/// <summary>
/// Gets the index in the system image list of the icon representing
/// the item.
/// </summary>
///
/// <param name="type">
/// The type of icon to retrieve.
/// </param>
///
/// <param name="flags">
/// Flags detailing additional information to be conveyed by the icon.
/// </param>
///
/// <returns></returns>
public int GetSystemImageListIndex(ShellIconType type, ShellIconFlags flags)
{
SHFILEINFO info = new SHFILEINFO();
// Patch FAB : Remove SHGFI.ICON
// https://sourceforge.net/p/gong-shell/patches/2/
//To eliminate GDI object leaks
//(which prevent diplaying folder trees with more than a few thousand subfolders),
/*
* IntPtr result = Shell32.SHGetFileInfo(Pidl, 0, out info,
* Marshal.SizeOf(info),
* SHGFI.ICON | SHGFI.SYSICONINDEX | SHGFI.OVERLAYINDEX | SHGFI.PIDL |
* (SHGFI)type | (SHGFI)flags);
*/
IntPtr result = Shell32.SHGetFileInfo(Pidl, 0, out info,
Marshal.SizeOf(info),
SHGFI.SYSICONINDEX | SHGFI.OVERLAYINDEX | SHGFI.PIDL |
(SHGFI)type | (SHGFI)flags);
if (result == IntPtr.Zero)
{
throw new Exception("Error retreiving shell folder icon");
}
return(info.iIcon);
}
/// <summary>Creates a new StockIcon instance with the specified identifer and options.</summary>
/// <param name="id">A value that identifies the icon represented by this instance.</param>
/// <param name="size">A value that indicates the size of the stock icon.</param>
/// <param name="isLinkOverlay">A bool value that indicates whether the icon has a link overlay.</param>
/// <param name="isSelected">A bool value that indicates whether the icon is in a selected state.</param>
public StockIcon(SHSTOCKICONID id, ShellIconType size = ShellIconType.Large, bool isLinkOverlay = false, bool isSelected = false)
{
Identifier = id;
LinkOverlay = isLinkOverlay;
Selected = isSelected;
Size = size;
}
public int AddShellIcon(string path, ShellIconType flags)
{
var info = new NativeMethods.SHFILEINFO();
try
{
var imageList = NativeMethods.SHGetFileInfo(
path, 0, ref info, (uint)Marshal.SizeOf(info),
((uint)flags | NativeMethods.SHGFI_SMALLICON | NativeMethods.SHGFI_SYSICONINDEX)
& ~NativeMethods.SHGFI_ICON
);
if (imageList == IntPtr.Zero)
return -1;
if (imageList != _handle)
throw new ArgumentException("Could not get image", "path");
return info.iIcon;
}
finally
{
if (info.hIcon != IntPtr.Zero)
NativeMethods.DestroyIcon(info.hIcon);
}
}
public int AddShellIcon(string path, ShellIconType flags)
{
var info = new NativeMethods.SHFILEINFO();
try
{
var imageList = NativeMethods.SHGetFileInfo(
path, 0, ref info, (uint)Marshal.SizeOf(info),
((uint)flags | NativeMethods.SHGFI_SMALLICON | NativeMethods.SHGFI_SYSICONINDEX)
& ~NativeMethods.SHGFI_ICON
);
if (imageList == IntPtr.Zero)
{
return(-1);
}
if (imageList != _handle)
{
throw new ArgumentException("Could not get image", "path");
}
return(info.iIcon);
}
finally
{
if (info.hIcon != IntPtr.Zero)
{
NativeMethods.DestroyIcon(info.hIcon);
}
}
}
/// <summary>Gets the Shell icon for the given file name or extension.</summary>
/// <param name="fileNameOrExtension">The file name or extension .</param>
/// <param name="iconType">Flags to specify the type of the icon to retrieve. This uses the <see cref="SHGetFileInfo(string, System.IO.FileAttributes, ref SHFILEINFO, int, SHGFI)"/> method and can only retrieve small or large icons.</param>
/// <returns>An <see cref="Icon"/> instance if found; otherwise <see langword="null"/>.</returns>
public static Icon GetFileIcon(string fileNameOrExtension, ShellIconType iconType = ShellIconType.Large)
{
var shfi = new SHFILEINFO();
var ret = SHGetFileInfo(fileNameOrExtension, 0, ref shfi, SHFILEINFO.Size, SHGFI.SHGFI_USEFILEATTRIBUTES | SHGFI.SHGFI_ICON | (SHGFI)iconType);
if (ret == IntPtr.Zero)
{
ret = SHGetFileInfo(fileNameOrExtension, 0, ref shfi, SHFILEINFO.Size, SHGFI.SHGFI_ICON | (SHGFI)iconType);
}
return(ret == IntPtr.Zero ? null : shfi.hIcon.ToIcon());
}
/// <summary>Gets the Shell icon for the given file name or extension.</summary>
/// <param name="fileNameOrExtension">The file name or extension .</param>
/// <param name="iconType">Flags to specify the type of the icon to retrieve. This uses the <see cref="SHGetFileInfo(string, System.IO.FileAttributes, ref SHFILEINFO, int, SHGFI)"/> method and can only retrieve small or large icons.</param>
/// <returns>An <see cref="Icon"/> instance if found; otherwise <see langword="null"/>.</returns>
public static Icon GetFileIcon(string fileNameOrExtension, ShellIconType iconType = ShellIconType.Large)
{
const SHGFI baseFlags = SHGFI.SHGFI_USEFILEATTRIBUTES | SHGFI.SHGFI_ICON;
var shfi = new SHFILEINFO();
var ret = SHGetFileInfo(fileNameOrExtension, 0, ref shfi, shfiSz, baseFlags | (SHGFI)iconType);
if (ret == IntPtr.Zero)
{
ret = SHGetFileInfo(fileNameOrExtension, 0, ref shfi, shfiSz, SHGFI.SHGFI_ICON | (SHGFI)iconType);
}
return(ret == IntPtr.Zero ? null : IconLocation.GetClonedIcon(shfi.hIcon));
}
/// <summary>
/// Gets the icon defined by the set of flags provided.
/// </summary>
/// <param name="iconType">Flags to specify type of the icon.</param>
/// <returns><see cref="Icon"/> if successful; <c>null</c> otherwise.</returns>
public Icon GetIcon(ShellIconType iconType = ShellIconType.Large)
{
const SHGFI baseFlags = SHGFI.SHGFI_ICON | SHGFI.SHGFI_PIDL;
var shfi = new SHFILEINFO();
var ret = SHGetFileInfo(PIDL, 0, ref shfi, SHFILEINFO.Size, baseFlags | SHGFI.SHGFI_USEFILEATTRIBUTES | (SHGFI)iconType);
if (ret == IntPtr.Zero)
{
ret = SHGetFileInfo(PIDL, 0, ref shfi, SHFILEINFO.Size, baseFlags | (SHGFI)iconType);
}
return(ret == IntPtr.Zero ? null : GetClonedIcon(shfi.hIcon));
}
/// <summary>
/// Gets the index in the system image list of the icon representing
/// the item.
/// </summary>
///
/// <param name="pidl">A pointer to a null-terminated string of maximum length MAX_PATH that contains the path and file name. Both absolute and relative paths are valid.</param>
/// <param name="type">
/// The type of icon to retrieve.
/// </param>
///
/// <param name="flags">
/// Flags detailing additional information to be conveyed by the icon.
/// </param>
///
/// <returns></returns>
public static int GetSystemImageListIndex(IntPtr pidl, ShellIconType type, ShellIconFlags flags)
{
var info = new SHFILEINFO();
IntPtr result = Shell32.SHGetFileInfo(pidl, 0, out info, Marshal.SizeOf(info), SHGFI.Icon | SHGFI.SysIconIndex | SHGFI.OverlayIndex | SHGFI.PIDL | (SHGFI)type | (SHGFI)flags);
if (result == IntPtr.Zero)
{
throw new Exception("Error retrieving shell folder icon");
}
User32.DestroyIcon(info.hIcon);
return(info.iIcon);
}
/// <summary>
/// Gets the index in the system image list of the icon representing
/// the item.
/// </summary>
///
/// <param name="type">
/// The type of icon to retrieve.
/// </param>
///
/// <param name="flags">
/// Flags detailing additional information to be conveyed by the icon.
/// </param>
///
/// <returns></returns>
public int GetSystemImageListIndex(ShellIconType type, ShellIconFlags flags)
{
SHFILEINFO info = new SHFILEINFO();
IntPtr result = Shell32.SHGetFileInfo(Pidl, 0, out info,
Marshal.SizeOf(info),
SHGFI.ICON | SHGFI.SYSICONINDEX | SHGFI.OVERLAYINDEX | SHGFI.PIDL |
(SHGFI)type | (SHGFI)flags);
if (result == IntPtr.Zero)
{
throw new Exception("Error retreiving shell folder icon");
}
return(info.iIcon);
}
public int GetSystemImageListIndex(IntPtr pidl, ShellIconType type, ShellIconFlags flags)
{
var options = SHGetFileInfoOptions.Icon | SHGetFileInfoOptions.SysIconIndex | SHGetFileInfoOptions.OverlayIndex | SHGetFileInfoOptions.Pidl | SHGetFileInfoOptions.AddOverlays | (SHGetFileInfoOptions)type | (SHGetFileInfoOptions)flags;
var shfi = new SHFILEINFO();
var shfiSize = Marshal.SizeOf(shfi.GetType());
IntPtr retVal = Win32Api.SHGetFileInfo(pidl, FileAttributes.None, ref shfi, shfiSize, options);
if (shfi.hIcon != IntPtr.Zero)
{
Win32Api.DestroyIcon(shfi.hIcon);
}
if (retVal.Equals(IntPtr.Zero))
{
return(0);
}
else
{
return(shfi.iIcon);
}
}
/// <summary>Gets the icon defined by the set of flags provided.</summary> /// <param name="iconType">Flags to specify type of the icon.</param> /// <returns><see cref="Icon"/> if successful; <c>null</c> otherwise.</returns> public Icon GetIcon(ShellIconType iconType = ShellIconType.Large) => ShellImageList.GetFileIcon(FullPath, iconType);
/// <summary> /// Gets the index in the system image list of the icon representing /// the item. /// </summary> /// /// <param name="type"> /// The type of icon to retrieve. /// </param> /// /// <param name="flags"> /// Flags detailing additional information to be conveyed by the icon. /// </param> /// /// <returns></returns> public int GetSystemImageListIndex(ShellIconType type, ShellIconFlags flags) => GetSystemImageListIndex(Pidl, type, flags);
public int GetSystemImageListIndex(IntPtr pidl, ShellIconType type, ShellIconFlags flags) {
var info = new SHFILEINFO();
IntPtr result = Shell32.SHGetFileInfo(pidl, 0, out info, Marshal.SizeOf(info),
SHGFI.Icon | SHGFI.SysIconIndex | SHGFI.OverlayIndex | SHGFI.PIDL | (SHGFI)type | (SHGFI)flags);
if (result == IntPtr.Zero) {
throw new Exception("Error retrieving shell folder icon");
}
User32.DestroyIcon(info.hIcon);
return info.iIcon;
}
