While I'm not "up" on the Perl Tk bindings. I'm wondering if there was already a Module, or application. That already implements what you're attempting to achieve. If so, maybe examining the source would provide the clues you need. Or at least a start.

HTH

--Chris

EDIT: looks like choroba was providing an example while I was writing this. 
Hey. I'm not completely useless. I can be used as a bad example.

In reply to Re: Changing the button function by taint
in thread Changing the button function by kkma

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