public static Gdk.Pixbuf GetPixbufFromNSImage (NSImage icon, int width, int height) { var rect = new RectangleF (0, 0, width, height); var rep = icon.BestRepresentation (rect, null, null); var bitmap = rep as NSBitmapImageRep; try { if (bitmap == null) { if (rep != null) rep.Dispose (); using (var cgi = icon.AsCGImage (ref rect, null, null)) { if (cgi == null) return null; bitmap = new NSBitmapImageRep (cgi); } } return GetPixbufFromNSBitmapImageRep (bitmap, width, height); } finally { if (bitmap != null) bitmap.Dispose (); } }