Add dataview context menu event definitions

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50745 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/dataviewevent.tex

@@ -61,6 +61,13 @@ the event was emitted or NULL.
 Returns the wxDataViewModel associated with the event.
 
 
+\membersection{wxDataViewEvent::GetPosition}\label{wxdatavieweventgetposition}
+
+\constfunc{wxPoint}{GetPosition}{\void}
+
+Returns a the position of a context menu event in screen coordinates.
+
+
 \membersection{wxDataViewEvent::GetValue}\label{wxdatavieweventgetvalue}
 
 \constfunc{const wxVariant\&}{GetValue}{\void}