From: gautam AT interlog DOT com (Gautam N. Lad)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Can I use 256 grayscale colors?
Date: Thu, 12 Jun 97 10:54:28 GMT
Organization: InterLog Internet Services
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To: djgpp AT delorie DOT com
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Hi,
>I would like to use 256 grayscale colors with djgpp.
Hi,
>e.g.
>set_gfx_mode(GFX_ET4000,640,480,0,0);
>for(c=0;c<256;c++){
>  pallete[c].r=c;
>  pallete[c].g=c;
>  pallete[c].b=c;
>}

This is 'cause the .r .g .b number can only be from 0 to 63.  To get a 
greyscale, do this:

for(x=0;x<256;x+=64)
  for(c=0;c<63;c++)
    {
    palette[c].r = c+x;
    palette[c].g = c+x;
    palette[c].b = c+x;
   }

What these loops do is make the colours go from 0-63, and then 
from 64-127, and then 128-191, and then 191-254.  This the only way I can
think of, 'cause I've not done this yet. If this doesn't work, opp!

Hope this helps / works! ;)
Bye!

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