How to destroy a window?

[Toshio Kuratomi <badger prtr-13 ucsc edu>]

Okay.  I have a really foolish question.

I have an app that has multiple top level windows of equal importance.

I want to be able to destroy each window individually. When the last window
closes, the app should exit.  How do I do this?

-Toshio <badger@prtr-13.ucsc.edu>
-- 
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