I display map features over a user-selected white or black background. I sometimes have to do some filling that can happen to overlap already drawn features (by filling triangles with WinPaintLine.) Is there a way to avoid painting over already drawn features by only allowing this painting over the background color? I read about transparency, but it seems to apply only to bitmaps, and it's not clear how to use it. Alas, my PalmOS Bible is of no help for this one.
Luc Le Blanc http://www.speleo.qc.ca/Auriga -- For information on using the ACCESS Developer Forums, or to unsubscribe, please see http://www.access-company.com/developers/forums/
