PHP Box::show 예제들

{
    private $mainWidget;
    public $button1;
    public $button2;
    function __construct()
    {
        $mainWidget = new QWidget();
        parent::__construct(QBoxLayout::TopToBottom, $mainWidget);
        $this->mainWidget = $mainWidget;
        $this->button1 = new QPushButton("About Qt!");
        $this->button2 = new QPushButton("Quit");
        $this->addWidget($this->button1);
        $this->addWidget($this->button2);
    }
    function __destruct()
    {
        $this->button1 = 0;
        $this->button2 = 0;
        $this->mainWidget = 0;
    }
    function show()
    {
        $this->mainWidget->show();
    }
}
$app = new QApplication($argc, $argv);
$box = new Box();
$box->show();
QObject::connect($box->button1, SIGNAL("clicked()"), $app, SLOT("aboutQt()"));
QObject::connect($box->button2, SIGNAL("clicked()"), $app, SLOT("quit()"));
$app->exec();