gistfile1.php

<?php

class BobWindow extends GtkWindow {
	public function __construct() {
		parent::__construct();

		$this->set_size_request(256,256);
		$this->set_title('BobWindow');
		$this->set_position(Gtk::WIN_POS_CENTER);

		$this->connect_simple('delete-event',function(){
			Gtk::main_quit();
			return;
		});

		$this->connect_simple('configure-event',function(){

			// this is where the problem is.
			while(Gtk::events_pending() || Gdk::events_pending())
				Gtk::main_iteration();
			// with this.

			list($w,$h) = $this->get_size();
			list($x,$y) = $this->get_position();
			echo "{$w}x{$h} @ {$x},{$y}", PHP_EOL;

			return;
		});

		$this->show_all();
		return;
	}

}

$w = new BobWindow;
Gtk::main();

?>