public override void SetBitmapPixel(object handle, int x, int y, Xwt.Drawing.Color color)
{
NSImage img = (NSImage)handle;
NSBitmapImageRep bitmap = img.Representations ().OfType<NSBitmapImageRep> ().FirstOrDefault ();
if (bitmap != null)
bitmap.SetColorAt (color.ToNSColor (), x, y);
else
throw new InvalidOperationException ("Not a bitmnap image");
}
public void AddColorStop(object backend, double position, Xwt.Drawing.Color color)
{
GradientInfo gr = (GradientInfo) backend;
gr.Colors.Add (color.ToNSColor ());
gr.Stops.Add ((float) position);
}