transparency.c was written when we didn't have Enhanced Display. Nowdays all you need to do is set a few WA_ attributes. See the intuition includes from the sdk update. I can patch up a quick example if needed later.

The 'shape' is determined by the alpha channel and obviously is what you paint it to be. No flicker involved.

[ Edited by jacadcaps on 2010/1/29 23:32 ]