+wxSize is used throughout wxWindows as well as wxPoint which, although almost
+equivalent to wxSize, has a different meaning: wxPoint represents a position
+while wxSize - the size.
+
+\pythonnote{wxPython defines aliases for the \tt{x} and \tt{y} members
+named \tt{width} and \tt{height} since it makes much more sense for
+sizes.
+}
+
+\wxheading{Derived from}