title: Right-click on a NSStatusItem
body: <p>I have a <code>NSStatusItem</code> and I want to popup a menu by rightclicking the item. I subclassed a NSView and overwrote the <code>- (void)rightMouseDown:(NSEvent *)event</code> method. I also implemented <code>- (void)mouseDown:(NSEvent *)event</code> for looking at the modifierflags. My problem is, that the view does not recieve the <code>NSRightMouseDown</code>-Event. And I don't know why? Any ideas how to get this event? Naturally I added the custom view to the statusitem.  </p>
  
  <p><strong>- UPDATE -</strong><br>
  Additional information: I have added a NSImageView to my custom view's subviews.  </p>
  
  <p><strong>- UPDATE 2 -</strong><br>
  Additional information: It conforms to the <code>NSMenuDelegate</code> protocol.</p>