in reply to Wheel stuck in rut
Hi,
See https://metacpan.org/pod/Tk::bind#D
$ perl -le " use Tk; $mw = tkinit; $mw->bind(q/<MouseWheel>/,sub{print + $Tk::event->D} ); MainLoop; " -120 -120 120 120
Also see "DynaMouseWheel"
In Section
Seekers of Perl Wisdom