code: function onMouseWheel(e) {
         /* jshint expr:true */
         if (e.target === me.video.renderer.getScreenCanvas()) {
           // create a (fake) normalized event object
           e.type = "wheel"; // dispatch mouse event to registered object
  
           return dispatchEvent(normalizeEvent(e));
         }
  
         return true;
       }
docs: mouse event management (mousewheel)
  XXX: mousewheel is deprecated
  @ignore