See Perl documentation documentation, Searching Perl Documentation, How to Read Perldocs

 [ddg://site:perlmonks.org Tk Button bind], [tk bind button] site:perlmonks.org Tk Button bind, tk bind button -> How can I un-bind a button in Perl Tk

$ perldoc -l -m Tk
C:\citrusperl\vendor\lib\Tk.pm

$ ack -hi ">bind.*button" C:\citrusperl\vendor\lib\Tk |tail
 $mw->bind($class,'<Control-ButtonRelease-1>','Control_ButtonRelease_1
+');
 $mw->bind($class,'<ButtonRelease-1>','ButtonRelease_1');
 $mw->bind($class,'<B1-Motion>',[ 'Button1Motion' ] );
 $mw->bind($class,'<Double-ButtonPress-1>',['Double1']);
 $mw->bind($class,'<Control-ButtonPress-1>',['CtrlButton1']);
 $mw->bind($class,'<Control-Double-ButtonPress-1>',['CtrlButton1']);
    $e->bind('<ButtonRelease-1>' => sub {
    $e->bind('<ButtonRelease-1>' => undef);
 $mw->bind($class,'<Button-6>',     ['xview','scroll',-1,'units']);
 $mw->bind($class,'<Button-7>',     ['xview','scroll',1,'units']);
[download]

$ which -a widget
C:/citrusperl/vendor/bin/widget
C:/citrusperl/vendor/bin/widget.BAT

$ head C:/citrusperl/vendor/bin/widget
#!/usr/bin/perl

use 5.008;
use Config;
use Tk 804.000;
use lib Tk->findINC( 'demos/widget_lib' );
use Tk::widgets qw/ DialogBox ErrorDialog LabEntry ROText /;
use Tk::Config ();
use WidgetDemo;
use subs qw/
[download]

perl Tk help, RFC: Learning Perl/Tk, Perl/Tk: For Beginners, Re^3: Tkx Search for dialog box for text input , Re: TclTk interface with Perl code, is it possible? , Re^2: GUI toolkit+designer for the perl newbie , Re: Easier GUI, Re: Should I use Perl/TK?, Re^2: need a popup gui stdin, Tk Tree Tutorial ( http://www.rtapo.com/tutorials/tk_tree.html ), some Tkx tutorial links, Tutorial http://theoryx5.uwinnipeg.ca/perltk/ and http://www.perl.com/pub/1999/10/perltk/, http://perltk.org/, http://web.archive.org/web/20100310202528/http://theoryx5.uwinnipeg.ca/perltk/

Leverage all available resources :)