#!/usr/bin/perl

use strict;
use Tk;

my $after_id;

my $mw = MainWindow->new();
$mw->Label(-text => "Type a phrase in the entry box below")->pack();
$mw->Label(-text => "Then click once to print all of it")->pack();
$mw->Label(-text => "Or double-click to print just one word")->pack();
my $ent = $mw->Entry(-width => 25)->pack();

$ent->bind( "<Double-Button-1>", [\&print_me, "word"] );
$ent->bind( "<Button-1>", 
            sub {
              $after_id = $ent->after( 500, [\&print_me, $ent] )
            }
          );

MainLoop;


sub print_me
{
    my ( $widget, $mode ) = @_;
    my $content = $widget->get();
    if ( $mode eq "word" ) {
        $widget->afterCancel( $after_id );
        my $start = $widget->index( 'sel.first' );
        my $length = $widget->index( 'sel.last' ) - $start;
        print "you double-clicked the word: " .
            substr( $content, $start, $length), $/;
    } else {
        print $content,$/;
    }
}