Message-ID: <33589603.5CB9@mcs.nl>
Date: Sat, 19 Apr 1997 11:53:07 +0200
From: Peter Zijlstra <peter AT mcs DOT nl>
Reply-To: peter AT mcs DOT nl
Organization: Zembla
MIME-Version: 1.0
To: spector AT EnchantedLearning DOT com
CC: DJGPP mailing list <djgpp AT delorie DOT com>
Subject: Re: Background color in Allegro
References: <861302268 DOT 21239 AT dejanews DOT com>
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spector AT EnchantedLearning DOT com wrote:
> 
> I've observed that whichever color I set to be color 0 in the palette
> becomes the background color of my screen (that is, the color of the area
> outside the drawable area).  Does anyone know if there's any way around
> this, or is this simply the way all video cards (or my video card) work?
> 
> I'd like to change color 0 in my palette, but I want to keep the area
> outside the drawable area of my display black.  Can this be done?  (I'm
> using Allegro, if that matters.)
> 
> Thanks in advance for any information on this.
> 
> Mitchell
> --
> Mitchell Spector
> Enchanted Learning Software
> E-mail: spector AT EnchantedLearning DOT com
> Web site: http://www.EnchantedLearning.com
> 
> -------------------==== Posted via Deja News ====-----------------------
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Hi,

I´m not that familair with allegro but it seems that the PAGE-clearing
routine sets all the bytes to 0, try rewriting this routine so that they
become another value eg. memset( page-offset, another-color,
size-of-page);

greetinx,

Peter