Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!apple!uokmax!alliant.backbone.uoknor.edu!jigang
From: jigang@alliant.backbone.uoknor.edu (Jigang Yang)
Newsgroups: comp.windows.x
Subject: Colormap with widgets
Keywords: Xt,widgets,colormaps
Message-ID: <1991Jan17.173335.2260@uokmax.ecn.uoknor.edu>
Date: 17 Jan 91 17:33:35 GMT
Sender: news@uokmax.ecn.uoknor.edu (Nets)
Reply-To: jigang@alliant.backbone.uoknor.edu.UUCP (Jigang Yang)
Organization: Geosciences Computing Network, Univ. of Ok
Lines: 26


I got problem about using colormaps with widgets.

I first use :  XCreateColormap() to create a new colormap and read all colors
from default colormap and save them into new colormap.

Then XInstallColormap();

Then create some widgets and attach them with some callbacks;

Then the mainloop.


In some callbacks, I change the RGB values of the new colormap(since it is
installed, it should be the current colormap), and install it again. 

But I only see the widgets using the newly changed color when they are focused.
For example, if you focus / click the button, the colormap is changed,
and then it seems to use the original colormap again! Why!!! 


-- 
----------------------------------------------------------------------
Jigang Yang                       | jigang@alliant.backbone.uoknor.edu
Geosciences Computing Network     | jigang@gcnuok.bitnet 
University of Oklahoma            | Telphone: 405-325-5540