procedure ColorToGrayscale(Dst, Src: TCustomBitmap32; PreserveAlpha: Boolean = False);


Calculates color intensity from Src and writes it as a grayscale image into Dst. The alpha channel in Dst will be set to $FF by default. However, you can override this behaviour by setting PreserveAlpha to True.

This function supports in-place operation, that is Dst may be the same as Src.

See Also

TCustomBitmap32, AlphaToGrayscale