> An interesting solution to your problem is to draw to an offscreen window
> and then use:
>
> WinCopyRectangle (WinHandle srcWin, WinHandle dstWin,
> RectanglePtr srcRect, SWord destX,
> SWord destY, ScrOperation mode)
>
> ..and set mode to be "scrOR"
>
> Not sure what this does in grayscale mode, but in black and white this
> should work.
>
> I discovered this function when I wanted to do XOR graphics a while ago
> (but I didn't discover it until _after_ I had worked around my problem
> (doh!)). Thus, I've never actually tried it. Your mileage may vary.
i was using this in all my games.. but however, creating offscreen
windows is not a good thing to do when it comes to OS 3.5 :)) i got
a nice little email from palm saying i had 40+ windows :))
i guess this solution works for anything before 3.5 :) however, with
the more stricter memory management on 3.5 - we may need to consider
alternatives.. such as custom BltBlt routines or masking.. :(
cheers
az
--
Aaron Ardiri
Lecturer http://www.hig.se/~ardiri/
University-College i G�vle mailto:[EMAIL PROTECTED]
SE 801 76 G�vle SWEDEN
Tel: +46 26 64 87 38 Fax: +46 26 64 87 88
Mob: +46 70 656 1143 A/H: +46 26 10 16 11
