From:	Jason Hood <jadoxa AT yahoo DOT com DOT au>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: VGA DAC programming
Date:	Sun, 12 Jan 2003 13:53:49 +1000
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Joel_S wrote:
> 
> I just ran into a problem that I've never had before trying to alter the
> palettes in screen mode 0x12.  I can do this just fine using a VBDOS
> compiler (QuickBasic compatible) but using DJGPP, or even the real mode
> Turbo C++ 3.0 not all of the colors from 0 to 8 can be changed, and none
> of the colors from 9 to 15 can be changed at all.
> Here's a simple program that's supposed to
> 1) Switch to VGA mode 0x12
> 2) Change the color 12 to puple.
> 3) Draw a line using the color 12.
[snip code]

I also tried in Win98SE, with the same effect (ie. red, not purple).
Using mode 0x13 does change color, but that's not what you want. The
video function to change the DAC also does not work (0x1010). Would
it be possible to use color 13, which is purple (technically magenta)
by default?

Jason.

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