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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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