Method createChild

forms/control.h:165–170

	bool isPointInsideControlBounds(Event *e, sp<Control> c) const;

	template <typename T, typename... Args> sp<T> createChild(Args &&...args)
	{
		sp<T> newControl = mksp<T>(std::forward<Args>(args)...);
		newControl->setParent(shared_from_this());
		return newControl;
	}

	void addCallback(FormEventType event, std::function<void(FormsEvent *e)> callback);