public static Icon GetFolderIcon( string fileName, int index, bool isSmall )
{
const uint SHGFI_ICON = 0x000000100;
const uint SHGFI_SMALLICON = 0x000000001;
const uint SHGFI_LARGEICON = 0x000000000;
const uint FILE_ATTRIBUTE_DIRECTORY = 0x00000010;
uint flags = SHGFI_ICON + ( isSmall ? SHGFI_SMALLICON : SHGFI_LARGEICON );
var fileInfo = new SHFILEINFOW();
uint size = (uint) Marshal.SizeOf( fileInfo );
uint result = NativeMethods.SHGetFileInfoW( fileName, FILE_ATTRIBUTE_DIRECTORY, ref fileInfo, size, flags );
if ( result == 0 )
{
return null;
}
var icon = (Icon) Icon.FromHandle( fileInfo.hIcon ).Clone();
DestroyIcon( fileInfo.hIcon );
return icon;
}
public static extern uint SHGetFileInfoW( [In] [MarshalAs( UnmanagedType.LPWStr )] string pszPath,
uint dwFileAttributes,
ref SHFILEINFOW psfi,
uint cbFileInfo,
uint uFlags );