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From: rthomson@mesa.dsd.es.com (Rich Thomson)
Newsgroups: comp.windows.x
Subject: Re: color maps in 24bit X?
Message-ID: <1991May24.005241.8743@dsd.es.com>
Date: 24 May 91 00:52:41 GMT
References: <15024@hacgate.UUCP>
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Reply-To: rthomson@dsd.es.com (Rich Thomson)
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In article <15024@hacgate.UUCP>
	waung@rscene.hac.com (Franklin Waung) writes:
>Anyone knows of a way to swap color maps on a 24 bit color system?
>
>We are running a Sun4 Sparc Station with a 24bit color display
>with "true color, 24bit depth" as its default visual.

First, I'm not sure what you mean by "swap color maps".  Besides, you
can't change the colormap of a TrueColor visual because the visual has
a read-only colormap.

Look at what other visuals are supported for the server.  DirectColor
is the read-write equivalent of TrueColor.  You'll have to use
XMatchVisualInfo (or equivalent) to determine a visual class with a
writable colormap for the window when you create it.  You may also
have to create your own colormap (depends on your environment and
server).

						-- Rich
-- 
  ``Read my MIPS -- no new VAXes!!'' -- George Bush after sniffing freon
	    Disclaimer: I speak for myself, except as noted.
UUCP: ...!uunet!dsd.es.com!rthomson		Rich Thomson
ARPA: rthomson@dsd.es.com			PEXt Programmer