public static BitmapSource ExtractAssociatedIcon(string path, bool large)
{
ShellFileSystemInfo info = new ShellFileSystemInfo();
NativeMethods.SHGetFileInfo(path, 0, ref info, Marshal.SizeOf(info), SHGetFileInfoFlags.Icon | (large ? SHGetFileInfoFlags.LargeIcon : SHGetFileInfoFlags.SmallIcon));
using (Icon icon = Icon.FromHandle(info.IconHandle))
using (Bitmap bitmap = icon.ToBitmap())
return BitmapConverter.ToBitmapSource(bitmap);
}
public static extern IntPtr SHGetFileInfo(string path, uint attributes, ref ShellFileSystemInfo info, int fileInfoSize, SHGetFileInfoFlags flags);
public static extern IntPtr SHGetFileInfo(string path, uint attributes, ref ShellFileSystemInfo info, int fileInfoSize, SHGetFileInfoFlags flags);