Re: User Feedback for Subroutines with Long Execution Time by petesmiley
There are some good answers here, but they strike me as a little complicated. Why not just pass a reference to a sub that handles the info. Then all you have to do in your subroutine is call the reference on each iteration.
This is good if you're not looking for something pretty, and takes about 3 extra minutes to code.

smiles

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My thoughts exactly. I did something like this with a Perl/Tk script which compressed VERY large files. I re-wrote Zip.pm to include a referenced variable in which I put the percentage done. Then I just updated the TopLevel widget regularly.
-Arden.