transparency

Hi all, I'm trying to figure out how to reveal an image by putting a black bitmap on top of it, then letting the user draw on the screen to gradually reveal the image. (Think of it as rubbing soot off a window so you can see through it.) I can draw with transparency to completely reveal the...

Hi All, i would like to find out if it would be possible to add an opaque overlay over the camera preview, i have seen some apps where they have a small rectangle in the middle where the camera preview looks normal and everything else around it looks as if it has an opaque overlay, please check...

Hi all, let's say I have some animated sprites with different coloured backgrounds, which should be rendered as transparent. Is there a way, in B4A/B4X to render a certain color of an image as transparent ? For instance, if I have an animated sprite where the pink color should not be...