Calculating the required buffer size for the WriteableBitmap.WritePixels method

Question

How do I calculate the required buffer size for the WriteableBitmap.WritePixels method?

I am using the overload taking four parameters, the first is an Int32Rect, th

Answer 1

I am work with this. 60z fs

   this.playerOpacityMaskImage.WritePixels(
                new Int32Rect(0, 0, this.depthWidth, this.depthHeight),
                this.greenScreenPixelData,
                this.depthWidth * ((this.playerOpacityMaskImage.Format.BitsPerPixel + 7) / 8),
                0);