The referenced threads do appear to accomplish what you ask for. However, I consider it a bad idea to mix GUI with command-line interface in the same script. It may confuse your users more than help them. The somewhat non-standard code will be a maintenance problem for the life of your script.
Bill

In reply to Re^3: Perl Tk unable to return from MainLoop when implemented in a subroutine by BillKSmith
in thread Perl Tk unable to return from MainLoop when implemented in a subroutine by ngocanh

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