Have you seen http://cpansearch.perl.org/src/TSCH/Gtk2-1.221/examples/thread_usage.pl? Does that answer any questions for you?

In reply to Re: What is the usage of "use Gtk2 -init -threads-init"? by Anonymous Monk
in thread What is the usage of "use Gtk2 -init -threads-init"? by llancet

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