I would like to be able to draw an image on top of one
other. But i would be able to se trought it. I don't mean
here the thing with a transparent color. But a formula where
I can state the transparency. If I want the picture 0% transparent, that would mean I can't
see the image in he background. And 100% transparent
would make that I can't see the image in the foreground.
If possible I would like source code.
Any hint someone ?