From:	Regis BOSSUT <bossut AT isen DOT fr>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: GRX20: Changing Pallette
Date:	Thu, 29 May 1997 11:39:32 +0200
Organization:	IEMN - Dépt ISEN - Acoustique
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Message-ID:	<338D4ED4.7AD1@isen.fr>
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NNTP-Posting-Host:	hpac1.isen.fr
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Thomas Knudsen wrote:

> When using GRX20 in 256 color mode to display a pseudo-colored bitmap
> image, I start by loading a pallette like this:

>   for(i=0; i<256; i++) GrSetColor(i, r[i], g[i], b[i]);

> then I display the image on the screen. However, if I later try to change
> the pallette (to enable some interactive contrast stretching), nothing
> happens.

Isn't there a GrRefreshColors() subroutine available for that purpose ?
I don't have the source code here but it should be the answer...

/Régis

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