title: Figuring out which menu item was triggered in Qt
body: <p>In a Qt application, I have a bunch of automatically-created QActions (menu items) that I add to a menu in the menu bar. Each opens a different file. I'd like to connect them all to the same slot so as to not write the same code many times. From that slot, though, how do I figure out which of the QActions was triggered?</p>
  
  <p>(Example: In Cocoa I'd do this with the sender parameter in the action selector.)</p>
  
  <p>Thanks!</p>