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From: rws@EXPO.LCS.MIT.EDU (Bob Scheifler)
Newsgroups: comp.windows.x
Subject: Re: Where is WM_COLORMAP_WINDOWS
Message-ID: <8911041425.AA01511@expire.lcs.mit.edu>
Date: 4 Nov 89 14:25:45 GMT
References: <4978@ncar.ucar.edu>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
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    A grep of X11/*.h fails to find this. (In particular, its
    not in Xatom.h . Am I missing something or is this something new for
    release 4?

The X protocol defines some "pre-defined" atom values in an attempt to
avoid round-trip InternAtom requests by lots of clients.  But there
are certainly atom names in the ICCCM that aren't in the pre-defined set.
For those (like WM_COLORMAP_WINDOWS) you have to call XInternAtom to
get the value.  The R4 Xlib will have routines for most (all?) of the
ICCCM-related stuff, so e.g. you'll be able to call XSetWMColormapWindows
and Xlib will take care of creating the appropriate atom on demand.