Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!sun-barr!decwrl!gilroy.pa.dec.com!klee
From: klee@gilroy.pa.dec.com (Ken Lee)
Newsgroups: comp.windows.x
Subject: Re: Virtual colormaps & DECwindows
Message-ID: <1615@bacchus.dec.com>
Date: 24 Jul 89 22:23:23 GMT
References: <8286@boring.cwi.nl> <223@nap1.cds.wpafb.af.mil> <8907240118.AA18657@jumbo.pa.dec.com>
Sender: news@decwrl.dec.com
Lines: 28

In article <8286@boring.cwi.nl>, guido@cwi.nl (Guido van Rossum) writes:
> Mark Manasse replies:
> 
> >The currently-shipped version of dxwm keeps 
> >track of what it believes to be the focus window for colormap, and 
> >keeps that window's colormap installed.  Since the current release 
> >of dxwm predates the ICCCM's adoption of COLORMAP_WINDOWS, it does 
> >not implement that feature of the ICCCM.
> 
> Mark's explanation seems to imply that you can't get a colormap
> installed at all by dxwm, but life isn't that bad.  Some playing with
> Doug Young's coloredit example (which needs some lay-out changes for 256
> colors, BTW!) reveals that calling XSetWindowColormap(display, window,
> colormap) works, both for twm and for dxwm.  Young claims this is
> the ICCCM-conformant way. 

Actually, there are 2 different ICCCM proposals for colormaps.  The
X11R2 colormap proposal uses the RGB_COLOR_MAP property.  This is used
by the UWS2.1 version of dxwm and by the X11R3 XSetWindowColormap.  The
X11R4 colormap proposal (proposed in January and I think recently
accepted as the standard) uses the COLORMAP_WINDOWS property.  X11R4
clients using the COLORMAP_WINDOWS property will not work with properly
the UWS2.1 dxwm.

Ken Lee
DEC Western Software Laboratory, Palo Alto, Calif.
Internet: klee@decwrl.dec.com
uucp: uunet!decwrl!klee