private static extern int GdipGetImageType(IntPtr image, out GdipImageTypeEnum type);
private static extern int GdipGetImageType(IntPtr image, out GdipImageTypeEnum type);
private static extern int GdipGetImageType(IntPtr image, out GdipImageTypeEnum type);
private static extern int GdipGetImageType(IntPtr image, out GdipImageTypeEnum type);