title: How to simulate a QTreeWidget itemClicked signal without making a derived class?
body: <p>I am unable to find a proper simulation for ItemClicked() SIGNAL for QTreeWidget. </p>
  
  <p>Is there a way to simulate it so that ItemClicked Signal is generated ? </p>
  
  <p>e.g: we can emit ItemClicked in a derived class of QTreeWidget but cannot (as a QT rule) outside of it.</p>