Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!snorkelwacker!bloom-beacon!SAM.CS.CMU.EDU!Francois.Bitz
From: Francois.Bitz@SAM.CS.CMU.EDU
Newsgroups: comp.windows.x
Subject: XInstallColormap question
Message-ID: <9007211923.AA10640@ATHENA.MIT.EDU>
Date: 21 Jul 90 19:22:34 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 22



I am having trouble figuring out the correct 
behavior of XInstallColormap in that I thought
that when a new colormap is installed  (i.e when
I move into an application window) ONLY the
color entries for pixels (in the harware colormap) that have
been allocated by the application sould be
modified. This is on an 8 bits PseudoColor display.

Instead it seems that ALL pixels entries (256 entries) 
are modified; which I think is pretty odd. 
I have a lot of windows with different colormaps
and each windows utilizes 224 cells for 
displaying images while the remaining cells are
globally defined.

Does this mean that I should allocate  and fill the  color
entries for the cells I am not using when I create a new
colormap?

Thanks for any help on this.