title: Qt: Detect Double-Click with Modkey (Shift, CTRL, etc.)
body: <p>How can I detect whether a double click on a QWidget (QStatusBar, in my case) occured while a modifier key was held down?</p>
  
  <p>I can overload <code>void QWidget::mouseDoubleClickEvent ( QMouseEvent * event )</code> to get the double click, but how can I sure whether the widget receives the key events when it might not have the focus?</p>