- QObject *root = engine.rootObjects().first();
- QQuickWindow *window = qobject_cast<QQuickWindow *>(root);
- QObject::connect(window, SIGNAL(frameSwapped()), layoutHandler, SLOT(slotActivateSurface()));
+// QObject *root = engine.rootObjects().first();
+// QQuickWindow *window = qobject_cast<QQuickWindow *>(root);
+// QObject::connect(window, SIGNAL(frameSwapped()), layoutHandler, SLOT(slotActivateSurface()));