https://forum.qt.io/topic/21865/custom-qwhatsthis-for-menu-item-or-how-to-capture-qwhatsthis-event-for-menu-selections
Custom QWhatsthis for menu item (or how to capture QWhatsThis event for menu selections) | Qt Forum
Jul 23, 2013 - I need to launch my own help system using the QWhatsThis event. I have an event filter installed on my application and can capture the QWhatsThis event for ...