thanks
tybalt89 for you working example: it turned out i was looking at the wrong part of Mastering Perl Tk book (chapter 13.22. Time Delays contains useful informations: i was on Anatomy of MainLoop).
My problem with ?: was the worst Perl gaffe by me since years..
You should never sleep() in a Tk program. I suspected this, and sounds like a good motto. It reminds me to an older one dormitare cogitantem de fuga vetat that translates more or less in: to sleep is forbidden to those plaining an escape
L*
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.
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