I discovered a problem:

If I click the "Abort" button, the dialog-stuff goes away , and I am left with an empty frame.

I tied this in several contexts and in 'ptk_test.pl' (I developed) . Same thing happens in all cases.

A piece of pTk subtlety I noticed:

-label => $header_msg,  -- Sticks a label outside the frame
-text  => $header_msg   -- Sticks a STRING OF TEXT inside the frame
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Why the difference?

2022-02-23 Athanasius added code and paragraph tags.