Hi! 

> I am not real familier with bliting, but if you want to access the 
> 
> 0xFFFFFA00 is the hardware reigster that points to the display memory. 
> This may not be true for all roms, but it works on the Palm III. I you 
> 
Don't do that. The Palm III is probably the last device where this 
worked... You could create an offscreen window in genericFormat, then 
use WinGetBitmap to get at the bitmap which is yours to manipulate. Then

copy that offscreen buffer to the screen. That'll give you double 
buffering at a decent speed. 
About the suggestions by kcorey: Don't use WinScreenLock, it's a memory 
and performance hog, and is mostly unsuitable for the purpose of fast 
double buffering. And *shameless plug* yes, take a look at Razor! 
www.tilo-christ.de/razor :-)  It gives you both "pure" OS based double 
buffering and game screen manipulation, as well as speed optimized 
assembly language, slightly evil bit-banging routines. 

Cheers, 
Tilo

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