Re: Launch a doc file with Process.Start(my.doc), need to know when the file is closed.

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From: Paul Clement (UseAdddressAtEndofMessage_at_swspectrum.com)
Date: 12/09/04 

Date: Thu, 09 Dec 2004 08:03:48 -0600

On Wed, 8 Dec 2004 10:56:36 -0600, "Tony" <tonyng2@spacecommand.net> wrote:

¤ I'm storing documents and images in a client database.
¤
¤ I want to be able to launch a document or image into the proper application
¤ that can view or modify the object. I do this by copying the object from the
¤ database to the temp directory then calling Process.Start(filename) which
¤ launches the correct application and displays the file - all works great.
¤
¤
¤
¤ My problem now is, I want to know when the application is finished with the
¤ file so I can prompt the user and ask if they want to store the changes (if
¤ any) back in the database (similar to how outlook works when editing an
¤ attachment).
¤
¤
¤
¤ I know I can use SystemFileWatcher to be notified when the file is written
¤ to but that could happen more than once (intermediate saves) while the user
¤ is editing the file. I only want to prompt the user once. It doesn't have an
¤ event to see when the file is closed, just modified, etc.
¤
¤
¤
¤ Also, I need to clean up the temp file when the user is done with it but I
¤ don't know how to detect when the user shuts down the process that is
¤ viewing the file (I don't even know which process is being used or if it's
¤ using a shared process (in the case of Excel) or it's own in the case of
¤ Word, etc.
¤
¤
¤
¤ Does anyone know how to detect when a file is closed or know another way to
¤ deal with this issue?
¤

One thing you can try is handling the Close event from the automation client:

How To Handle Events for Microsoft Word Using Microsoft Visual Basic .NET
http://support.microsoft.com/default.aspx?scid=kb;en-us;302816

Paul ~~~ pclement@ameritech.net
Microsoft MVP (Visual Basic)

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