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Subject: Re: Strange interaction of Allegro and XP?
From: Neo 1061 <invalid AT erehwon DOT invalid>
References: <Xns920AEA4D67E0Cneo1061hotmailcom AT 216 DOT 254 DOT 136 DOT 26> <3CDDC146 DOT 9010102 AT vif DOT com>
Organization: Geeks Anonymous
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Date: Sun, 12 May 2002 05:13:16 GMT
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Sahab Yazdani <sahaby AT vif DOT com> wrote in news:3CDDC146 DOT 9010102 AT vif DOT com:

> Neo 1061 wrote:
>> Allegro and Winblows XP don't seem to always get along very well.
>> An Allegro-using console app is run that instantiates a 1024x768x256 
>> video mode and begins to draw lines at a constant rate.
> 
> wo, hold on, WinXP allows these modes for a DOS application??  does 
> anybody know how it is invoked?  lets say i don't want to use allegro, 
> can i just use the VESA2.0 method of getting into these modes, or do i 
> have to do something special??

It seems to depend on the drivers and graphics card. I can get 1024x768x256 
but not 1024x768x32bpp or anything else high-color. And, it seems, 
1024x768x256 isn't entirely stable...