Date: Thu, 23 Apr 1998 19:14:18 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: G DOT DegliEsposti AT ads DOT it
cc: djgpp AT delorie DOT com
Subject: Re: Interfacing to a MS-Windows application: How ?
In-Reply-To: <C12565EF.00466DC4.00@vega.ads.it>
Message-ID: <Pine.SUN.3.91.980423191147.11501C-100000@is>
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On Thu, 23 Apr 1998 G DOT DegliEsposti AT ads DOT it wrote:

> There are still problems in sinchronization... I don't know if Libwin
> allows interception of windows messages, but it seems very difficult, so the
> clipboard approach would not be available...

Synchronization can be also achieved with disk files.  Make 
simulation.exe create a file with a distinct name (which is known to 
Excel) when it finishes.  For example, you could have Excel pass the name 
of that file as a command-line argument to simulation.exe.  You can then 
periodically test for existence of that file.