How to wait on a modal dialog

[Jonathan Hayward <christos.jonathan.hayward@xxxxxxxxx>]

In converting a non-event-driven application which works off of being
able to wait for user input before continuing, I want to put up a modal
dialog, and continue when I have the user's input. I have interpreted
this as: Display the modal dialog, wait for an answer (using usleep),
and return a value. (Is the best approach?)

When I implement this, the application hangs before finishing two other
windows, and doesn't display the modal dialog. If I comment out the
"wait for an answer" code, it displays, but without catching the answer.

Is there a good way to put up a modal dialog and wait for an answer?

-- 
++ Jonathan Hayward, jonathan.hayward@xxxxxxxxx
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