Method removeTimer

visage_ui/events.cpp:69–73

  }

  void EventManager::removeTimer(const EventTimer* timer) {
    auto it = std::find(timers_.begin(), timers_.end(), timer);
    if (it != timers_.end())
      timers_.erase(it);
  }

  void EventManager::addCallback(std::function<void()> callback) {
    callbacks_.push_back(std::move(callback));