CompuServe Messages

Actually, I *have* the mask. Since the images being blitted are all out of a single data file, I made up a second set of images for the mask, all one bit plane, when I decided to try to use BltMaskBitMapRastPort(). What I *don't* understand is why the results turned out the way they did. I would expect that a call like this: BltMaskBitMapRastPort(&mybitmap, 0, 0, destrastport, x, y, w, h, 0xC0, mask); where, for example (each digit being a color): mybitmap contains: 00012321000 mask contains: 00011111000 destrastport is: 45454545454 we end up with: 66612321666 This makes no sense to me. I would expect a result of 00012321000 or a result of 45412321454 (which is my goal in the first place), but have no idea why the outer edges end up as some color other than the background color or the original destination colors with this call. –>Steve Bennett