Path: utzoo!attcan!uunet!bloom-beacon!MYCROFT.MAYO.EDU!bmc
From: bmc@MYCROFT.MAYO.EDU
Newsgroups: comp.windows.x
Subject: Re: Colormaps.
Message-ID: <8910031252.AA02937@mycroft.mayo.edu>
Date: 3 Oct 89 12:52:42 GMT
References: <4092@ncsuvx.ncsu.edu>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 28


I don't know if this wil help, but the code I use to set colormaps on a similar
system is:

1) get a visual I can modify easily (usually pseudocolor)

     flag = XMatchVisualInfo (display, screen, 8, Pseudocolor, &VInfo);
     screen_visual = flag ? VInfo.visual : DefaultVisual (display, screen);

2) load colormap (set cells to the number of cells in your colormap)

     color.flags = DoRed | DoBlue | DoGreen;
     for (i = 0; i < cells; i++) {
         color.pixel = i;
         color.red = color.blue = color.green = 65535L * i / cells;
             /* grey scale example */
         XStoreColor (display, cmap, &color);
         }

Hope this helps.

--Bruce
----------------------------------------------------
Bruce M. Cameron                    bmc@bru.mayo.edu
Medical Sciences 1-14               (507) 284-3288
Mayo Foundation                     WD9CKW
Rochester, MN 55905
----------------------------------------------------