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From: lrp@math.camelot.DUPONTEOP.COM (Larry R. Paulhus-Software Development)
Newsgroups: comp.windows.x
Subject: XtAddWorkProc Question?
Keywords: X windows, XtAddworkProc, XtMailLoop, XtNextEvent
Message-ID: <567@math.camelot.DUPONTEOP.COM>
Date: 30 May 91 13:24:25 GMT
Organization: DuPont EOP, Morrisville, NC
Lines: 24

Help, I am attempting to integrate X and Motif with a third party object 
oriented graphics package.  I need the GUI process to check the IPC queue
periodically and I was planning to use XtAddWorkProc (or XtAppAddWorkProc)
to add a process to do just that.  My problem is this third party o. o.
graphics package doesn't call XtMainLoop.  Instead they have written
their own version of MainLoop that calls XtNextEvent and then XtDispatchEvent.

My question is:  Does XtAddWorkProc work on the XtNextEvent call (in the same
manner as XtAddTimeOut) or is it working at the XtMainLoop level.  I have
asked the o. o. graphics vendor and they do not know.  They suggested I use
XtAddTimeOut instead.  I could, but I would prefer to avoid the overhead of
setting a new TimeOut at the end of the function call.

Please mail your responses to me at lrp@mv.dupont.com (the mail address above
is different since we get our news feed from a different source than our mail).
I will forward responses to anyone who requests them or post a summary if there
is that much interest in my problem.

Thank you for your help.

Larry Paulhus			DuPont EOP, Morrisville, NC

				"My opinions are just that, mine.  
				DuPont doesn't pay me enough to express their's"