+/**
+ * @brief Set whether the control should have a layout
+ * @param[in] control The Control to set the behaviour on
+ * @param[in] layoutingRequired true if the control should have a layout
+ */
+DALI_TOOLKIT_API void SetLayoutingRequired( Control control, bool layoutingRequired );
+
+/**
+ * @brief Check if the control has been set to require layouting
+ * @param[in] control The Control to query
+ * @return true if the control needs layouting
+ */
+DALI_TOOLKIT_API bool IsLayoutingRequired( Control control );
+
+/**
+ * @brief Visual Event signal type
+ */
+using VisualEventSignalType = Signal< void ( Control, Dali::Property::Index, Dali::Property::Index ) >;
+
+/**
+ * @brief This signal is emitted when a visual has an event to notify.
+ *
+ * A callback of the following type may be connected:
+ * @code
+ * void YourCallbackName( Control control, Dali::Property::Index visualIndex, Dali::Property::Index signalId );
+ * @endcode
+ * @return The signal to connect to
+ */
+DALI_TOOLKIT_API VisualEventSignalType& VisualEventSignal( Control control );
+