Path: utzoo!attcan!uunet!cs.utexas.edu!usc!ucsd!ucbvax!bloom-beacon!dcs.leeds.ac.UK!neilb
From: neilb@dcs.leeds.ac.UK (Neil Bowers)
Newsgroups: comp.windows.x
Subject: Re: Sharing window ID's between processes
Message-ID: <20863.9007260822@csparc1.dcs.leeds.ac.uk>
Date: 26 Jul 90 08:22:19 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 26

Hi Peter,

> I am having trouble getting an application program
> to draw into a window of another application. I get a
> X Protocol error "not a valid window ID".

I think your problem may be that the window hasn't actually
been created by the time the second application tries to
draw in it. The CreateWindow call may be buffered up,
and since the applications are using different display
connections, the second application's drawing requests
might get to the server before the CreateWindow.
If this is the case, flushing the buffer after you create
the window will solve you problem.

Hope this helps

Neil

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Neil Bowers,			JANET       : neilb@leeds.dcs
School of Computer Studies,	UUCP        : ukc!leeds.dcs!neilb
University of Leeds,		EARN/BITNET : neilb@dcs.leeds.ac.uk
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