🚀 go-pugleaf

Charles Montgomery <cmont@best.com> wrote:

>I'm trying to capture a button click to cancel an
>operation,
>but the listener never fires.  This isn't
>surprising - in other languages you have to
>manually check for windows messages from within
>your loop (e.g. Application.ProcessMessages in
>Delphi), but I can't find an analog in Java.  I
>tried creating another thread, but you have to
>loop to stay in run() and the event doesn't fire
>while you're in run().
>
>How do you do this in java?  I need to get the
>multi-thread approach working regardless because
>I'm also making JDBC calls and I need to let the
>user cancel the query, which requires another
>thread. It would also be nice to know if there's a
>way to check for events within a single thread.
>
>Thanks

The way I do this is as follows.  The application is a 24x7 thingie
which runs forever.

When the user selects the start menu item I create a thread which is
where all the work is done.

When the user selects the stop menu item (or application close) I set
a boolean bUserStoppedProcess = true, and put up a status display that
the application will stop shortly.

When the program is in a consistant state in my running thread I check
to see if the boolean has been set, and if so, close databases, do
some cleanup and return.

Rich
----------------------------------------------------------------------
Richard V. Downing              Work email: richard.downing@vsin.com
Senior Software Engineer        Home email: rvd@mindspring.com
VideoConferencing Systems, Inc. Web: http://rvd.home.mindspring.com
Norcross, Ga
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