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From: iansmith@dali.cc.gatech.edu (Ian Smith)
Newsgroups: comp.windows.x
Subject: Re: Request for info on X window sharing systems
Message-ID: <1991May24.120031@dali.cc.gatech.edu>
Date: 24 May 91 16:00:31 GMT
References: <1991May22.211831.5912@spectra.com> <7320020@hpfcso.FC.HP.COM>
Sender: news@prism.gatech.EDU
Reply-To: iansmith@warhol.gatech.edu
Organization: Software Engineering Research Center's Multimedia Lab
Lines: 49

In article <7320020@hpfcso.FC.HP.COM>, garfinkel@hpfcso.FC.HP.COM (Dan
Garfinkel) writes:
|> > I would like any information anyone would be kind enough to
provide
|> > on Shared X or any other real-time window-sharing systems that run
under
|> > X (xmx, shX, etc.)  I'm also interested to know whether there are
any 
|> > commercial/supported implementations of such a thing.
|> 
|> Yes, HP SharedX is now a commercial and supported product available
from
|> HP.  See the note in comp.windows.x.announce for a copy of the
product 
|> announcement.
|> 
|> -Dan
Hm.  I wonder how you system addresses a couple of my issues with
window sharing in X:
1) How does it handle heterogenous visual classes? Can I run a shared
session on monochrome and color workstation simultaneously?  
If so, what visual class does the shared window system present to
clients?
2) How does it handle window management contention? If it shares 
"windows" and not "workstations" how do you avoid local copies of
the applications having dissimilar sizes? If you try to enforce the
same sizes on all copies, how do you avoid race conditions and 
potential "oscillations" that cant be stopped?
3) What about cut and paste? Does it have its own set of atoms, or 
when I select something in the shared space does it snarf the selection
away from private applications on other workstations?
4) Floor Control?  What policies are available and how are they
enforced?
5) Does it support truly multi-user applications? Are you using your
protocol extension to support applications that present different
views to different servers?
6) Does it allow new users to be brought in to existing "sharings"
of windows? Can people leave and go as the please in a session? Can
I keep a "conference" going while no-one is using the software?
thanks for your help,
ian

--
"Daddy what's regret?"
"Well son, all I can say is its always better to regret something you
have
done, than to regret something you haven't done. And, if you see you
mother
this afternoon..."  --Gibby