parameters must be the same, respectively, for all specified events.
		/// </param>
		/// <param name="uFlags">Flags that, when combined bitwise with SHCNF_TYPE, indicate the meaning of the dwItem1 and dwItem2 parameters.</param>
		/// <param name="dwItem1">Optional. First event-dependent value.</param>
		/// <param name="dwItem2">Optional. Second event-dependent value.</param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[PInvokeData("Shlobj.h")]
		public static extern void SHChangeNotify(SHCNE wEventId, SHCNF uFlags, [Optional] IntPtr dwItem1, [Optional] IntPtr dwItem2);

		/// <summary>
		/// <para>Unregisters the client's window process from receiving SHChangeNotify messages.</para>
		/// </summary>
		/// <param name="ulID">
		/// <para>Type: <c>ULONG</c></para>
		/// <para>A value of type <c>ULONG</c> that specifies the registration ID returned by SHChangeNotifyRegister.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>BOOL</c></para>
		/// <para>Returns <c>TRUE</c> if the specified client was found and removed; otherwise <c>FALSE</c>.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// See the Change Notify Watcher Sample in the Windows Software Development Kit (SDK) for a full example that demonstrates the use
		/// of this function.
		/// </para>
		/// <para>
		/// The <c>NTSHChangeNotifyDeregister</c> function, which is no longer available for use as of Windows Vista, was equivalent to <c>SHChangeNotifyDeregister</c>.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-shchangenotifyderegister
		// BOOL SHChangeNotifyDeregister( ULONG ulID );
		[DllImport(Lib.Shell32, SetLastError = false, CharSet = CharSet.Auto)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "fad021dc-8199-4384-b623-c98bc618799f")]
		[return: MarshalAs(UnmanagedType.Bool)]
		public static extern bool SHChangeNotifyDeregister(uint ulID);

		/// <summary>
		/// <para>Enables asynchronous register and deregister of a thread.</para>
		/// </summary>
		/// <param name="status">
		/// <para>Type: <c>SCNRT_STATUS</c></para>
		/// <para>Indicates whether the function is being used to register or deregister the thread. One of the values of SCNRT_STATUS.</para>
		/// </param>
		/// <returns>
		/// <para>This function does not return a value.</para>
		/// </returns>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj/nf-shlobj-shchangenotifyregisterthread
		// void SHChangeNotifyRegisterThread( SCNRT_STATUS status );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj.h", MSDNShortId = "170afefc-b4de-4661-9c12-1341656b0fdb")]
		public static extern void SHChangeNotifyRegisterThread(SCNRT_STATUS status);

		/// <summary>
		/// <para>Creates a data object in a parent folder.</para>
		/// </summary>
		/// <param name="pidlFolder">
		/// <para>Type: <c>PCIDLIST_ABSOLUTE</c></para>
		/// <para>A pointer to an ITEMIDLIST (PIDL) of the parent folder that contains the data object.</para>
		/// </param>
		/// <param name="cidl">
		/// <para>Type: <c>UINT</c></para>
		/// <para>The number of file objects or subfolders specified in the parameter.</para>
		/// </param>
		/// <param name="apidl">
		/// <para>Type: <c>PCUITEMID_CHILD_ARRAY</c></para>
		/// <para>
		/// An array of pointers to constant ITEMIDLIST structures, each of which uniquely identifies a file object or subfolder relative to
		/// the parent folder. Each item identifier list must contain exactly one SHITEMID structure followed by a terminating zero.
		/// </para>
		/// </param>
		/// <param name="pdtInner">
		/// <para>Type: <c>IDataObject*</c></para>
		/// <para>
		/// A pointer to interface IDataObject. This parameter can be <c>NULL</c>. Specify only if the data object created needs to support
		/// additional FORMATETC clipboard formats beyond the default formats it is assigned at creation. Alternatively, provide support for
		/// populating the created data object using non-default clipboard formats by calling method IDataObject::SetData and specifying the
		/// format in the <c>FORMATETC</c> structure passed in parameter .
		/// </para>
		/// </param>
		/// <param name="riid">
		/// <para>Type: <c>REFIID</c></para>
		/// <para>A reference to the IID of the interface to retrieve through . This must be IID_IDataObject.</para>
		/// </param>
		/// <param name="ppv">
		/// <para>Type: <c>void**</c></para>
		/// <para>When this method returns successfully, contains the IDataObject interface pointer requested in .</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HRESULT</c></para>
		/// <para>If this function succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// This function is typically called when implementing method IShellFolder::GetUIObjectOf. When an interface pointer of interface ID
		/// IID_IDataObject is requested (using parameter ), the implementer can return the interface pointer on the object created with
		/// <c>SHCreateDataObject</c> in response.
		/// </para>
		/// <para>
		/// This function supports the CFSTR_SHELLIDLIST (also known as HIDA) clipboard format and also has generic support for arbitrary
		/// clipboard formats through IDataObject::SetData. For more information on clipboard formats, see Shell Clipboard Formats.
		/// </para>
		/// <para>
		/// The new data object is intended to be used in operations such as drag-and-drop, in which the data is stored in the clipboard with
		/// a given format.
		/// </para>
		/// <para>
		/// We recommend that you use the IID_PPV_ARGS macro, defined in Objbase.h, to package the and parameters. This macro provides the
		/// correct IID based on the interface pointed to by the value in , which eliminates the possibility of a coding error in that could
		/// lead to unexpected results.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-shcreatedataobject
		// SHSTDAPI SHCreateDataObject( PCIDLIST_ABSOLUTE pidlFolder, UINT cidl, PCUITEMID_CHILD_ARRAY apidl, IDataObject *pdtInner, REFIID riid, void **ppv );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "d56cdafe-9463-43a5-8ef0-6cfaf0c524a8")]
		public static extern HRESULT SHCreateDataObject(PIDL pidlFolder, uint cidl, [In, MarshalAs(UnmanagedType.LPArray)] PIDL[] apidl, IDataObject pdtInner, [In, MarshalAs(UnmanagedType.LPStruct)] Guid riid, out IDataObject ppv);

		/// <summary>
		/// <para>Creates an object that represents the Shell's default context menu implementation.</para>
		/// </summary>
		/// <param name="pdcm">
		/// <para>Type: <c>const DEFCONTEXTMENU*</c></para>
		/// <para>A pointer to a constant DEFCONTEXTMENU structure.</para>
		/// </param>
		/// <param name="riid">
		/// <para>Type: <c>REFIID</c></para>
		/// <para>
		/// Reference to the interface ID of the interface on which to base the object. This is typically the IID of IContextMenu,
		/// IContextMenu2, or IContextMenu3.
		/// </para>
		/// </param>
		/// <param name="ppv">
		/// <para>Type: <c>void**</c></para>
		/// <para>When this method returns, contains the interface pointer requested in riid.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HRESULT</c></para>
		/// <para>If this function succeeds, it returns <c>S_OK</c>. Otherwise, it returns an <c>HRESULT</c> error code.</para>
		/// </returns>
		/// <remarks>
		/// <para>
		/// This function is typically used in the implementation of IShellFolder::GetUIObjectOf. <c>GetUIObjectOf</c> creates a context menu
		/// that merges IContextMenu handlers specified by the DEFCONTEXTMENU structure, and can optionally provide default context menu verb
		/// implementations such as open, explore, delete, and copy.
		/// </para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-shcreatedefaultcontextmenu
		// SHSTDAPI SHCreateDefaultContextMenu( const DEFCONTEXTMENU *pdcm, REFIID riid, void **ppv );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "055ff0a0-9ba7-463d-9684-3fd072b190da")]
		public static extern HRESULT SHCreateDefaultContextMenu(ref DEFCONTEXTMENU pdcm, [In, MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv);

		/// <summary>
		/// <para>
		/// [SHCreateDirectory is available for use in the operating systems specified in the Requirements section. It may be altered or
		/// unavailable in subsequent versions.]
		/// </para>
		/// <para>Creates a new file system folder.</para>
		/// </summary>
		/// <param name="hwnd">
		/// <para>Type: <c>HWND</c></para>
		/// <para>A handle to a parent window. This parameter can be set to <c>NULL</c> if no user interface is displayed.</para>
		/// </param>
		/// <param name="pszPath">
		/// <para>Type: <c>PCWSTR</c></para>
		/// <para>
		/// A pointer to a null-terminated Unicode string that contains the fully qualified path of the directory. This string should have no
		/// more than MAX_PATH characters, including the terminating null character.
		/// </para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>int</c></para>
		/// <para>
		/// Returns <c>ERROR_SUCCESS</c> if successful. If the operation fails, other error codes can be returned, including those listed
		/// here. For values not specifically listed, see System Error Codes.
		/// </para>
		/// <list type="table">
		/// <listheader>
		/// <term>Return code</term>
		/// <term>Description</term>
		/// </listheader>
		/// <item>
		/// <term>ERROR_BAD_PATHNAME</term>
		/// <term>The parameter was set to a relative path.</term>
		/// </item>
		/// <item>
		/// <term>ERROR_FILENAME_EXCED_RANGE</term>
		/// <term>The path pointed to by is too long.</term>
		/// </item>
		/// <item>
		/// <term>ERROR_FILE_EXISTS</term>
		/// <term>The directory exists.</term>
		/// </item>
		/// <item>
		/// <term>ERROR_ALREADY_EXISTS</term>
		/// <term>The directory exists.</term>
		/// </item>
		/// <item>
		/// <term>ERROR_CANCELLED</term>
		/// <term>The user canceled the operation.</term>
		/// </item>
		/// </list>
		/// </returns>
		/// <remarks>
		/// <para>
		/// This function creates a file system folder whose fully qualified path is given by . If one or more of the intermediate folders do
		/// not exist, it creates them.
		/// </para>
		/// <para>To set security attributes on a new folder, use SHCreateDirectoryEx.</para>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-shcreatedirectory
		// int SHCreateDirectory( HWND hwnd, PCWSTR pszPath );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "4927429c-f457-4dda-aa0d-236eb236795c")]
		public static extern Win32Error SHCreateDirectory([Optional] HandleRef hwnd, [MarshalAs(UnmanagedType.LPWStr)] string pszPath);

		/// <summary>
		/// <para>
		/// [This function is available through Windows XP Service Pack 2 (SP2) and Windows Server 2003. It might be altered or unavailable
		/// in subsequent versions of Windows.]
		/// </para>
		/// <para>Creates a new file system folder, with optional security attributes.</para>
		/// </summary>
		/// <param name="hwnd">
		/// <para>Type: <c>HWND</c></para>
		/// <para>A handle to a parent window. This parameter can be set to <c>NULL</c> if no user interface will be displayed.</para>
		/// </param>
		/// <param name="pszPath">
		/// <para>Type: <c>LPCTSTR</c></para>
		/// <para>
		/// A pointer to a null-terminated string specifying the fully qualified path of the directory. This string is of maximum length of
		/// 248 characters, including the terminating null character.
		/// </para>
		/// </param>
		/// <param name="psa">
		/// <para>Type: <c>const SECURITY_ATTRIBUTES*</c></para>
		/// <para>
		/// A pointer to a SECURITY_ATTRIBUTES structure with the directory's security attribute. Set this parameter to <c>NULL</c> if no
		/// security attributes need to be set.
		/// </para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>int</c></para>
		/// <para>
		/// Returns <c>ERROR_SUCCESS</c> if successful. If the operation fails, other error codes can be returned, including those listed
		/// here. For values not specifically listed, see System Error Codes.
		/// </para>
		/// <list type="table">
		/// <listheader>
		/// <term>Return code</term>
		/// <term>Description</term>
		/// </listheader>
		/// <item>
		/// <term>ERROR_BAD_PATHNAME</term>
		/// <term>The parameter was set to a relative path.</term>
		/// </item>
		/// <item>
		/// <term>ERROR_FILENAME_EXCED_RANGE</term>
		/// <term>The path pointed to by is too long.</term>
		/// </item>
		/// <item>
		/// <term>ERROR_PATH_NOT_FOUND</term>
		/// <term>The system cannot find the path pointed to by . The path may contain an invalid entry.</term>
		/// </item>
		/// <item>
		/// <term>ERROR_FILE_EXISTS</term>
		/// <term>The directory exists.</term>
		/// </item>
		/// <item>
		/// <term>ERROR_ALREADY_EXISTS</term>
		/// <term>The directory exists.</term>
		/// </item>
		/// <item>
		/// <term>ERROR_CANCELLED</term>
		/// <term>The user canceled the operation.</term>
		/// </item>
		/// </list>
		/// </returns>
		/// <remarks>
		/// <para>
		/// This function creates a file system folder whose fully qualified path is given by . If one or more of the intermediate folders do
		/// not exist, they are created as well. <c>SHCreateDirectoryEx</c> also verifies that the files are visible. If they are not
		/// visible, expect one of the following:
		/// </para>
		/// <list type="bullet">
		/// <item>
		/// If is set to a valid window handle, a message box is displayed warning the user that he or she might not be able to access the
		/// files. If the user chooses not to proceed, the function returns <c>ERROR_CANCELLED</c>.
		/// </item>
		/// <item>If is set to <c>NULL</c>, no user interface is displayed and the function returns <c>ERROR_CANCELLED</c>.</item>
		/// </list>
		/// </remarks>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/nf-shlobj_core-shcreatedirectoryexa
		// int SHCreateDirectoryEx( HWND hwnd, LPCTSTR pszPath, const SECURITY_ATTRIBUTES *psa );
		[DllImport(Lib.Shell32, SetLastError = false, CharSet = CharSet.Auto)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "7f44f907-cd12-4156-91c0-76e577ae25f6")]
		public static extern Win32Error SHCreateDirectoryEx([Optional] HandleRef hwnd, string pszPath, [In] SECURITY_ATTRIBUTES psa);

		/// <summary>
		/// <para>[</para>
		/// <para>SHCreateFileExtractIcon</para>
		/// <para>
		/// is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in
		/// subsequent versions.]
		/// </para>
		/// <para>
		/// Creates a default IExtractIcon handler for a file system object. Namespace extensions that display file system objects typically
		/// use this function. The extension and file attributes derive all that is needed for a simple icon extractor.
		/// </para>
		/// </summary>
		/// <param name="pszFile">
		/// <para>Type: <c>LPCTSTR</c></para>
		/// <para>
		/// A pointer to a null-terminated string that specifies the file system object. The buffer must not exceed MAX_PATH characters in length.
		/// </para>
		/// </param>
		/// <param name="dwFileAttributes">
		/// <para>Type: <c>DWORD</c></para>
		/// <para>
		/// A combination of one or more file attribute flags (FILE_ATTRIBUTE_* values as defined in Winnt.h) that specify the type of object.
		/// </para>
		/// </param>
		/// <param name="riid">
		/// <para>Type: <c>REFIID</c></para>
		/// <para>
		/// Reference to the desired interface ID of the icon extractor interface to create. This must be either IID_IExtractIconA or IID_IExtractIconW.
		/// </para>
		/// </param>
		/// <param name="ppv">
		/// <para>Type: <c>void**</c></para>
		/// <para>When this function returns, contains the interface pointer requested in . This is typically IExtractIcon.</para>
		/// </param>
		/// <returns>
		/// <para>Type: <c>HRESULT</c></para>
		/// <para>If this 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/desktop/api/shlobj_core/nf-shlobj_core-shcreatefileextracticonw
		// SHSTDAPI SHCreateFileExtractIconW( LPCWSTR pszFile, DWORD dwFileAttributes, REFIID riid, void **ppv );
		[DllImport(Lib.Shell32, SetLastError = false, ExactSpelling = true)]
		[PInvokeData("shlobj_core.h", MSDNShortId = "af3beb0a-892b-43e5-b5b8-8005f497b6e5")]
		public static extern HRESULT SHCreateFileExtractIconW([MarshalAs(UnmanagedType.LPWStr)] string pszFile, FileFlagsAndAttributes dwFileAttributes, [In, MarshalAs(UnmanagedType.LPStruct)] Guid riid, [MarshalAs(UnmanagedType.IUnknown)] out object ppv);

		/// <summary>Creates a new instance of the default Shell folder view object (DefView).</summary>
		/// <param name="pcsfv">Pointer to a SFV_CREATE structure that describes the particulars used in creating this instance of the Shell folder view object.</param>
		/// <param name="ppsv">When this function returns successfully, contains an interface pointer to the new IShellView object. On failure, this value is NULL.</param>
		/// <returns>If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.</returns>
		[DllImport(Lib.Shell32, CharSet = CharSet.Auto)]
		[PInvokeData("Shlobj.h")]
		public static extern HRESULT SHCreateShellFolderView(ref SFV_CREATE pcsfv, out IShellView ppsv);

		/// <summary>Provides a default handler to extract an icon from a file.</summary>
		/// <param name="pszIconFile">A pointer to a null-terminated buffer that contains the path and name of the file from which the icon is extracted.</param>
		/// <param name="iIndex">
		/// The location of the icon within the file named in pszIconFile. If this is a positive number, it refers to the zero-based position of the icon in the
		/// file. For instance, 0 refers to the 1st icon in the resource file and 2 refers to the 3rd. If this is a negative number, it refers to the icon's
		/// resource ID.
		/// </param>
		/// <param name="uFlags">A flag that controls the icon extraction.</param>
		/// <param name="phiconLarge">
		/// A pointer to an HICON that, when this function returns successfully, receives the handle of the large version of the icon specified in the LOWORD of
		/// nIconSize. This value can be NULL.
		/// </param>
		/// <param name="phiconSmall">
		/// A pointer to an HICON that, when this function returns successfully, receives the handle of the small version of the icon specified in the HIWORD of nIconSize.
		/// </param>
		/// <param name="nIconSize">
		/// A value that contains the large icon size in its LOWORD and the small icon size in its HIWORD. Size is measured in pixels. Pass 0 to specify default
		/// large and small sizes.
		/// </param>
		[DllImport(Lib.Shell32, CharSet = CharSet.Auto)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762149")]
		public static extern HRESULT SHDefExtractIcon(string pszIconFile, int iIndex, uint uFlags, ref IntPtr phiconLarge,
			ref IntPtr phiconSmall, uint nIconSize);

		/// <summary>Provides a default handler to extract an icon from a file.</summary>
		/// <param name="pszIconFile">A pointer to a null-terminated buffer that contains the path and name of the file from which the icon is extracted.</param>
		/// <param name="iIndex">
		/// The location of the icon within the file named in pszIconFile. If this is a positive number, it refers to the zero-based position of the icon in the
		/// file. For instance, 0 refers to the 1st icon in the resource file and 2 refers to the 3rd. If this is a negative number, it refers to the icon's
		/// resource ID.
		/// </param>
		/// <param name="uFlags">A flag that controls the icon extraction.</param>
		/// <param name="phiconLarge">
		/// A pointer to an HICON that, when this function returns successfully, receives the handle of the large version of the icon specified in the LOWORD of
		/// nIconSize. This value can be NULL.
		/// </param>
		/// <param name="phiconSmall">
		/// A pointer to an HICON that, when this function returns successfully, receives the handle of the small version of the icon specified in the HIWORD of nIconSize.
		/// </param>
		/// <param name="nIconSize">
		/// A value that contains the large icon size in its LOWORD and the small icon size in its HIWORD. Size is measured in pixels. Pass 0 to specify default
		/// large and small sizes.
		/// </param>
		[DllImport(Lib.Shell32, CharSet = CharSet.Auto)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762149")]
		public static extern HRESULT SHDefExtractIcon(string pszIconFile, int iIndex, uint uFlags, IntPtr phiconLarge,
			ref IntPtr phiconSmall, uint nIconSize);

		/// <summary>Retrieves extended property data from a relative identifier list.</summary>
		/// <param name="psf">
		/// The address of the parent IShellFolder interface. This must be the immediate parent of the ITEMIDLIST structure referenced by the pidl parameter.
		/// </param>
		/// <param name="pidl">A pointer to an ITEMIDLIST structure that identifies the object relative to the folder specified in psf.</param>
		/// <param name="nFormat">The format in which the data is being requested.</param>
		/// <param name="pv">
		/// A pointer to a buffer that, when this function returns successfully, receives the requested data. The format of this buffer is determined by nFormat.
		/// <para>
		/// If nFormat is SHGDFIL_NETRESOURCE, there are two possible cases. If the buffer is large enough, the net resource's string information (fields for the
		/// network name, local name, provider, and comments) will be placed into the buffer. If the buffer is not large enough, only the net resource structure
		/// will be placed into the buffer and the string information pointers will be NULL.
		/// </para>
		/// </param>
		/// <param name="cb">Size of the buffer at pv, in bytes.</param>
		/// <remarks>
		/// This function extracts only information that is present in the pointer to an item identifier list (PIDL). Since the content of a PIDL depends on the
		/// folder object that created the PIDL, there is no guarantee that all requested information will be available. In addition, the information that is
		/// returned reflects the state of the object at the time the PIDL was created. The current state of the object could be different. For example, if you
		/// set nFormat to SHGDFIL_FINDDATA, the function might assign meaningful values to only some of the members of the WIN32_FIND_DATA structure. The
		/// remaining members will be set to zero. To retrieve complete current information on a file system file or folder, use standard file system functions
		/// such as GetFileTime or FindFirstFile.
		/// <para>
		/// E_INVALIDARG is returned if the psf, pidl, pv, or cb parameter does not match the nFormat parameter, or if nFormat is not one of the specific
		/// SHGDFIL_ values shown above.
		/// </para>
		/// </remarks>
		[DllImport(Lib.Shell32, CharSet = CharSet.Auto)]
		[SecurityCritical, SuppressUnmanagedCodeSecurity]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762174")]
		public static extern HRESULT SHGetDataFromIDList([In, MarshalAs(UnmanagedType.Interface)]
			IShellFolder psf, [In] PIDL pidl, SHGetDataFormat nFormat, [In, Out] IntPtr pv, int cb);

		/// <summary>Retrieves the IShellFolder interface for the desktop folder, which is the root of the Shell's namespace.</summary>
		/// <param name="ppv">
		/// When this method returns, receives an IShellFolder interface pointer for the desktop folder. The calling application is responsible for eventually
		/// freeing the interface by calling its IUnknown::Release method.
		/// </param>
		/// <returns>If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.</returns>
		[DllImport(Lib.Shell32, CharSet = CharSet.Unicode, ExactSpelling = true)]
		[SecurityCritical, SuppressUnmanagedCodeSecurity]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762175")]
		public static extern HRESULT SHGetDesktopFolder([MarshalAs(UnmanagedType.Interface)] out IShellFolder ppv);

		/// <summary>Deprecated. Retrieves the path of a folder as an ITEMIDLIST structure.</summary>
		/// <param name="hwndOwner">Reserved.</param>
		/// <param name="nFolder">
		/// A CSIDL value that identifies the folder to be located. The folders associated with the CSIDLs might not exist on a particular system.
		/// </param>
		/// <param name="hToken">
		/// An access token that can be used to represent a particular user. It is usually set to NULL, but it may be needed when there are multiple users for
		/// those folders that are treated as belonging to a single user. The most commonly used folder of this type is My Documents. The calling application is
		/// responsible for correct impersonation when hToken is non-NULL. It must have appropriate security privileges for the particular user, and the user's
		/// registry hive must be currently mounted.
		/// <para>
		/// Assigning the hToken parameter a value of -1 indicates the Default User. This allows clients of SHGetFolderLocation to find folder locations (such as
		/// the Desktop folder) for the Default User. The Default User user profile is duplicated when any new user account is created, and includes special
		/// folders such as My Documents and Desktop. Any items added to the Default User folder also appear in any new user account.
		/// </para>
		/// </param>
		/// <param name="dwReserved">Reserved.</param>
		/// <param name="ppidl">
		/// The address of a pointer to an item identifier list structure that specifies the folder's location relative to the root of the namespace (the
		/// desktop). The ppidl parameter is set to NULL on failure. The calling application is responsible for freeing this resource by calling CoTaskMemFree.
		/// </param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762180")]
		public static extern HRESULT SHGetFolderLocation(IntPtr hwndOwner, int nFolder, SafeTokenHandle hToken,
			int dwReserved, out PIDL ppidl);

		/// <summary>
		/// Deprecated. Gets the path of a folder identified by a CSIDL value. <note>As of Windows Vista, this function is merely a wrapper for
		/// SHGetKnownFolderPath. The CSIDL value is translated to its associated KNOWNFOLDERID and then SHGetKnownFolderPath is called. New applications should
		/// use the known folder system rather than the older CSIDL system, which is supported only for backward compatibility.</note>
		/// </summary>
		/// <param name="hwndOwner">Reserved.</param>
		/// <param name="nFolder">
		/// A CSIDL value that identifies the folder whose path is to be retrieved. Only real folders are valid. If a virtual folder is specified, this function
		/// fails. You can force creation of a folder by combining the folder's CSIDL with CSIDL_FLAG_CREATE.
		/// </param>
		/// <param name="hToken">
		/// An access token that represents a particular user. If this parameter is NULL, which is the most common usage, the function requests the known folder
		/// for the current user.
		/// <para>
		/// Request a specific user's folder by passing the hToken of that user. This is typically done in the context of a service that has sufficient
		/// privileges to retrieve the token of a given user. That token must be opened with TOKEN_QUERY and TOKEN_IMPERSONATE rights. In some cases, you also
		/// need to include TOKEN_DUPLICATE. In addition to passing the user's hToken, the registry hive of that specific user must be mounted. See Access
		/// Control for further discussion of access control issues.
		/// </para>
		/// <para>
		/// Assigning the hToken parameter a value of -1 indicates the Default User. This allows clients of SHGetKnownFolderPath to find folder locations (such
		/// as the Desktop folder) for the Default User. The Default User user profile is duplicated when any new user account is created, and includes special
		/// folders such as Documents and Desktop. Any items added to the Default User folder also appear in any new user account. Note that access to the
		/// Default User folders requires administrator privileges.
		/// </para>
		/// </param>
		/// <param name="dwFlags">
		/// Flags that specify the path to be returned. This value is used in cases where the folder associated with a KNOWNFOLDERID (or CSIDL) can be moved,
		/// renamed, redirected, or roamed across languages by a user or administrator.
		/// <para>
		/// The known folder system that underlies SHGetFolderPath allows users or administrators to redirect a known folder to a location that suits their
		/// needs. This is achieved by calling IKnownFolderManager::Redirect, which sets the "current" value of the folder associated with the SHGFP_TYPE_CURRENT flag.
		/// </para>
		/// <para>
		/// The default value of the folder, which is the location of the folder if a user or administrator had not redirected it elsewhere, is retrieved by
		/// specifying the SHGFP_TYPE_DEFAULT flag. This value can be used to implement a "restore defaults" feature for a known folder.
		/// </para>
		/// <para>
		/// For example, the default value (SHGFP_TYPE_DEFAULT) for FOLDERID_Music (CSIDL_MYMUSIC) is "C:\Users\user name\Music". If the folder was redirected,
		/// the current value (SHGFP_TYPE_CURRENT) might be "D:\Music". If the folder has not been redirected, then SHGFP_TYPE_DEFAULT and SHGFP_TYPE_CURRENT
		/// retrieve the same path.
		/// </para>
		/// </param>
		/// <param name="pszPath">
		/// A pointer to a null-terminated string of length MAX_PATH which will receive the path. If an error occurs or S_FALSE is returned, this string will be
		/// empty. The returned path does not include a trailing backslash. For example, "C:\Users" is returned rather than "C:\Users\".
		/// </param>
		[DllImport(Lib.Shell32, CharSet = CharSet.Auto)]
		[SecurityCritical, SuppressUnmanagedCodeSecurity]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762181")]
		public static extern HRESULT SHGetFolderPath(IntPtr hwndOwner, int nFolder, [In, Optional] SafeTokenHandle hToken,
			SHGFP dwFlags, [Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszPath);

		/// <summary>
		/// Retrieves the full path of a known folder identified by the folder's KNOWNFOLDERID. This extends SHGetKnownFolderPath by allowing you to set the
		/// initial size of the string buffer.
		/// </summary>
		/// <param name="rfid">A reference to the KNOWNFOLDERID that identifies the folder.</param>
		/// <param name="dwFlags">Flags that specify special retrieval options. This value can be 0; otherwise, one or more of the KNOWN_FOLDER_FLAG values.</param>
		/// <param name="hToken">
		/// An access token that represents a particular user. If this parameter is NULL, which is the most common usage, the function requests the known folder
		/// for the current user.
		/// <para>
		/// Request a specific user's folder by passing the hToken of that user. This is typically done in the context of a service that has sufficient
		/// privileges to retrieve the token of a given user. That token must be opened with TOKEN_QUERY and TOKEN_IMPERSONATE rights. In some cases, you also
		/// need to include TOKEN_DUPLICATE. In addition to passing the user's hToken, the registry hive of that specific user must be mounted. See Access
		/// Control for further discussion of access control issues.
		/// </para>
		/// <para>
		/// Assigning the hToken parameter a value of -1 indicates the Default User. This allows clients of SHGetKnownFolderPath to find folder locations (such
		/// as the Desktop folder) for the Default User. The Default User user profile is duplicated when any new user account is created, and includes special
		/// folders such as Documents and Desktop. Any items added to the Default User folder also appear in any new user account. Note that access to the
		/// Default User folders requires administrator privileges.
		/// </para>
		/// </param>
		/// <param name="pszPath">
		/// A null-terminated, Unicode string. This buffer must be of size cchPath. When SHGetFolderPathEx returns successfully, this parameter contains the path
		/// for the known folder.
		/// </param>
		/// <param name="cchPath">The size of the ppszPath buffer, in characters.</param>
		[DllImport(Lib.Shell32, CharSet = CharSet.Unicode, ExactSpelling = true)]
		[SecurityCritical, SuppressUnmanagedCodeSecurity]
		[PInvokeData("Shlobj.h", MSDNShortId = "mt757093")]
		public static extern HRESULT SHGetFolderPathEx([In, MarshalAs(UnmanagedType.LPStruct)]
			Guid rfid, KNOWN_FOLDER_FLAG dwFlags, [In, Optional] SafeTokenHandle hToken,
			[Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszPath, uint cchPath);

		/// <summary>Retrieves the pointer to an item identifier list (PIDL) of an object.</summary>
		/// <param name="iUnknown">A pointer to the IUnknown of the object from which to get the PIDL.</param>
		/// <param name="ppidl">When this function returns, contains a pointer to the PIDL of the given object.</param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762184")]
		public static extern HRESULT SHGetIDListFromObject([MarshalAs(UnmanagedType.IUnknown)] object iUnknown,
			out PIDL ppidl);

		/// <summary>Retrieves an image list.</summary>
		/// <param name="iImageList">The image type contained in the list.</param>
		/// <param name="riid">Reference to the image list interface identifier, normally IID_IImageList.</param>
		/// <param name="ppv">When this method returns, contains the interface pointer requested in riid. This is typically IImageList.</param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762185")]
		public static extern HRESULT SHGetImageList(SHIL iImageList, [MarshalAs(UnmanagedType.LPStruct)] Guid riid,
			out IImageList ppv);

		/// <summary>Retrieves the path of a known folder as an ITEMIDLIST structure.</summary>
		/// <param name="rfid">
		/// A reference to the KNOWNFOLDERID that identifies the folder. The folders associated with the known folder IDs might not exist on a particular system.
		/// </param>
		/// <param name="dwFlags">
		/// Flags that specify special retrieval options. This value can be 0; otherwise, it is one or more of the KNOWN_FOLDER_FLAG values.
		/// </param>
		/// <param name="hToken">
		/// An access token used to represent a particular user. This parameter is usually set to NULL, in which case the function tries to access the current
		/// user's instance of the folder. However, you may need to assign a value to hToken for those folders that can have multiple users but are treated as
		/// belonging to a single user. The most commonly used folder of this type is Documents.
		/// <para>
		/// The calling application is responsible for correct impersonation when hToken is non-null. It must have appropriate security privileges for the
		/// particular user, including TOKEN_QUERY and TOKEN_IMPERSONATE, and the user's registry hive must be currently mounted. See Access Control for further
		/// discussion of access control issues.
		/// </para>
		/// <para>
		/// Assigning the hToken parameter a value of -1 indicates the Default User. This allows clients of SHGetKnownFolderIDList to find folder locations (such
		/// as the Desktop folder) for the Default User. The Default User user profile is duplicated when any new user account is created, and includes special
		/// folders such as Documents and Desktop. Any items added to the Default User folder also appear in any new user account. Note that access to the
		/// Default User folders requires administrator privileges.
		/// </para>
		/// </param>
		/// <param name="ppidl">
		/// When this method returns, contains a pointer to the PIDL of the folder. This parameter is passed uninitialized. The caller is responsible for freeing
		/// the returned PIDL when it is no longer needed by calling ILFree.
		/// </param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762187")]
		public static extern HRESULT SHGetKnownFolderIDList([In, MarshalAs(UnmanagedType.LPStruct)]
			Guid rfid, KNOWN_FOLDER_FLAG dwFlags, [In, Optional] SafeTokenHandle hToken, out PIDL ppidl);

		/// <summary>Retrieves an IShellItem object that represents a known folder.</summary>
		/// <param name="rfid">A reference to the KNOWNFOLDERID, a GUID that identifies the folder that contains the item.</param>
		/// <param name="dwFlags">
		/// Flags that specify special options used in the retrieval of the known folder IShellItem. This value can be KF_FLAG_DEFAULT; otherwise, one or more of
		/// the KNOWN_FOLDER_FLAG values.
		/// </param>
		/// <param name="hToken">
		/// An access token used to represent a particular user. This parameter is usually set to NULL, in which case the function tries to access the current
		/// user's instance of the folder. However, you may need to assign a value to hToken for those folders that can have multiple users but are treated as
		/// belonging to a single user. The most commonly used folder of this type is Documents.
		/// <para>
		/// The calling application is responsible for correct impersonation when hToken is non-null. It must have appropriate security privileges for the
		/// particular user, including TOKEN_QUERY and TOKEN_IMPERSONATE, and the user's registry hive must be currently mounted. See Access Control for further
		/// discussion of access control issues.
		/// </para>
		/// <para>
		/// Assigning the hToken parameter a value of -1 indicates the Default User. This allows clients of SHGetKnownFolderIDList to find folder locations (such
		/// as the Desktop folder) for the Default User. The Default User user profile is duplicated when any new user account is created, and includes special
		/// folders such as Documents and Desktop. Any items added to the Default User folder also appear in any new user account. Note that access to the
		/// Default User folders requires administrator privileges.
		/// </para>
		/// </param>
		/// <param name="riid">A reference to the IID of the interface that represents the item, usually IID_IShellItem or IID_IShellItem2.</param>
		/// <param name="ppv">When this method returns, contains the interface pointer requested in riid.</param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[PInvokeData("Shlobj.h", MSDNShortId = "dd378429")]
		public static extern HRESULT SHGetKnownFolderItem([In, MarshalAs(UnmanagedType.LPStruct)]
			Guid rfid, KNOWN_FOLDER_FLAG dwFlags, [In, Optional] SafeTokenHandle hToken,
			[In, MarshalAs(UnmanagedType.LPStruct)]
			Guid riid, [MarshalAs(UnmanagedType.Interface)] out object ppv);

		/// <summary>Retrieves the full path of a known folder identified by the folder's KNOWNFOLDERID.</summary>
		/// <param name="rfid">A reference to the KNOWNFOLDERID that identifies the folder.</param>
		/// <param name="dwFlags">Flags that specify special retrieval options. This value can be 0; otherwise, one or more of the KNOWN_FOLDER_FLAG values.</param>
		/// <param name="hToken">
		/// An access token that represents a particular user. If this parameter is NULL, which is the most common usage, the function requests the known folder
		/// for the current user.
		/// <para>
		/// Request a specific user's folder by passing the hToken of that user. This is typically done in the context of a service that has sufficient
		/// privileges to retrieve the token of a given user. That token must be opened with TOKEN_QUERY and TOKEN_IMPERSONATE rights. In some cases, you also
		/// need to include TOKEN_DUPLICATE. In addition to passing the user's hToken, the registry hive of that specific user must be mounted. See Access
		/// Control for further discussion of access control issues.
		/// </para>
		/// <para>
		/// Assigning the hToken parameter a value of -1 indicates the Default User. This allows clients of SHGetKnownFolderPath to find folder locations (such
		/// as the Desktop folder) for the Default User. The Default User user profile is duplicated when any new user account is created, and includes special
		/// folders such as Documents and Desktop. Any items added to the Default User folder also appear in any new user account. Note that access to the
		/// Default User folders requires administrator privileges.
		/// </para>
		/// </param>
		/// <param name="pszPath">
		/// When this method returns, contains the address of a pointer to a null-terminated Unicode string that specifies the path of the known folder. The
		/// calling process is responsible for freeing this resource once it is no longer needed by calling CoTaskMemFree. The returned path does not include a
		/// trailing backslash. For example, "C:\Users" is returned rather than "C:\Users\".
		/// </param>
		/// <returns>Returns S_OK if successful, or an error value otherwise.</returns>
		/// <remarks>This function replaces SHGetFolderPath. That older function is now simply a wrapper for SHGetKnownFolderPath.</remarks>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762188")]
		public static extern HRESULT SHGetKnownFolderPath([MarshalAs(UnmanagedType.LPStruct)] Guid rfid,
			KNOWN_FOLDER_FLAG dwFlags, [In, Optional] SafeTokenHandle hToken, out SafeCoTaskMemHandle pszPath);

		/// <summary>Retrieves the full path of a known folder identified by the folder's KNOWNFOLDERID.</summary>
		/// <param name="id">A reference to the KNOWNFOLDERID that identifies the folder.</param>
		/// <param name="dwFlags">Flags that specify special retrieval options. This value can be 0; otherwise, one or more of the KNOWN_FOLDER_FLAG values.</param>
		/// <param name="hToken">
		/// An access token that represents a particular user. If this parameter is NULL, which is the most common usage, the function requests the known folder
		/// for the current user.
		/// <para>
		/// Request a specific user's folder by passing the hToken of that user. This is typically done in the context of a service that has sufficient
		/// privileges to retrieve the token of a given user. That token must be opened with TOKEN_QUERY and TOKEN_IMPERSONATE rights. In some cases, you also
		/// need to include TOKEN_DUPLICATE. In addition to passing the user's hToken, the registry hive of that specific user must be mounted. See Access
		/// Control for further discussion of access control issues.
		/// </para>
		/// <para>
		/// Assigning the hToken parameter a value of -1 indicates the Default User. This allows clients of SHGetKnownFolderPath to find folder locations (such
		/// as the Desktop folder) for the Default User. The Default User user profile is duplicated when any new user account is created, and includes special
		/// folders such as Documents and Desktop. Any items added to the Default User folder also appear in any new user account. Note that access to the
		/// Default User folders requires administrator privileges.
		/// </para>
		/// </param>
		/// <returns>String that specifies the path of the known folder.</returns>
		/// <remarks>This function replaces SHGetFolderPath. That older function is now simply a wrapper for SHGetKnownFolderPath.</remarks>
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762188")]
		public static string SHGetKnownFolderPath(KNOWNFOLDERID id, KNOWN_FOLDER_FLAG dwFlags, SafeTokenHandle hToken = null)
		{
			SHGetKnownFolderPath(id.Guid(), dwFlags, hToken ?? SafeTokenHandle.Null, out SafeCoTaskMemHandle path);
			return path.ToString(-1);
		}

		/// <summary>Retrieves the display name of an item identified by its IDList.</summary>
		/// <param name="pidl">A PIDL that identifies the item.</param>
		/// <param name="sigdnName">A value from the SIGDN enumeration that specifies the type of display name to retrieve.</param>
		/// <param name="ppszName">A value that, when this function returns successfully, receives the address of a pointer to the retrieved display name.</param>
		[DllImport(Lib.Shell32, ExactSpelling = true, CharSet = CharSet.Unicode)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762191")]
		public static extern HRESULT SHGetNameFromIDList(PIDL pidl, SIGDN sigdnName, out SafeCoTaskMemHandle ppszName);

		/// <summary>Converts an item identifier list to a file system path.</summary>
		/// <param name="pidl">
		/// The address of an item identifier list that specifies a file or directory location relative to the root of the namespace (the desktop).
		/// </param>
		/// <param name="pszPath">The address of a buffer to receive the file system path. This buffer must be at least MAX_PATH characters in size.</param>
		/// <returns>Returns TRUE if successful; otherwise, FALSE.</returns>
		[DllImport(Lib.Shell32, CharSet = CharSet.Auto)]
		[return: MarshalAs(UnmanagedType.Bool)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762194")]
		public static extern bool SHGetPathFromIDList(PIDL pidl, [MarshalAs(UnmanagedType.LPTStr)] StringBuilder pszPath);

		/// <summary>Opens a Windows Explorer window with specified items in a particular folder selected.</summary>
		/// <param name="pidlFolder">A pointer to a fully qualified item ID list that specifies the folder.</param>
		/// <param name="cidl">
		/// A count of items in the selection array, apidl. If cidl is zero, then pidlFolder must point to a fully specified ITEMIDLIST describing a single item
		/// to select. This function opens the parent folder and selects that item.
		/// </param>
		/// <param name="apidl">A pointer to an array of PIDL structures, each of which is an item to select in the target folder referenced by pidlFolder.</param>
		/// <param name="dwFlags">The optional flags. Under Windows XP this parameter is ignored. In Windows Vista, the following flags are defined.</param>
		[DllImport(Lib.Shell32, ExactSpelling = true)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762232")]
		public static extern HRESULT SHOpenFolderAndSelectItems(PIDL pidlFolder, uint cidl,
			[In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)] IntPtr[] apidl, OFASI dwFlags);

		/// <summary>
		/// Translates a Shell namespace object's display name into an item identifier list and returns the attributes of the object. This function is the
		/// preferred method to convert a string to a pointer to an item identifier list (PIDL).
		/// </summary>
		/// <param name="pszName">A pointer to a zero-terminated wide string that contains the display name to parse.</param>
		/// <param name="pbc">A bind context that controls the parsing operation. This parameter is normally set to NULL.</param>
		/// <param name="ppidl">
		/// The address of a pointer to a variable of type ITEMIDLIST that receives the item identifier list for the object. If an error occurs, then this
		/// parameter is set to NULL.
		/// </param>
		/// <param name="sfgaoIn">
		/// A ULONG value that specifies the attributes to query. To query for one or more attributes, initialize this parameter with the flags that represent
		/// the attributes of interest. For a list of available SFGAO flags, see IShellFolder::GetAttributesOf.
		/// </param>
		/// <param name="psfgaoOut">
		/// A pointer to a ULONG. On return, those attributes that are true for the object and were requested in sfgaoIn are set. An object's attribute flags can
		/// be zero or a combination of SFGAO flags. For a list of available SFGAO flags, see IShellFolder::GetAttributesOf.
		/// </param>
		[DllImport(Lib.Shell32, CharSet = CharSet.Unicode, ExactSpelling = true)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb762236")]
		public static extern HRESULT SHParseDisplayName([MarshalAs(UnmanagedType.LPWStr)] string pszName,
			[In, Optional] IntPtr pbc, out PIDL ppidl, SFGAO sfgaoIn, out SFGAO psfgaoOut);

		/// <summary>
		/// <para>
		/// [CABINETSTATE is available for use in the operating systems specified in the Requirements section. It may be altered or
		/// unavailable in subsequent versions.]
		/// </para>
		/// <para>
		/// Holds the global configuration for Windows Explorer and Windows Internet Explorer. This structure is used in the ReadCabinetState
		/// and WriteCabinetState functions.
		/// </para>
		/// </summary>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/ns-shlobj_core-cabinetstate
		// typedef struct CABINETSTATE { WORD cLength; WORD nVersion; BOOL fFullPathTitle : 1; BOOL fSaveLocalView : 1; BOOL fNotShell : 1; BOOL fSimpleDefault : 1; BOOL fDontShowDescBar : 1; BOOL fNewWindowMode : 1; BOOL fShowCompColor : 1; BOOL fDontPrettyNames : 1; BOOL fAdminsCreateCommonGroups : 1; UINT fUnusedFlags : 7; UINT fMenuEnumFilter; } *LPCABINETSTATE;
		[PInvokeData("shlobj_core.h", MSDNShortId = "4b82b6a8-c4c0-4af2-9612-0551376c1c62")]
		[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
		public struct CABINETSTATE
		{
			/// <summary><para>Type: <c>WORD</c></para><para>The size of the structure, in bytes.</para></summary>
			public ushort cLength;
			/// <summary><para>Type: <c>WORD</c></para></summary>
			public ushort nVersion;
			private ushort fFlags;
			/// <summary><para>Type: <c>UINT</c></para><para>One or both of the following flags.</para><para>SHCONTF_FOLDERS</para><para>Display folders.</para><para>SHCONTF_NONFOLDERS</para><para>Display non-folder items.</para></summary>
			public SHCONTF fMenuEnumFilter;

			/// <summary><para>Type: <c>BOOL</c></para><para>TRUE</para><para>Display the full path in the title bar.</para><para>FALSE</para><para>Display only the file name in the title bar.</para></summary>
			public bool fFullPathTitle { get => (fFlags & 1 << 0) != 0; set { if (value) fFlags |= 1 << 0; else { int i = fFlags; i &= ~(1 << 0); fFlags = (ushort)i; } } }
			/// <summary><para>Type: <c>BOOL</c></para><para>TRUE</para><para>Remember each folder&#39;s view settings.</para><para>FALSE</para><para>Use global settings for all folders.</para></summary>
			public bool fSaveLocalView { get => (fFlags & 1 << 1) != 0; set { if (value) fFlags |= 1 << 1; else { int i = fFlags; i &= ~(1 << 1); fFlags = (ushort)i; } } }
			/// <summary><para>Type: <c>BOOL</c></para><para>Not used.</para></summary>
			public bool fNotShell { get => (fFlags & 1 << 2) != 0; set { if (value) fFlags |= 1 << 2; else { int i = fFlags; i &= ~(1 << 2); fFlags = (ushort)i; } } }
			/// <summary><para>Type: <c>BOOL</c></para><para>Not used.</para></summary>
			public bool fSimpleDefault { get => (fFlags & 1 << 3) != 0; set { if (value) fFlags |= 1 << 3; else { int i = fFlags; i &= ~(1 << 3); fFlags = (ushort)i; } } }
			/// <summary><para>Type: <c>BOOL</c></para><para>Not used.</para></summary>
			public bool fDontShowDescBar { get => (fFlags & 1 << 4) != 0; set { if (value) fFlags |= 1 << 4; else { int i = fFlags; i &= ~(1 << 4); fFlags = (ushort)i; } } }
			/// <summary><para>Type: <c>BOOL</c></para><para>TRUE</para><para>Display in a new window.</para><para>FALSE</para><para>Display in the current window.</para></summary>
			public bool fNewWindowMode { get => (fFlags & 1 << 5) != 0; set { if (value) fFlags |= 1 << 5; else { int i = fFlags; i &= ~(1 << 5); fFlags = (ushort)i; } } }
			/// <summary><para>Type: <c>BOOL</c></para><para>TRUE</para><para>Show encrypted or compressed NTFS files in color.</para><para>FALSE</para><para>Do not show encrypted or compressed NTFS files in color.</para></summary>
			public bool fShowCompColor { get => (fFlags & 1 << 6) != 0; set { if (value) fFlags |= 1 << 6; else { int i = fFlags; i &= ~(1 << 6); fFlags = (ushort)i; } } }
			/// <summary><para>Type: <c>BOOL</c></para><para>Not used.</para></summary>
			public bool fDontPrettyNames { get => (fFlags & 1 << 7) != 0; set { if (value) fFlags |= 1 << 7; else { int i = fFlags; i &= ~(1 << 7); fFlags = (ushort)i; } } }
			/// <summary><para>Type: <c>BOOL</c></para><para>Used when an administrator installs an application that places an icon in the <c>Start</c> menu.</para><para>TRUE</para><para>Add the icon to the <c>Start</c> menu for all users (CSIDL_COMMON_STARTMENU). This is the default value.</para><para>FALSE</para><para>Add the icon to only the current user (CSIDL_STARTMENU).</para></summary>
			public bool fAdminsCreateCommonGroups { get => (fFlags & 1 << 8) != 0; set { if (value) fFlags |= 1 << 8; else { int i = fFlags; i &= ~(1 << 8); fFlags = (ushort)i; } } }
		}

		/// <summary>
		/// Defines the coordinates of a character cell in a console screen buffer. The origin of the coordinate system (0,0) is at the top, left cell of the buffer.
		/// </summary>
		[PInvokeData("wincon.h")]
		[StructLayout(LayoutKind.Sequential, Pack = 2)]
		public struct COORD
		{
			/// <summary>The horizontal coordinate or column value. The units depend on the function call.</summary>
			public short X;

			/// <summary>The vertical coordinate or row value. The units depend on the function call.</summary>
			public short Y;
		}

		/// <summary>Serves as the header for some of the extra data structures used by IShellLinkDataList.</summary>
		[StructLayout(LayoutKind.Sequential, Pack = 4)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb773249")]
		public struct DATABLOCKHEADER
		{
			/// <summary>The size of the extra data block.</summary>
			public uint cbSize;

			/// <summary>A signature that identifies the type of data block that follows the header.</summary>
			public ShellDataBlockSignature dwSignature;
		}

		/// <summary>Contains context menu information used by SHCreateDefaultContextMenu.</summary>
		[StructLayout(LayoutKind.Sequential)]
		[PInvokeData("shlobj_core.h")]
		public struct DEFCONTEXTMENU
		{
			/// <summary>A handle to the context menu. Set this member to the handle returned from CreateMenu.</summary>
			public IntPtr hwnd;

			/// <summary>
			/// A pointer to the IContextMenuCB interface supported by the callback object. This value is optional and can be NULL.
			/// </summary>
			public IContextMenuCB pcmcb;

			/// <summary>
			/// The PIDL of the folder that contains the selected file object(s) or the folder of the context menu if no file objects are
			/// selected. This value is optional and can be NULL, in which case the PIDL is computed from the psf member.
			/// </summary>
			public IntPtr pidlFolder;

			/// <summary>
			/// A pointer to the IShellFolder interface of the folder object that contains the selected file objects, or the folder that
			/// contains the context menu if no file objects are selected.
			/// </summary>
			public IShellFolder psf;

			/// <summary>The count of items in member apidl.</summary>
			public uint cidl;

			/// <summary>
			/// A pointer to a constant array of ITEMIDLIST structures. Each entry in the array describes a child item to which the context
			/// menu applies, for instance, a selected file the user wants to Open.
			/// </summary>
			public IntPtr apidl;

			/// <summary>
			/// A pointer to the IQueryAssociations interface on the object from which to load extensions. This parameter is optional and
			/// thus can be NULL. If this value is NULL and members aKeys and cKeys are also NULL (see Remarks), punkAssociationInfo is
			/// computed from the apidl member and cidl via a request for IQueryAssociations through IShellFolder::GetUIObjectOf. If
			/// IShellFolder::GetUIObjectOf returns E_NOTIMPL, a default implementation is provided based on the SFGAO_FOLDER and
			/// SFGAO_FILESYSTEM attributes returned from IShellFolder::GetAttributesOf.
			/// </summary>
			public IQueryAssociations punkAssociationInfo;

			/// <summary> The count of items in member aKeys. This value can be zero. If the value is zero, the extensions are loaded based
			/// on the object that supports interface IQueryAssociations as specified by member punkAssociationInfo. If the value is
			/// non-NULL, the extensions are loaded based only on member aKeys and not member punkAssociationInfo.
			// Note The maximum number of keys is 16. Callers must enforce this limit as the API does not. Failing to do so can result in
			// memory corruption.
			/// </summary>
			public uint cKeys;

			/// <summary>
			/// A pointer to an HKEY that specifies the registry key from which to load extensions. This parameter is optional and can be
			/// NULL. If the value is NULL, the extensions are loaded based on the object that supports interface IQueryAssociations as
			/// specified in punkAssociationInfo.
			/// </summary>
			public IntPtr aKeys;
		}

		/// <summary>Holds an extra data block used by IShellLinkDataList. It holds the link's Windows Installer ID.</summary>
		[StructLayout(LayoutKind.Sequential, Pack = 4)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb773274")]
		public struct EXP_DARWIN_LINK
		{
			/// <summary>
			/// DATABLOCK_HEADER structure stating the size and signature of the EXP_DARWIN_LINK structure. The following is the only recognized signature value: EXP_DARWIN_ID_SIG
			/// </summary>
			public DATABLOCKHEADER dbh;

			/// <summary>The link's ID in the form of an ANSI string.</summary>
			[MarshalAs(UnmanagedType.LPStr, SizeConst = MAX_PATH)]
			public string szDarwinID;

			/// <summary>The link's ID in the form of an Unicode string.</summary>
			[MarshalAs(UnmanagedType.LPWStr, SizeConst = MAX_PATH)]
			public string szwDarwinID;
		}

		/// <summary>Holds an extra data block used by IShellLinkDataList. It holds special folder information.</summary>
		[StructLayout(LayoutKind.Sequential, Pack = 4)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb773279")]
		public struct EXP_SPECIAL_FOLDER
		{
			/// <summary>The size of the EXP_SPECIAL_FOLDER structure.</summary>
			public uint cbSize;

			/// <summary>The structure's signature. It should be set to EXP_SPECIAL_FOLDER_SIG.</summary>
			public ShellDataBlockSignature dwSignature;

			/// <summary>The ID of the special folder that the link points into.</summary>
			public uint idSpecialFolder;

			/// <summary>The offset into the saved PIDL.</summary>
			public uint cbOffset;
		}

		/// <summary>Holds an extra data block used by IShellLinkDataList. It holds expandable environment strings for the icon or target.</summary>
		[StructLayout(LayoutKind.Sequential, Pack = 4)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb773282")]
		public struct EXP_SZ_LINK
		{
			/// <summary>The size of the EXP_SZ_LINK structure.</summary>
			public uint cbSize;

			/// <summary>
			/// The structure's signature. It can have one of the following values: EXP_SZ_LINK_SIG = Contains the link's target path; EXP_SZ_ICON_SIG = Contains
			/// the links icon path.
			/// </summary>
			public ShellDataBlockSignature dwSignature;

			/// <summary>The null-terminated ANSI string with the path of the target or icon.</summary>
			[MarshalAs(UnmanagedType.LPStr, SizeConst = MAX_PATH)]
			public string szTarget;

			/// <summary>The null-terminated Unicode string with the path of the target or icon.</summary>
			[MarshalAs(UnmanagedType.LPWStr, SizeConst = MAX_PATH)]
			public string swzTarget;
		}

		/// <summary>Holds an extra data block used by IShellLinkDataList. It holds console properties.</summary>
		[StructLayout(LayoutKind.Sequential, Pack = 2)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb773359")]
		public struct NT_CONSOLE_PROPS
		{
			/// <summary>
			/// The DATABLOCK_HEADER structure with the NT_CONSOLE_PROPS structure's size and signature. The signature for an NT_CONSOLE_PROPS structure is NT_CONSOLE_PROPS_SIG.
			/// </summary>
			public DATABLOCKHEADER dbh;

			/// <summary>Fill attribute for the console.</summary>
			public ushort wFillAttribute;

			/// <summary>Fill attribute for console pop-ups.</summary>
			public ushort wPopupFillAttribute;

			/// <summary>A COORD structure with the console's screen buffer size.</summary>
			public COORD dwScreenBufferSize;

			/// <summary>A COORD structure with the console's window size.</summary>
			public COORD dwWindowSize;

			/// <summary>A COORD structure with the console's window origin.</summary>
			public COORD dwWindowOrigin;

			/// <summary>The font.</summary>
			public uint nFont;

			/// <summary>The input buffer size.</summary>
			public uint nInputBufferSize;

			/// <summary>A COORD structure with the font size.</summary>
			public COORD dwFontSize;

			/// <summary>The font family/</summary>
			public uint uFontFamily;

			/// <summary>The font weight.</summary>
			public uint uFontWeight;

			/// <summary>A character array that contains the font's face name.</summary>
			[MarshalAs(UnmanagedType.LPWStr, SizeConst = LF_FACESIZE)]
			public string FaceName;

			/// <summary>The cursor size.</summary>
			public uint uCursorSize;

			/// <summary>A boolean value that is set to TRUE if the console is in full-screen mode, or FALSE otherwise.</summary>
			[MarshalAs(UnmanagedType.Bool)] public bool bFullScreen;

			/// <summary>A boolean value that is set to TRUE if the console is in quick-edit mode, or FALSE otherwise.</summary>
			[MarshalAs(UnmanagedType.Bool)] public bool bQuickEdit;

			/// <summary>A boolean value that is set to TRUE if the console is in insert mode, or FALSE otherwise.</summary>
			[MarshalAs(UnmanagedType.Bool)] public bool bInsertMode;

			/// <summary>A boolean value that is set to TRUE if the console is in auto-position mode, or FALSE otherwise.</summary>
			[MarshalAs(UnmanagedType.Bool)] public bool bAutoPosition;

			/// <summary>The size of the history buffer.</summary>
			public uint uHistoryBufferSize;

			/// <summary>The number of history buffers.</summary>
			public uint uNumberOfHistoryBuffers;

			/// <summary>A boolean value that is set to TRUE if old duplicate history lists should be discarded, or FALSE otherwise.</summary>
			[MarshalAs(UnmanagedType.Bool)] public bool bHistoryNoDup;

			/// <summary>An array of COLORREF values with the console's color settings.</summary>
			[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
			public uint[] ColorTable;
		}

		/// <summary>Holds an extra data block used by IShellLinkDataList. It holds the console's code page.</summary>
		[StructLayout(LayoutKind.Sequential, Pack = 2)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb773362")]
		public struct NT_FE_CONSOLE_PROPS
		{
			/// <summary>
			/// The DATABLOCK_HEADER structure with the NT_FE_CONSOLE_PROPS structure's size and signature. The signature for an NT_FE_CONSOLE_PROPS structure is NT_FE_CONSOLE_PROPS_SIG.
			/// </summary>
			public DATABLOCKHEADER dbh;

			/// <summary>The console's code page.</summary>
			public uint uCodePage;
		}

		/// <summary><para>This structure contains information from a .pif file. It is used by PifMgr_GetProperties.</para></summary>
		// https://docs.microsoft.com/en-us/windows/desktop/api/shlobj_core/ns-shlobj_core-propprg
		// typedef struct PROPPRG { WORD flPrg; WORD flPrgInit; CHAR achTitle[PIFNAMESIZE]; CHAR achCmdLine[PIFSTARTLOCSIZE + PIFPARAMSSIZE + 1]; CHAR achWorkDir[PIFDEFPATHSIZE]; WORD wHotKey; CHAR achIconFile[PIFDEFFILESIZE]; WORD wIconIndex; DWORD dwEnhModeFlags; DWORD dwRealModeFlags; CHAR achOtherFile[PIFDEFFILESIZE]; CHAR achPIFFile[PIFMAXFILEPATH]; };
		[PInvokeData("shlobj_core.h", MSDNShortId = "603f990b-efb8-4d72-bc96-27bda4ffcbd8")]
		[StructLayout(LayoutKind.Sequential)]
		public struct PROPPRG
		{
			private const int PIFNAMESIZE = 30;
			private const int PIFSTARTLOCSIZE = 63;
			private const int PIFDEFPATHSIZE = 64;
			private const int PIFPARAMSSIZE = 64;
			private const int PIFSHPROGSIZE = 64;
			private const int PIFSHDATASIZE = 64;
			private const int PIFDEFFILESIZE = 80;
			private const int PIFMAXFILEPATH = 260;

			/// <summary><para>Type: <c>WORD</c></para><para>Flags that describe how the program will run.</para><para>PRG_DEFAULT</para><para>Use the default options.</para><para>PRG_CLOSEONEXIT</para><para>Close the application on exit.</para></summary>
			public ushort flPrg;
			/// <summary><para>Type: <c>WORD</c></para><para>Flags that specify the initial conditions for the application.</para><para>PRGINIT_DEFAULT</para><para>Use the default options.</para><para>PRGINIT_MINIMIZED</para><para>The application should be minimized.</para><para>PRGINIT_MAXIMIZED</para><para>The application should be maximized.</para><para>PRGINIT_REALMODE</para><para>The application should run in real mode.</para><para>PRGINIT_REALMODESILENT</para><para>The application should run in real mode without being prompted.</para><para>PRGINIT_AMBIGUOUSPIF</para><para>The data is ambiguous.</para><para>PRGINIT_NOPIF</para><para>No .pif file was found.</para><para>PRGINIT_DEFAULTPIF</para><para>A default .pif was found.</para><para>PRGINIT_INFSETTINGS</para><para>A .inf file was found.</para><para>PRGINIT_INHIBITPIF</para><para>The .inf file indicates that a .pif file should not be created.</para></summary>
			public ushort flPrgInit;
			/// <summary><para>Type: <c>__wchar_t</c></para><para>A null-terminated string that contains the title.</para></summary>
			[MarshalAs(UnmanagedType.ByValArray, SizeConst = PIFNAMESIZE)]
			public byte[] achTitle;
			/// <summary><para>Type: <c>__wchar_t</c></para><para>A null-terminated string that contains the command line, including arguments.</para></summary>
			[MarshalAs(UnmanagedType.ByValArray, SizeConst = PIFSTARTLOCSIZE + PIFPARAMSSIZE + 1)]
			public byte[] achCmdLine;
			/// <summary><para>Type: <c>__wchar_t</c></para><para>A null-terminated string that contains the working directory.</para></summary>
			[MarshalAs(UnmanagedType.ByValArray, SizeConst = PIFDEFPATHSIZE)]
			public byte[] achWorkDir;
			/// <summary><para>Type: <c>WORD</c></para><para>The key code of the .pif file&#39;s hotkey.</para></summary>
			public ushort wHotKey;
			/// <summary><para>Type: <c>__wchar_t</c></para><para>A null-terminated string that contains the name of the file that contains the icon.</para></summary>
			[MarshalAs(UnmanagedType.ByValArray, SizeConst = PIFDEFFILESIZE)]
			public byte[] achIconFile;
			/// <summary><para>Type: <c>WORD</c></para><para>The index of the icon in the file specified by <c>achIconFile</c>.</para></summary>
			public ushort wIconIndex;
			/// <summary><para>Type: <c>DWORD</c></para><para>Reserved.</para></summary>
			public uint dwEnhModeFlags;
			/// <summary><para>Type: <c>DWORD</c></para><para>Flags that specify the real mode options.</para><para>RMOPT_MOUSE</para><para>Requires a real-mode mouse.</para><para>RMOPT_EMS</para><para>Requires expanded memory.</para><para>RMOPT_CDROM</para><para>Requires CD-ROM support.</para><para>RMOPT_NETWORK</para><para>Requires network support.</para><para>RMOPT_DISKLOCK</para><para>Requires disk locking.</para><para>RMOPT_PRIVATECFG</para><para>Use a private config.sys or autoexec.bat file.</para><para>RMOPT_VESA</para><para>Requires a VESA driver.</para></summary>
			public uint dwRealModeFlags;
			/// <summary><para>Type: <c>__wchar_t</c></para><para>A null-terminated string that contains the name of the &quot;other&quot; file in the directory.</para></summary>
			[MarshalAs(UnmanagedType.ByValArray, SizeConst = PIFDEFFILESIZE)]
			public byte[] achOtherFile;
			/// <summary><para>Type: <c>__wchar_t</c></para><para>A null-terminated string that contains the name of the .pif file in the directory.</para></summary>
			[MarshalAs(UnmanagedType.ByValArray, SizeConst = PIFMAXFILEPATH)]
			public byte[] achPIFFile;
		}
		/// <summary>This structure is used with the SHCreateShellFolderView function.</summary>
		[StructLayout(LayoutKind.Sequential)]
		[PInvokeData("Shlobj.h")]
		public struct SFV_CREATE
		{
			/// <summary>The size of the SFV_CREATE structure, in bytes.</summary>
			public uint cbSize;
			/// <summary>The IShellFolder interface of the folder for which to create the view.</summary>
			public IShellFolder pshf;
			/// <summary>
			/// A pointer to the parent IShellView interface. This parameter may be NULL. This parameter is used only when the view created by
			/// SHCreateShellFolderView is hosted in a common dialog box.
			/// </summary>
			public IShellView psvOuter;
			/// <summary>
			/// A pointer to the IShellFolderViewCB interface that handles the view's callbacks when various events occur. This parameter may be NULL.
			/// </summary>
			public IShellFolderViewCB psfvcb;
		}

		/// <summary>Receives item data in response to a call to SHGetDataFromIDList.</summary>
		[StructLayout(LayoutKind.Sequential)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb759775")]
		public struct SHDESCRIPTIONID
		{
			/// <summary>Receives a value that determines what type the item is.</summary>
			public SHDID dwDescriptionId;

			/// <summary>Receives the CLSID of the object to which the item belongs.</summary>
			public Guid clsid;
		}

		/*[StructLayout(LayoutKind.Sequential)]
		[PInvokeData("Shlobj.h", MSDNShortId = "bb773399")]
		public struct SFV_CREATE
		{
			public uint cbSize;
			[MarshalAs(UnmanagedType.Interface)] public IShellFolder pshf;
			[MarshalAs(UnmanagedType.Interface)] public IShellView psvOuter;
			[MarshalAs(UnmanagedType.Interface)] public IShellFolderViewCB psfbcb;
		}*/
	}
}