title: On Qt widgets like DoubleSpinBox or ComboBox, how do i have custom right click menu
body: <p>I have a few combo-boxes and  double spin boxes on my Qt Dialog. Now I need a "ResetToDefault" item on a menu that comes up when you right click on the widget (spin box or combo box).</p>
  
  <p>How do i get it. Is there some way I can have a custom menu that comes up on right click or Is there a way i can add items to the menu that comes on right click.</p>