public static Bitmap WPF_Copy(this Bitmap bmp, Rectangle rect)
{
if (!bmp.Fits(rect))
{
return(null);
}
var src = bmp.ToBitmapSource();
Bitmap result = null;
if (bmp.ToRectangle().EqualSize(rect))
{
result = src.ToBitmapFast(System.Drawing.Imaging.PixelFormat.Format24bppRgb);
}
else
{
CroppedBitmap cropped = new CroppedBitmap(src, bmp.ToInt32Rect());
result = cropped.ToBitmapFast(System.Drawing.Imaging.PixelFormat.Format24bppRgb);
}
return(result);
}