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From: nan@matt.ksu.ksu.edu (Nan Zou)
Newsgroups: comp.windows.ms
Subject: Re: Changing colors
Message-ID: <1991Mar4.060202.7515@maverick.ksu.ksu.edu>
Date: 4 Mar 91 06:02:02 GMT
References: <1991Mar2.200921.29998@maverick.ksu.ksu.edu> <1991Mar2.010527.3569@ux1.cso.uiuc.edu> <1991Mar3.162536.8865@ux1.cso.uiuc.edu>
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mcdonald@aries.scs.uiuc.edu (Doug McDonald) writes:

>In article <1991Mar2.200921.29998@maverick.ksu.ksu.edu> nan@math.ksu.edu (Nan Zou) writes:
>>mcdonald@aries.scs.uiuc.edu (Doug McDonald) writes:
...
>>Windows only supports some 20 solid colors, the rest are dithered. There's
>>nothing you can do.

>Oh. I thought that it could display 256 colors! How do things like
>WinGif work? It sure looks like 256 colors to me! In any case,
>simply CHANGING one of the 20 solid ones would be fine. But HOW do
>I do that legally. (I did do it illegally - I wrote a Windows program that
>simply pokes the proper valures for a dark gray into the VGA registers.
>But then Windows doesn't know about it!)

I didn't make myself very clear. An application like Wingif, PaintBrush
that's 256-color aware can work with 256 colors within the application,
but windows itself only gives you a very limited color selection. Take
PaintBrush, if you installed a 256-color driver you can display a 256-color
image, but when you try to edit, no matter how you change the RGB values
you still get dithered ones.

--
           Nan Zou              | Bitnet  : nan@ksuvm
    Kansas State University     | Internet: nan@math.ksu.edu
  #include <std_disclaimer.h>   |           nan@matt.ksu.ksu.edu