ass="reference" href="#addHandler,EventHandler,proc(EventArgs)"
    title="addHandler(handler: var EventHandler; fn: proc (e: EventArgs))"><wbr />add<wbr />Handler<span class="attachedType" style="visibility:hidden">EventHandler</span></a></li>
  <li><a class="reference" href="#removeHandler,EventHandler,proc(EventArgs)"
    title="removeHandler(handler: var EventHandler; fn: proc (e: EventArgs))"><wbr />remove<wbr />Handler<span class="attachedType" style="visibility:hidden">EventHandler</span></a></li>
  