menuevt.tex

来自「Wxpython Implemented on Windows CE, Sou」· TEX 代码 · 共 79 行

\section{\class{wxMenuEvent}}\label{wxmenuevent}

This class is used for a variety of menu-related events. Note that
these do not include menu command events, which are
handled using \helpref{wxCommandEvent}{wxcommandevent} objects.

The default handler for wxEVT\_MENU\_HIGHLIGHT displays help
text in the first field of the status bar.

\wxheading{Derived from}

\helpref{wxEvent}{wxevent}\\
\helpref{wxObject}{wxobject}

\wxheading{Include files}

<wx/event.h>

\wxheading{Event table macros}

To process a menu event, use these event handler macros to direct input to member
functions that take a wxMenuEvent argument. They can only be processed by
a menubar's frame.

\twocolwidtha{7cm}
\begin{twocollist}\itemsep=0pt
\twocolitem{{\bf EVT\_MENU\_OPEN(func)}}{A menu is about to be opened. On Windows,
this is only sent once for each navigation of the menubar (up until all menus have closed).}
\twocolitem{{\bf EVT\_MENU\_CLOSE(func)}}{A menu has been just closed.}
\twocolitem{{\bf EVT\_MENU\_HIGHLIGHT(id, func)}}{The menu item with the
specified id has been highlighted: used to show help prompts in the status bar
by \helpref{wxFrame}{wxframe}}
\twocolitem{{\bf EVT\_MENU\_HIGHLIGHT\_ALL(func)}}{A menu item has been
highlighted, i.e. the currently selected menu item has changed.}
\end{twocollist}

\wxheading{See also}

\helpref{Command events}{wxcommandevent},\\
\helpref{Event handling overview}{eventhandlingoverview}

\latexignore{\rtfignore{\wxheading{Members}}}


\membersection{wxMenuEvent::wxMenuEvent}\label{wxmenueventctor}

\func{}{wxMenuEvent}{\param{WXTYPE }{id = 0}, \param{int }{id = 0}, \param{wxMenu* }{menu = NULL}}

Constructor.


\membersection{wxMenuEvent::GetMenu}\label{wxmenueventgetmenu}

\constfunc{wxMenu *}{GetMenu}{\void}

Returns the menu which is being opened or closed. This method should only be
used with the \texttt{OPEN} and \texttt{CLOSE} events and even for them the
returned pointer may be \NULL in some ports.


\membersection{wxMenuEvent::GetMenuId}\label{wxmenueventgetmenuid}

\constfunc{int}{GetMenuId}{\void}

Returns the menu identifier associated with the event. This method should be
only used with the {\tt HIGHLIGHT} events.


\membersection{wxMenuEvent::IsPopup}\label{wxmenueventispopup}

\constfunc{bool}{IsPopup}{\void}

Returns {\tt true} if the menu which is being opened or closed is a popup menu, 
{\tt false} if it is a normal one.

This method should only be used with the {\tt OPEN} and {\tt CLOSE} events.