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Modeless dialog



This question may reveal a complete misunderstanding of
Java programming.

In the actionPerformed() method of a "JMenu implements ActionListener"
the code calls a function that computes (it writes a file) for
a lengthy time.  The code puts up a modeless dialog with a cancel
button and polls the dialog object to see if the cancel button
has been pressed.

The cancel button is never selected (unless I cause an exception
and kill the thread writing the file).

I suspect that the code is running on the action thread and
therefore there is no thread to process the button event.

Is there a simple "fix" or am I doing something horribly
wrong.  Too much Windows and OS 9 programming under the belt
so I tend to do things "the old way".  After all I believe
that you can write Fortran programs in any language.

Thanks for your patience.
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