Communication between applications using "RegisterWindowMessage" and "SendMessage"

Thread View: borland.public.cppbuilder.nativeapi

2 messages

[T] Back to Threads [V] Tree View [G] Group Articles

2 total messages Started by Jim Donachiue Mon, 24 Mar 2003 19:49

#17428

Author: Jim Donachiue
Date: Mon, 24 Mar 2003 19:49

7 lines
1188 bytes

Communication between applications using "RegisterWindowMessage" and
"SendMessage"

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

PLease help.

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

#17429

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

21 lines
1772 bytes

"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

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads