From:	De Messemaeker Johan <Johan DOT DeMessemaeker AT rug DOT ac DOT be>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Allegro Vesa mode graphics
Date:	Wed, 29 Jan 1997 17:34:56 +0100
Organization:	RUG Gent
Lines:	27
Message-ID:	<32EF7C30.771B@rug.ac.be>
References:	<32e9265d DOT 3993736 AT news DOT primenet DOT com> <s8eIIEBjhS7yEwuh AT talula DOT demon DOT co DOT uk>
Reply-To:	Johan DOT DeMessemaeker AT rug DOT ac DOT be
NNTP-Posting-Host:	infernal.rug.ac.be
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Shawn Hargreaves wrote:
> 
> Mike McLean writes:
> >I am having trouble doing graphics in Vesa graphics modes.  I am
> >trying to display in 640x480 colors, what I display to the screen
> >displays, yet it also displays garbage over it.
> >
> >this is what I use to set the mode, should i change something?
> >
> >set_gfx_mode(GFX_VESA2B, 640, 480, 0, 0);
> 
> I'd use GFX_AUTODETECT, because then your program will work on machines
> that don't support VBE 2.0 as well as ones that do. Also, it would be a
> good idea to check the return value from set_gfx_mode(), because SVGA
> resolutions aren't always available and the function may fail.
> 
> That doesn't explain your problem, though. Can you post some source that
> demonstrates the trouble? I need more info before I can say what's
> wrong...
> 
> /*
>  *  Shawn Hargreaves - shawn AT talula DOT demon DOT co DOT uk - http://www.talula.demon.co.uk/
>  *  Ghoti: 'gh' as in 'enough', 'o' as in 'women', and 'ti' as in 'nation'.
>  */
I had the same problem ... until I installed Univbe.

				Dj Infernal

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