gui\Application::getObject PHP Method

    public function getObject($id)
    {
        return isset($this->objects[$id]) && $this->objects[$id] !== null ? $this->objects[$id] : null;
    }

 /**
  * Fire a event on a object
  *
  * @param int $id Object ID
  * @param string $eventName Event Name
  *
  * @return void
  */
 public function callObjectEventListener($id, $eventName)
 {
     $object = $this->application->getObject($id);
     if ($object) {
         $object->fire($eventName);
     }
 }