在PPC中用C#如何获取各种类型的文件图标？
我在网上查了一下资料实现方式是这样的：
//方法的定义部分[StructLayout( LayoutKind.Sequential)] public struct FileInfoStruct { public IntPtr hIcon; public int iIcon; public int dwAttributes; [ MarshalAs( UnmanagedType.ByValTStr, SizeConst = 260 )] public string szDisplayName; [ MarshalAs( UnmanagedType.ByValTStr, SizeConst = 80 )] public string szTypeName; } public enum FileInfoFlags : int { SHGFI_ICON = 0x000000100 , // get icon SHGFI_DISPLAYNAME = 0x000000200 , // get display name SHGFI_TYPENAME = 0x000000400 , // get type name SHGFI_ATTRIBUTES = 0x000000800 , // get attributes SHGFI_ICONLOCATION = 0x000001000 , // get icon location SHGFI_EXETYPE = 0x000002000 , // return exe type SHGFI_SYSICONINDEX = 0x000004000 , // get system icon index SHGFI_LINKOVERLAY = 0x000008000 , // put a link overlay on icon [Page] SHGFI_SELECTED = 0x000010000 , // show icon in selected state SHGFI_ATTR_SPECIFIED = 0x000020000 , // get only specified attributes SHGFI_LARGEICON = 0x000000000 , // get large icon SHGFI_SMALLICON = 0x000000001 , // get small icon SHGFI_OPENICON = 0x000000002 , // get open icon SHGFI_SHELLICONSIZE = 0x000000004 , // get shell size icon SHGFI_PIDL = 0x000000008 , // pszPath is a pidl SHGFI_USEFILEATTRIBUTES = 0x000000010 , // use passed dwFileAttribute SHGFI_ADDOVERLAYS = 0x000000020 , // apply the appropriate overlays SHGFI_OVERLAYINDEX = 0x000000040 // Get the index of the overlay } public enum FileAttributeFlags : int { FILE_ATTRIBUTE_READONLY = 0x00000001 , FILE_ATTRIBUTE_HIDDEN = 0x00000002 , FILE_ATTRIBUTE_SYSTEM = 0x00000004 , FILE_ATTRIBUTE_DIRECTORY = 0x00000010 , FILE_ATTRIBUTE_ARCHIVE = 0x00000020 , FILE_ATTRIBUTE_DEVICE = 0x00000040 , FILE_ATTRIBUTE_NORMAL = 0x00000080 , FILE_ATTRIBUTE_TEMPORARY = 0x00000100 , FILE_ATTRIBUTE_SPARSE_FILE = 0x00000200 , FILE_ATTRIBUTE_REPARSE_POINT = 0x00000400 , FILE_ATTRIBUTE_COMPRESSED = 0x00000800 , FILE_ATTRIBUTE_OFFLINE = 0x00001000 , FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = 0x00002000 , FILE_ATTRIBUTE_ENCRYPTED = 0x00004000 } //此处是引用shell32.dll类库[DllImport("shell32.dll " , EntryPoint ="SHGetFileInfo")] public static extern int GetFileInfo( string pszPath, int dwFileAttributes, ref FileInfoStruct psfi, int cbFileInfo, int uFlags); //使用方法public static Icon GetSmallIcon(string pFilePath) { FileInfoStruct _info = new FileInfoStruct(); GetFileInfo(pFilePath, 0 , ref _info, Marshal.SizeOf(_info), ( int )(FileInfoFlags.SHGFI_ICON | FileInfoFlags.SHGFI_SMALLICON)); try { return Icon.FromHandle(_info.hIcon); } catch { return null ; } }