You should be able to just call the $label->update method to refresh the label object.

Update: First time I had a requirement to do that, it took ages to find in the documentation. Tk uses inheritance heavily, when looking for documentation of something you want to do, its important to look at the 'this widget also inherits all the methods in tk::xyz' section at the bottom of the perldoc, as you may well find what you're looking for in the docs for a widget class further up the inheritance chain

VGhpcyBtZXNzYWdlIGludGVudGlvbmFsbHkgcG9pbnRsZXNz

In reply to Re: TK subroutine status by g0n
in thread TK subroutine status by K_M_McMahon

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