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From: stroyan@hpfcso.HP.COM (Mike Stroyan)
Newsgroups: comp.windows.x
Subject: Re: problems setting colormaps for subwindows...
Message-ID: <7320011@hpfcso.HP.COM>
Date: 21 Aug 90 00:26:15 GMT
References: <9008150543.AA14118@bullwinkle.unm.edu>
Organization: Hewlett-Packard, Fort Collins, CO, USA
Lines: 16

> With the ICCCM as it is, there's really no way for you to internally manage
> your colormaps (for example, by installing the colormap of a subwindow when
> the cursor enters it).  The most portable thing for you to do is to have each
> widget tree (i.e. shell widget and all its non-popup children) use the same
> colormap.  In other words, the children that have different colormaps should
> each be in a separate popup tree.

>	-paul asente

You _can_ manage the colormaps of subwindows with ICCCM rules.  You can
ask the window manager to favor particular subwindows by updating the
order of windows in the WM_COLORMAP_WINDOWS property when the mouse
enters and leaves subwindows.  The problem with doing this is that very
few window managers are correctly implementing the ICCCM behaviour.

Mike Stroyan, stroyan@fc.hp.com