\begin{enumerate}\itemsep=0pt
\item Define a callback of type wxFunction, which you pass to the wxMenu constructor.
-The callback takes a reference to a window, and a reference to a \helpref{wxCommandEvent}{wxcommandevent}.
+The callback takes a reference to the menu, and a reference to a \helpref{wxCommandEvent}{wxcommandevent}.
\item Derive a new class from wxMenu and define event table entries using the EVT\_MENU macro.
\item Set a new event handler for wxMenu, using an object whose class has EVT\_MENU entries.
\item Provide EVT\_MENU handlers in the window which pops up the menu, or in an ancestor of
Destructor, destroying the menu.
+Note: under Motif, a popup menu must have a valid parent (the window
+it was last popped up on) when being destroyed. Therefore, make sure
+you delete or re-use the popup menu {\it before} destroying the
+parent window. Re-use in this context means popping up the menu on
+a different window from last time, which causes an implicit destruction
+and recreation of internal data structures.
+
\membersection{wxMenu::Append}\label{wxmenuappend}
\func{void}{Append}{\param{int}{ id}, \param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""},\rtfsp
\helpref{wxMenu::SetTitle}{wxmenusettitle}
+\membersection{wxMenu::UpdateUI}\label{wxmenuupdateui}
+
+\constfunc{void}{UpdateUI}{\param{wxEvtHandler*}{ source = NULL}}
+
+Sends events to {\it source} (or owning window if NULL) to update the
+menu UI. This is called just before the menu is popped up with \helpref{wxWindow::PopupMenu}{wxwindowpopupmenu}, but
+the application may call it at other times if required.
+
+\wxheading{See also}
+
+\helpref{wxUpdateUIEvent}{wxupdateuievent}
+
\section{\class{wxMenuBar}}\label{wxmenubar}
A menu bar is a series of menus accessible from the top of a frame.
\helpref{wxMenuBar::SetLabelTop}{wxmenubarsetlabeltop}
+\membersection{wxMenuBar::GetMenu}\label{wxmenubargetmenu}
+
+\constfunc{wxMenu*}{GetMenu}{\param{int}{ menuIndex}}
+
+Returns the menu at {\it menuIndex} (zero-based).
+
+\membersection{wxMenuBar::GetMenuCount}\label{wxmenubargetmenucount}
+
+\constfunc{int}{GetMenuCount}{\void}
+
+Returns the number of menus in this menubar.
+
\membersection{wxMenuBar::IsChecked}\label{wxmenubarischecked}
\constfunc{bool}{IsChecked}{\param{int}{ id}}