Can't get VX-Rexx's WinPostMsg to work! Need help.

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2 total messages Started by Keith Bennett Fri, 28 Feb 1997 00:00

#4908

Author: Keith Bennett
Date: Fri, 28 Feb 1997 00:00

25 lines
1605 bytes

I am trying to use VX-Rexx's WinPostMsg function to post a message to
a window in another process.  This other process is not a VX-Rexx
app, but a C++ app also written in-house.

I seem to successfully get the window handle of the target window,
but when I call WinPostMsg using that handle, it returns 0
(indicating failure if I understand the docs correctly).

I pass the window handle to WinPostMsg in the form of an 8-digit hex
number, by itself and then prefaced by "?HWND" as listed in the docs.
Neither way appears to work.

I log VRError() to a file, but it's blank.

Is there something I'm doing wrong?  Or is this an impossible task?

Thanks for any help.
- Keith

-- 
--------------------------------------------------------------------------
Keith Bennett                             Bennett Business Solutions, Inc.
Silver Spring, MD USA                     C++ Software Development
kbennett@cpcug.org                        (301) 871-7696

Re: Can't get VX-Rexx's WinPostMsg to work! Need help.

#4906

Author: Randy McGinin
Date: Sat, 01 Mar 1997 00:00

33 lines
1738 bytes

Keith Bennett wrote:
> 
> I am trying to use VX-Rexx's WinPostMsg function to post a message to
> a window in another process.  This other process is not a VX-Rexx
> app, but a C++ app also written in-house.
> 
> I seem to successfully get the window handle of the target window,
> but when I call WinPostMsg using that handle, it returns 0
> (indicating failure if I understand the docs correctly).
> 
> I pass the window handle to WinPostMsg in the form of an 8-digit hex
> number, by itself and then prefaced by "?HWND" as listed in the docs.
> Neither way appears to work.
> 
> I log VRError() to a file, but it's blank.
> 
> Is there something I'm doing wrong?  Or is this an impossible task?
> 


First of all, there is an excellent sample provided by Watcom
that illustrates this called (Window Controller).

Secondly, use SendKeyString Method instead of WinPostMsg

ok = VRMethod( "Application", "SendKeyString", w, data )

Thirdly, set focus to the window prior to issuing either
the SendKeyString, or the WinPostMsg, by using the SetFocus
method.

Hope this helps

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