I had a similar problem, and solved it with threads (just use the latest stable Perl out there, the threads module was improved after 5.8 I think), see here: Marrying Tk, threads and SerialPort - a COM port monitor

It's a complex program that involves more than *just* Tk + threads. The threads part gave me least problems - it works very nicely.

In reply to Re: Perl/Tk while {1} and a responsive UI by spurperl
in thread Perl/Tk while {1} and a responsive UI by ady

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