so i can guess from your answer that no methods are provided to do that. i'm trying to do is
a scanning machine, the plain person sprite is covered by the skull sprite and scanning device sprite go from top up to down, while its going down the skull become like in the attached picture and the plain person start to show up.
as far as i saw bitmap wont be seen on screen if sprites are on it, so i must rewrite all my sprites of scan machine in bitmap copy/paste method on bitmap, that is lot of work
i think i will cheat by using dbCreateAnimatedSprite(x, "x", 1, 500, x), and seting the frame i want, and doing that 500 times in loop, faster to do than rewriting all my scan machine
thank you for the help