/// <summary> /// Returns an icon for a given file - indicated by the name parameter. /// </summary> /// <param name="name">Pathname for file.</param> /// <param name="size">Large or small</param> /// <param name="linkOverlay">Whether to include the link icon</param> /// <returns>System.Drawing.Icon</returns> public static System.Drawing.Icon GetFileIcon(string name, IconSize size, bool linkOverlay) { Shell32.SHFILEINFO shfi = new Shell32.SHFILEINFO(); int flags = Shell32.SHGFI_ICON | Shell32.SHGFI_USEFILEATTRIBUTES; if (true == linkOverlay) { flags += Shell32.SHGFI_LINKOVERLAY; } // Check the size specified for return. if (IconSize.Small == size) { flags += Shell32.SHGFI_SMALLICON; } else { flags += Shell32.SHGFI_LARGEICON; } Shell32.SHGetFileInfo(name, Shell32.FILE_ATTRIBUTE_NORMAL, ref shfi, (int)System.Runtime.InteropServices.Marshal.SizeOf(shfi), flags); // Copy (clone) the returned icon to a new object, thus allowing us to clean-up properly System.Drawing.Icon icon = (System.Drawing.Icon)System.Drawing.Icon.FromHandle(shfi.hIcon).Clone(); User32.DestroyIcon(shfi.hIcon); // Cleanup return icon; }
public static System.Drawing.Icon GetFileIcon(string name, IconSize size, bool linkOverlay) { Shell32.SHFILEINFO shfi = new Shell32.SHFILEINFO(); uint flags = Shell32.SHGFI_ICON | Shell32.SHGFI_USEFILEATTRIBUTES; if (true == linkOverlay) flags += Shell32.SHGFI_LINKOVERLAY; /* Check the size specified for return. */ if (IconSize.Small == size) { flags += Shell32.SHGFI_SMALLICON ; // include the small icon flag } else { flags += Shell32.SHGFI_LARGEICON ; // include the large icon flag } Shell32.SHGetFileInfo( name, Shell32.FILE_ATTRIBUTE_NORMAL, ref shfi, (uint) System.Runtime.InteropServices.Marshal.SizeOf(shfi), flags ); // Copy (clone) the returned icon to a new object, thus allowing us // to call DestroyIcon immediately if (shfi.hIcon == IntPtr.Zero) { return null; } else { System.Drawing.Icon icon = (System.Drawing.Icon) System.Drawing.Icon.FromHandle(shfi.hIcon).Clone(); User32.DestroyIcon( shfi.hIcon ); // Cleanup return icon; } }
public static string kind(string extension) { Shell32.SHFILEINFO shinfo = new Shell32.SHFILEINFO(); IntPtr hSuccess = Shell32.SHGetFileInfo(extension, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Shell32.SHGFI_TYPENAME | Shell32.SHGFI_USEFILEATTRIBUTES); if (hSuccess != IntPtr.Zero) { return Convert.ToString(shinfo.szTypeName.Trim()); } return null; }
/// <summary> /// Used to access system folder icons. /// </summary> /// <param name="size">Specify large or small icons.</param> /// <param name="folderType">Specify open or closed FolderType.</param> /// <returns>System.Drawing.Icon</returns> public static System.Drawing.Icon GetFolderIcon(IconSize size, FolderType folderType) { // Need to add size check, although errors generated at present! int flags = Shell32.SHGFI_ICON | Shell32.SHGFI_USEFILEATTRIBUTES; if (FolderType.Open == folderType) { flags += Shell32.SHGFI_OPENICON; } if (IconSize.Small == size) { flags += Shell32.SHGFI_SMALLICON; } else { flags += Shell32.SHGFI_LARGEICON; } // Get the folder icon Shell32.SHFILEINFO shfi = new Shell32.SHFILEINFO(); Shell32.SHGetFileInfo("dummy", Shell32.FILE_ATTRIBUTE_DIRECTORY, ref shfi, (int)System.Runtime.InteropServices.Marshal.SizeOf(shfi), flags); System.Drawing.Icon.FromHandle(shfi.hIcon); // Load the icon from an HICON handle // Now clone the icon, so that it can be successfully stored in an ImageList System.Drawing.Icon icon = (System.Drawing.Icon)System.Drawing.Icon.FromHandle(shfi.hIcon).Clone(); User32.DestroyIcon(shfi.hIcon); // Cleanup return icon; }
/// <summary> /// Used to access system folder icons. /// </summary> /// <param name="size">Specify large or small icons.</param> /// <param name="folderType">Specify open or closed FolderType.</param> /// <param name="shfi">Return Folder Information</param> /// <returns>System.Drawing.Icon</returns> public static Icon GetFolderIcon(IconSize size, FolderType folderType, ref Shell32.SHFILEINFO shfi) { // Need to add size check, although errors generated at present! Shell32.SHGetFileInfoConstants flags = Shell32.SHGetFileInfoConstants.SHGFI_TYPENAME | Shell32.SHGetFileInfoConstants.SHGFI_DISPLAYNAME | Shell32.SHGetFileInfoConstants.SHGFI_ICON | Shell32.SHGetFileInfoConstants.SHGFI_USEFILEATTRIBUTES; if (FolderType.Open == folderType) flags |= Shell32.SHGetFileInfoConstants.SHGFI_OPENICON; if (IconSize.Small == size) flags |= Shell32.SHGetFileInfoConstants.SHGFI_SMALLICON; else flags |= Shell32.SHGetFileInfoConstants.SHGFI_LARGEICON; IntPtr hIml; // Get the folder icon shfi = new Shell32.SHFILEINFO(); if (Utils.IsSevenOrAbove()) // Windows 7 FIX { hIml = Shell32.SHGetFileInfo(Environment.GetFolderPath(Environment.SpecialFolder.System), Shell32.FILE_ATTRIBUTE.DIRECTORY, ref shfi, (uint)Marshal.SizeOf(shfi), flags); } else { hIml = Shell32.SHGetFileInfo(null, Shell32.FILE_ATTRIBUTE.DIRECTORY, ref shfi, (uint)Marshal.SizeOf(shfi), flags); } if (shfi.hIcon == IntPtr.Zero) return null; if (!Utils.IsXpOrAbove()) return GetManagedIcon(shfi.hIcon); // Get the System IImageList object from the Shell: Guid iidImageList = new Guid("46EB5926-582E-4017-9FDF-E8998DAA0950"); Shell32.IImageList iImageList = null; int ret = Shell32.SHGetImageList( (int)size, ref iidImageList, ref iImageList ); // the image list handle is the IUnknown pointer, but // using Marshal.GetIUnknownForObject doesn't return // the right value. It really doesn't hurt to make // a second call to get the handle: Shell32.SHGetImageListHandle((int)size, ref iidImageList, ref hIml); IntPtr hIcon = IntPtr.Zero; if (iImageList == null) { hIcon = Comctl32.ImageList_GetIcon( hIml, shfi.iIcon, (int)Comctl32.ImageListDrawItemConstants.ILD_TRANSPARENT); } else { iImageList.GetIcon( shfi.iIcon, (int)Comctl32.ImageListDrawItemConstants.ILD_TRANSPARENT, ref hIcon); } return hIcon == IntPtr.Zero ? GetManagedIcon(shfi.hIcon) : GetManagedIcon(hIcon); }
/// <summary> /// Returns an icon for a given file - indicated by the name parameter. /// </summary> /// <param name="name">Extension or pathname for file.</param> /// <param name="size">Large or small</param> /// <param name="linkOverlay">Whether to include the link icon</param> /// <param name="shfi">Return File Information</param> /// <returns>System.Drawing.Icon</returns> public static Icon GetFileIcon(string name, IconSize size, bool linkOverlay, ref Shell32.SHFILEINFO shfi) { name = Environment.ExpandEnvironmentVariables(name); shfi = new Shell32.SHFILEINFO(); Shell32.SHGetFileInfoConstants flags = Shell32.SHGetFileInfoConstants.SHGFI_TYPENAME | Shell32.SHGetFileInfoConstants.SHGFI_DISPLAYNAME | Shell32.SHGetFileInfoConstants.SHGFI_ICON | Shell32.SHGetFileInfoConstants.SHGFI_SHELLICONSIZE | Shell32.SHGetFileInfoConstants.SHGFI_SYSICONINDEX | Shell32.SHGetFileInfoConstants.SHGFI_USEFILEATTRIBUTES; if (linkOverlay) flags |= Shell32.SHGetFileInfoConstants.SHGFI_LINKOVERLAY; /* Check the size specified for return. */ if (IconSize.Small == size) flags |= Shell32.SHGetFileInfoConstants.SHGFI_SMALLICON; else flags |= Shell32.SHGetFileInfoConstants.SHGFI_LARGEICON; IntPtr hIml = Shell32.SHGetFileInfo(name, Shell32.FILE_ATTRIBUTE.NORMAL, ref shfi, (uint)Marshal.SizeOf(shfi), flags); if (shfi.hIcon == IntPtr.Zero) return null; if (!Utils.IsXpOrAbove()) return GetManagedIcon(shfi.hIcon); // Get the System IImageList object from the Shell: Guid iidImageList = new Guid("46EB5926-582E-4017-9FDF-E8998DAA0950"); Shell32.IImageList iImageList = null; int ret = Shell32.SHGetImageList( (int)size, ref iidImageList, ref iImageList ); // the image list handle is the IUnknown pointer, but // using Marshal.GetIUnknownForObject doesn't return // the right value. It really doesn't hurt to make // a second call to get the handle: Shell32.SHGetImageListHandle((int)size, ref iidImageList, ref hIml); IntPtr hIcon = IntPtr.Zero; if (iImageList == null) { hIcon = Comctl32.ImageList_GetIcon( hIml, shfi.iIcon, (int)Comctl32.ImageListDrawItemConstants.ILD_TRANSPARENT); } else { iImageList.GetIcon( shfi.iIcon, (int)Comctl32.ImageListDrawItemConstants.ILD_TRANSPARENT, ref hIcon); } return hIcon == IntPtr.Zero ? GetManagedIcon(shfi.hIcon) : GetManagedIcon(hIcon); }