From: aho450s AT nic DOT smsu DOT edu (Tony O'Bryan)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: SVGA Problem in Allegro
Date: Mon, 27 Jan 1997 23:56:00 GMT
Organization: Southwest Missouri State University
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On 27 Jan 1997 16:29:06 -0700, libolt AT goodnet DOT com (Mike McLean) wrote:

>I am trying to do graphics in allegro in SVGA 640x480, It displays the
>graphics, but it also displays garbage over the top portion of the
>screen

Allegro doesn't automatically clear the screen or blank bitmaps.  After you set
the graphics mode, use either clear(screen) or clear_to_color(screen,color) to
blank the screen (I think those are the correct names and parameters) or bitmap.