A pointer to the client data, or NULL if not present.
+\membersection{wxListBox::GetCount}\label{wxlistboxgetcount}
+
+\constfunc{int}{GetCount}{\void}
+
+Returns the number of items in the listbox.
+
\membersection{wxListBox::GetSelection}\label{wxlistboxgetselection}
\constfunc{int}{GetSelection}{\void}
\constfunc{int}{Number}{\void}
+{\bf Obsolescence note:} This method is obsolete and was replaced with
+\helpref{GetCount}{wxlistboxgetcount}, please use the new method in the new
+code. This method is only available if wxWindows was compiled with
+{\tt WXWIN\_COMPATIBILITY\_2\_2} defined and will disappear completely in
+future versions.
+
Returns the number of items in the listbox.
\membersection{wxListBox::Selected}\label{wxlistboxselected}