Not directly with that module.

I don't use Tk, so I don't really know alternatives to that, but I assume that you can look at the source code and adapt it so your callback gets run in a fileevent callback for the handle to the child process.

In reply to Re^7: How to perform a subroutine run in cpan Tk::ExecuteCommand module by Corion
in thread How to perform a subroutine run in cpan Tk::ExecuteCommand module by Janish

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