combo box events

[Bob P <ex-freek yahoo com>]

I have a combo box in my program, and i would like to update a few
labels when the selection is changed.  The problem is, i have no idea
which signal to capture.  I want to create a callback, so whenever the
you click the down arrow then click on a selection, it raises an event.
 I could then change the labels to reflect the new selection.

Thx in advance for any help,
Bob

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