I am using ActivePerl 5.12.2 on Windows 7. I noticed that when I attach a scrollbar to either a listbox or a tree that the mouse wheel will allow me to scroll down the list, but not allow me to scroll up the list.

Here is a sample program using a listbox:

#!/usr/bin/perl -w

use strict;
use Tkx;

my $mw = Tkx::widget->new(".");
my $lb = $mw->new_tk__listbox(-height => 10);
$lb->insert("end", 1..100);
$lb->g_grid(-column => 0, -row => 0);
my $sb = $mw->new_ttk__scrollbar(-orient => 'vertical', -command => [$
+lb, 'yview']);
$sb->g_grid(-column => 1, -row => 0, -sticky => "ns");
$lb->configure(-yscrollcommand => [$sb, "set"]);

Tkx::MainLoop();

[download]

I don't think I am doing anything wrong here, but thought I would ask the Monks for their thoughts. I find that I am now looking at binding MouseWheel events to the listbox and spending a lot more time on this than may even be necessary. Can somebody confirm the behavior with the script above?

Thanks!

In reply to Perl::Tkx Mousewheel Scrolling by Zucan

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