The most basic way of connecting a signal to a callback is by using
connect() method. All classes descended from GtkObject have it. For
example, to respond to a 'clicked' signal on a GtkButton widget, you would
do this:
<?php
function on_ok_clicked($button) { }
$ok_button->connect('clicked', 'on_ok_clicked');
?>
If you wanted to connect to a class method or an object method, you have to use
a special syntax for denoting that:
<?php
class A {
function on_ok_clicked($button) { }
}
$ok_button->connect('clicked', array('A', 'on_ok_clicked')); // connect to a class method
$a_obj = new A();
$ok_button->connect('clicked', array(&$a_obj, 'on_ok_clicked')); // connect to an instance method
?>
