Elaborated on some of the TouchData documenation

Change-Id: I2dc4dd464b4d0567f15d4ecbacac768de0ff2474

diff --git a/dali/public-api/events/touch-data.h b/dali/public-api/events/touch-data.h
index 9eedd3b..100d068 100644 (file)
--- a/dali/public-api/events/touch-data.h
+++ b/dali/public-api/events/touch-data.h
@@ -51,7 +51,11 @@ struct Vector2;
  *
  * The first point is the primary point that's used for hit-testing.
  * @SINCE_1_1.37
- * @note Should not use this in a TouchData container as it is just a handle and the internal object can change.
+ * @note As this is a handle to an internal object, it should not be copied (or used in a container) as all that will do is copy the handle to the same object.
+ * The internal object can change which may not be what an application writer expects.
+ * If data does need to be stored in the application, then only the required data should be saved (retrieved using the methods of this class).
+ *
+ * Should not use this in a TouchData container as it is just a handle and the internal object can change.
  */
 class DALI_IMPORT_API TouchData : public BaseHandle
 {