#!/usr/bin/perl

# http://perlmonks.org/?node_id=1213205

use strict;
use warnings;
use Tk;
use Tk::ROText;

my $mw = MainWindow->new( -bg=> "#000000", -borderwidth=> 0); 
$mw->geometry( '1000x600' );

my $LB = $mw->Scrolled ( 'ROText',
            -bg => '#C0C0C0', 
            -fg => '#000000', 
            -selectforeground => '#000000', 
            -selectbackground => '#C0C0C0',
            -font => 'Courier 16 normal', 
            -relief => 'groove', 
            -cursor => 'top_left_arrow',
            -scrollbars => 'e',
        )->pack( -side => 'right', -expand => 1, -fill => 'both', );

sub selectAccount {
    my $this = shift;
    print "select: $this\n";
    $LB->tagConfigure("A$_", -background => 'grey') for 1..200;
    $LB->tagConfigure("A$this", -background => 'yellow');
}
sub markAccount {
    my $this = shift;
    print "mark: $this\n";
    my $fontref = $LB->tagCget("A$this", -font);
    my $font = $fontref ? $$fontref : 'Courier 16 normal';
    my $new = $font =~ /normal/ ? 'Courier 16 bold' : 'Courier 16 norm
+al';
    $LB->tagConfigure("A$this", -font => $new);
    
}
sub InitializeListBox {
    $LB->delete('1.0','end');
    #for (my $i=1; $i<200; $i++) {
    for my $i (1..200) {
        $LB->insert('end', $i x 10, "A$i" );
        $LB->tag( 'bind', "A$i", '<Button-1>'  => sub { selectAccount(
+$i) } );
        $LB->tag( 'bind', "A$i", '<Double-1>'  => sub { markAccount($i
+) } );
        $LB->insert('end', "\n" );
     }
}

InitializeListBox();

MainLoop;
[download]

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