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From: grp@Unify.com (Greg Pasquariello)
Newsgroups: comp.windows.open-look
Subject: Re: Does OpenLook have a "broadcast" mechanism
Message-ID: <1991Mar6.130514@Unify.com>
Date: 6 Mar 91 21:05:14 GMT
References: <300@elder.ukc.ac.uk>
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Reply-To: grp@Unify.com (Greg Pasquariello)
Organization: Unify Corporation, Sacramento, CA, USA
Lines: 35

In article <300@elder.ukc.ac.uk>, rlh2@ukc.ac.uk (R.L.Hesketh) writes:
> 
> I remember reading somewhere about a "broadcast" mechanism  for OpenLook
> which allows global preferences and resource settings to be modified and
> sent to all currently executing applications.   I have checked the
> only articles I have on OpenLook (the Autumn'88 edition of SunTechnology)
> but couldn't find any references to this mechanism.
> 
> Does this mechanism exist in OpenLook and if so where and are there
> any papers that mention its concept/design/use ??

This is accomplished by watching for changes to the RESOURCE_MANAGER
property on the root window.  The OLIT toolkit provides library routines
that do this.  If you're interested, there is an example of to use these
in my article in the January XNextEvent.  If you are using XView, I cannot 
tell you if similar routines exist or not.

> 
> Is this the way Property Windows work?

Some, yes.

> 
> Thanks for any info,
> 
> Richard Hesketh
> Computing Lab., University of Kent at Canterbury,
> Canterbury, Kent, CT2 7NF, United Kingdom.
>         Tel: +44 227 764000 ext 7620/7590      Fax: +44 227 762811

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Greg Pasquariello	grp@unify.com
Unify Corporation 	Be good and never poison people