#!/usr/bin/perl
use warnings;
use strict;
use Glib qw/TRUE FALSE/;
use Gtk2 '-init';

# $object->get_data (key) and $object->set_data (key,val), 
# but only with unsigned integers. This gives them limited 
# usefulness. Just use hash keys unless you really know what 
# you're doing.

my $window = Gtk2::Window->new('toplevel');
$window->set_title('Storing arbitrary data in objects ');
$window ->signal_connect( 'destroy' => \&delete_event );
$window->set_border_width(10);
$window->set_size_request(300,200);

my $vbox = Gtk2::VBox->new( FALSE, 6 );
$window->add($vbox);
$vbox->set_border_width(2);

my $hbox= Gtk2::HBox->new( FALSE, 6 );
$vbox->pack_end($hbox,FALSE,FALSE,0);
$hbox->set_border_width(2);

my $frame0 = Gtk2::Frame->new('Controls');
$vbox->pack_end( $frame0, FALSE, FALSE, 0 );
$frame0->set_border_width(3);

my $hbox0 = Gtk2::HBox->new( FALSE, 6 );
$frame0->add($hbox0);
$hbox0->set_border_width(3);

my $button = Gtk2::Button->new_from_stock('gtk-quit');
$hbox0->pack_end( $button, FALSE, FALSE, 0 );
$button->signal_connect( clicked => \&delete_event );


my $button_test = Gtk2::Button->new('Test-value');
$button_test->{'testdata'} = 'fefifofum';

$vbox->pack_start( $button_test, FALSE, FALSE, 0 );
$button_test->signal_connect( clicked => \&test_event );

$window->show_all();
Gtk2->main;
#####################################
sub delete_event {
Gtk2->main_quit;
return FALSE;
}  
########################################
sub test_event {
   my $but = shift;
   print $but->{'testdata'},"\n";     
}