public static BitmapImage Clip(this BitmapSource bitmapSource,
double left, double top, double width, double height)
{
Int32Rect rect = new Int32Rect((int)left, (int)top, (int)width, (int)height);
if (CanClip(bitmapSource, rect))
{
CroppedBitmap bm = new CroppedBitmap(bitmapSource, rect);
return(bm.ToBitmapImage());
}
return(null);
}
public static BitmapImage Clip(this BitmapSource bitmapSource,
Rectangle r)
{
int top = Math.Max(r.Y, 0);
int left = Math.Max(r.X, 0);
int bottom = Math.Min(r.Y + r.Height, (int)bitmapSource.Height);
int right = Math.Min(r.X + r.Width, (int)bitmapSource.Width);
Int32Rect rect = new Int32Rect(left, top, right - left, bottom - top);
if (CanClip(bitmapSource, rect))
{
CroppedBitmap bm = new CroppedBitmap(bitmapSource, rect);
return(bm.ToBitmapImage());
}
return(null);
}