comment on

readline is blocking, this part while (defined ($freeze_line =<freeze_script>) )

while that is happening MainLoop is stuck

This is typical of perl on windows

Re^5: Client/Server sockets with TK on Win32, tk, fileevent, and MS Windows, Re: Please suggest a non-forking way to do this (OS: windows) (solution)

The OP should be using modules to organize his code ... or if he really wants to stick with capturing the output of other scripts he should use threads

In reply to Re^2: Perl tk gui freezes after pop up list is launched. (readline) by Anonymous Monk
in thread Perl tk gui freezes after pop up list is launched. by john.tm

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