Re: Communication between applications using "RegisterWindowMessage" and "SendMessage"

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#17429

From: Remy Lebeau (TeamB)
Date: Mon, 24 Mar 2003 20:07

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"Jim Donachiue" <jdonachiue@bjservices.ca> wrote in message
news:3e7f6162$1@newsgroups.borland.com...

> I am using C++ Builder version 4 and I am trying to
> cummunicate with a VB app.

Communication is what way exactly?  Will you be sending the message to the
VB app, or the other way around?  Please be more specific.

If the former, than do you have the HWND for the VB app?  You'll need to
obtain that because you can use SendMessage().  If you do have it, then just
call RegisterWindowMessage() and pass the return value as the uMsg parameter
of SendMessage().

If the latter, then you need to call RegisterWindowMessage() at program
startup, store the return value to a variable, then have your form override
the inherited WndProc() method to test messages for that value.


Gambit

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From: "Remy Lebeau \(TeamB\)" <gambit47@yahoo.com>
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Subject: Re: Communication between applications using "RegisterWindowMessage" and "SendMessage"
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