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Article #9654

Re: FindWindow in different session in XP

#9654
From: Remy Lebeau (TeamB)
Date: Mon, 28 Jun 2004 17:09
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"Fred W." <fwestphal@tomtec.com> wrote in message
news:40E01817.DAEBAD67@tomtec.com...

> I am developing a service which needs to communicate
> with a user application using inter-process communications.

You can't use window messages for that anyway.  Services run under a
completely different desktop and workstation to begin with, thus a service
could not find, let alone send messages to, a window on a different desktop,
and vice versa.  For IPC with a service, you should use ActiveX/COM, RPC,
Named Pipes, or TCP sockets instead.

> One thought is too somehow have the service spawn a
> process in the active session. I could than preserve the
> Windows Messaging protocol I have already developed.

The spawned process would still be running in a different
desktop/workstation than the service, thus window messages still unusable.

> The other obvious thought is too rewrite my code using a
> better IPC method that can more easily handle the
> multi-session scenario.

Yes.


Gambit
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Subject: Re: FindWindow in different session in XP
Date: Mon, 28 Jun 2004 10:09:15 -0700
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