Update Documentation - Low Level Chapter - Add tip : We can use NULL instead of NULLPointer().
@@ -143,6 +143,8 @@ Also the function accept NULL pointers, so we can pass them using the NULLPointe
.. note:: The previous code doesn't work alone, you need to learn how to use RingSDL first.
+.. tip:: We can pass NULL as parameter instead of using NULLPointer()
+
.. index::
pair: Low Level Functions; object2pointer()
