I tried to display the value of a spinbutton in hexadecimal form. It is always displayed in decimal.

Example code:

#!/usr/bin/perl

use strict;
use warnings;

use Gtk2 -init;

my $dialog = Gtk2::Dialog->new('Test', undef, [ 'GTK_DIALOG_MODAL', 'GTK_DIALOG_DESTROY_WITH_PARENT' ], ('gtk-close', 'close'));

sub _cb_spin($$)
{
	my ($widget, $self) = @_;
	my $value = $widget->get_value_as_int();
	my $str = sprintf("0x%x", $value);
	$widget->set_text("$str");
	return 0;
}

my $vbox = $dialog->get_content_area();
my $spin = Gtk2::SpinButton->new_with_range(0x0, 0x70000, 0x10000);
$spin->signal_connect('output', \&_cb_spin);
$spin->set_value(0x30000);
$vbox->add($spin);
$vbox->show_all();
$dialog->run;


The callback is active, but the text does not change. When returning '1' from the callback, i get no output at all.