func init
	// adds using namespace
	sys.add_use('Gtk')

	// initialize instance
	sys.add_gtkwidget('Button')

	// initialize properties
	sys.set_field('Label')

	// make methods for properties
	sys._prop_init('FocusOnClick', 0, 1, 104)
	sys._prop_init('Label', 0, 1, 2)

	// makes implementation of simple methods
	//sys._method_init('PerformClick')

	// initialize events
	if(not (this.onClick == 'defined'))
		sys.event_imp('onClick', '', this.props("Data").value)
	end
	sys.event_add('onClick', '', '', 'Clicked')

	if(not (this.onPressed == 'defined'))
		sys.event_imp('onPressed', '', this.props("Data").value)
	end
	sys.event_add('onPressed')

	if(not (this.onReleased == 'defined'))
		sys.event_imp('onReleased', '', this.props("Data").value)
	end
	sys.event_add('onReleased')

	// initialize common events and properties
	include("GtkWidget-init")
end

include('GtkWidget')