System.Drawing.Bitmap.InitializeImageFrame C# (CSharp) Method

        private void InitializeImageFrame(int frame)
        {
            imageTransform = CGAffineTransform.MakeIdentity();

            SetImageInformation (frame);
            var cg = CGImageSource.FromDataProvider(dataProvider).CreateImage(frame, null);
            imageTransform = new CGAffineTransform(1, 0, 0, -1, 0, cg.Height);
            //InitWithCGImage (cg);
            NativeCGImage = cg;

            GuessPixelFormat ();
        }