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From: ekberg@asl.dl.nec.COM (Tom Ekberg)
Newsgroups: comp.windows.x
Subject: Re: Creating & Installing a Colormap
Message-ID: <9104221445.AA02402@aslss01.asl.dl.nec.com>
Date: 22 Apr 91 14:45:50 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 15


 > I am using Xlib and  need to install a colormap with very specific RGB
 > values for each pixel. I basically want to specify shades of 1 color
 > with increasing intensities. 
 > eg.
 > R	G	B
 > 250	20	20
 > 245	20	20
 > 240	20	20

The problem is that color values are scaled to 65535 (0..65525) and not 255
(0..255).  If you multiply your values by 256 you will be much closer to the
colors that you want.

  -- tom, ekberg@asl.dl.nec.com (x3503)