QTabBar::tabInserted(int..) never calls

I am trying to overload a QTabBar function, strangely it never calls...

Code:

---

void MyTabt::tabInserted(int index){
	qDebug()<<"the function that never calls !!";
	emit refreshOnTabAdd();
}

---

Any suggestion will be very helpful to me.
thanks

Did you remember to set the tabbar to a tabwidget? :)