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Re: Help needed on display updates...

On Wed, May 10, 2000 at 11:30:48AM +0530, Shridhar Daithankar wrote:
> What I use...
>  I am using Qt and I have already implemented double buffering using
> pixmaps. That has nulled most of the flicker. But not acceptable yet.. If
> I write a simple test program that draws a long cross hair at mouse point,
> it lags way too much behind the current point..
> My hardware
>  Celeron 400/64MB/Cirrus logic 5430, 1MB..
> I know it's bit low on video card, but it has to do. I mean KDE can do the
> rectangle stuff nicely, then what's the niche I am missing?

1. You might want to optimize the computation that happens to generate 
   the pixels.

2. You might want to pay attention to bitblt routines in qt.