+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Name: menu.tex
+%% Purpose: wxMenu documentation
+%% Author: wxWidgets Team
+%% Modified by:
+%% Created:
+%% RCS-ID: $Id$
+%% Copyright: (c) wxWidgets Team
+%% License: wxWindows license
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
\section{\class{wxMenu}}\label{wxmenu}
A menu is a popup (or pull down) list of items, one of which may be
selected before the menu goes away (clicking elsewhere dismisses the
-menu). Menus may be used to construct either menu bars or popup menus.
+menu). Menus may be used to construct either menu bars or popup menus.
A menu item has an integer ID associated with it which can be used to
-identify the selection, or to change the menu item in some way.
+identify the selection, or to change the menu item in some way. A menu item
+with a special identifier $-1$ is a separator item and doesn't have an
+associated command but just makes a separator line appear in the menu.
+
+{\bf NB:} Please note that {\it wxID\_ABOUT} and {\it wxID\_EXIT} are
+predefined by wxWidgets and have a special meaning since entries
+using these IDs will be taken out of the normal menus under MacOS X
+and will be inserted into the system menu (following the appropriate
+MacOS X interface guideline). On PalmOS {\it wxID\_EXIT} is disabled according
+to Palm OS Companion guidelines.
+
+Menu items may be either normal items, check items or radio items. Normal items
+don't have any special properties while the check items have a boolean flag
+associated to them and they show a checkmark in the menu when the flag is set.
+wxWidgets automatically toggles the flag value when the item is clicked and its
+value may be retrieved using either \helpref{IsChecked}{wxmenuischecked} method
+of wxMenu or wxMenuBar itself or by using
+\helpref{wxEvent::IsChecked}{wxcommandeventischecked} when you get the menu
+notification for the item in question.
+
+The radio items are similar to the check items except that all the other items
+in the same radio group are unchecked when a radio item is checked. The radio
+group is formed by a contiguous range of radio items, i.e. it starts at the
+first item of this kind and ends with the first item of a different kind (or
+the end of the menu). Notice that because the radio groups are defined in terms
+of the item positions inserting or removing the items in the menu containing
+the radio items risks to not work correctly. Finally note that radio items
+are not supported under Motif.
+
+\wxheading{Allocation strategy}
+
+All menus except the popup ones must be created on the heap. All menus
+attached to a menubar or to another menu will be deleted by their parent when
+it is deleted. As the frame menubar is deleted by the frame itself, it means
+that normally all menus used are deleted automatically.
\wxheading{Derived from}
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxMenu::wxMenu}\label{wxmenuconstr}
+\membersection{wxMenu::wxMenu}\label{wxmenuctor}
\func{}{wxMenu}{\param{const wxString\& }{title = ""}, \param{long}{ style = 0}}
\docparam{title}{A title for the popup menu: the empty string denotes no title.}
-\docparam{style}{If set to {\tt wxMENU\_TEAROFF}, the menu will be detachable.}
+\docparam{style}{If set to {\tt wxMENU\_TEAROFF}, the menu will be detachable (wxGTK only).}
\func{}{wxMenu}{\param{long}{ style}}
\wxheading{Parameters}
-\docparam{style}{If set to {\tt wxMENU\_TEAROFF}, the menu will be detachable.}
+\docparam{style}{If set to {\tt wxMENU\_TEAROFF}, the menu will be detachable (wxGTK only).}
-\membersection{wxMenu::\destruct{wxMenu}}
+\membersection{wxMenu::\destruct{wxMenu}}\label{wxmenudtor}
\func{}{\destruct{wxMenu}}{\void}
\membersection{wxMenu::Append}\label{wxmenuappend}
-\func{void}{Append}{\param{int}{ id}, \param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""},\rtfsp
-\param{const bool}{ checkable = FALSE}}
+\func{wxMenuItem*}{Append}{\param{int}{ id}, \param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""},\rtfsp
+\param{wxItemKind}{ kind = wxITEM\_NORMAL}}
Adds a string item to the end of the menu.
-\func{void}{Append}{\param{int}{ id}, \param{const wxString\& }{ item}, \param{wxMenu *}{subMenu},\rtfsp
+\func{wxMenuItem*}{Append}{\param{int}{ id}, \param{const wxString\& }{ item}, \param{wxMenu *}{subMenu},\rtfsp
\param{const wxString\& }{helpString = ""}}
-Adds a pull-right submenu to the end of the menu.
+Adds a pull-right submenu to the end of the menu. Append the submenu to the parent
+menu {\it after} you have added your menu items, or accelerators may not be
+registered properly.
-\func{void}{Append}{\param{wxMenuItem*}{ menuItem}}
+\func{wxMenuItem*}{Append}{\param{wxMenuItem*}{ menuItem}}
Adds a menu item object. This is the most generic variant of Append() method
because it may be used for both items (including separators) and submenus and
\docparam{menu}{Pull-right submenu.}
-\docparam{checkable}{If TRUE, this item is checkable.}
+\docparam{kind}{May be {\tt wxITEM\_SEPARATOR}, {\tt wxITEM\_NORMAL},
+{\tt wxITEM\_CHECK} or {\tt wxITEM\_RADIO}}
\docparam{helpString}{An optional help string associated with the item.
-By default, \helpref{wxFrame::OnMenuHighlight}{wxframeonmenuhighlight} displays
+By default, the handler for the wxEVT\_MENU\_HIGHLIGHT event displays
this string in the status line.}
\docparam{menuItem}{A menuitem object. It will be owned by the wxMenu object after this function
This command can be used after the menu has been shown, as well as on initial
creation of a menu or menubar.
+The {\it item} string for the normal menu items (not submenus or separators)
+may include the accelerator which can be used to activate the menu item
+from keyboard. The accelerator string follows the item label and is separated
+from it by a {\tt TAB} character ({\tt '$\backslash$t'}). Its general syntax is
+any combination of {\tt "CTRL"}, {\tt "ALT"} and {\tt "SHIFT"} strings (case
+doesn't matter) separated by either {\tt '-'} or {\tt '+'} characters and
+followed by the accelerator itself. The accelerator may be any alphanumeric
+character, any function key (from {\tt F1} to {\tt F12}) or one of the special
+characters listed in the table below (again, case doesn't matter):
+
+\begin{twocollist}\itemsep=0pt
+\twocolitem{{\tt DEL} or {\tt DELETE}}{Delete key}
+\twocolitem{{\tt INS} or {\tt INSERT}}{Insert key}
+\twocolitem{{\tt ENTER} or {\tt RETURN}}{Enter key}
+\twocolitem{{\tt PGUP}}{PageUp key}
+\twocolitem{{\tt PGDN}}{PageDown key}
+\twocolitem{{\tt LEFT}}{Left cursor arrow key}
+\twocolitem{{\tt RIGHT}}{Right cursor arrow key}
+\twocolitem{{\tt UP}}{Up cursor arrow key}
+\twocolitem{{\tt DOWN}}{Down cursor arrow key}
+\twocolitem{{\tt HOME}}{Home key}
+\twocolitem{{\tt END}}{End key}
+\twocolitem{{\tt SPACE}}{Space}
+\twocolitem{{\tt TAB}}{Tab key}
+\twocolitem{{\tt ESC} or {\tt ESCAPE}}{Escape key (Windows only)}
+\end{twocollist}
+
\wxheading{See also}
\helpref{wxMenu::AppendSeparator}{wxmenuappendseparator},\rtfsp
+\helpref{wxMenu::AppendCheckItem}{wxmenuappendcheckitem},\rtfsp
+\helpref{wxMenu::AppendRadioItem}{wxmenuappendradioitem},\rtfsp
\helpref{wxMenu::Insert}{wxmenuinsert},\rtfsp
\helpref{wxMenu::SetLabel}{wxmenusetlabel}, \helpref{wxMenu::GetHelpString}{wxmenugethelpstring},\rtfsp
\helpref{wxMenu::SetHelpString}{wxmenusethelpstring}, \helpref{wxMenuItem}{wxmenuitem}
\pythonnote{In place of a single overloaded method name, wxPython
-implements the following methods:\par
+implements the following methods:
+
\indented{2cm}{\begin{twocollist}
-\twocolitem{{\bf Append(id, string, helpStr="", checkable=FALSE)}}{}
+\twocolitem{{\bf Append(id, string, helpStr="", checkable=false)}}{}
\twocolitem{{\bf AppendMenu(id, string, aMenu, helpStr="")}}{}
\twocolitem{{\bf AppendItem(aMenuItem)}}{}
\end{twocollist}}
}
+\membersection{wxMenu::AppendCheckItem}\label{wxmenuappendcheckitem}
+
+\func{wxMenuItem*}{AppendCheckItem}{\param{int}{ id},\rtfsp
+\param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""}}
+
+Adds a checkable item to the end of the menu.
+
+\wxheading{See also}
+
+\helpref{wxMenu::Append}{wxmenuappend},\rtfsp
+\helpref{wxMenu::InsertCheckItem}{wxmenuinsertcheckitem}
+
+\membersection{wxMenu::AppendRadioItem}\label{wxmenuappendradioitem}
+
+\func{wxMenuItem*}{AppendRadioItem}{\param{int}{ id},\rtfsp
+\param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""}}
+
+Adds a radio item to the end of the menu. All consequent radio items form a
+group and when an item in the group is checked, all the others are
+automatically unchecked.
+
+{\bf NB:} Currently only implemented under Windows and GTK, use
+{\tt\#if wxHAS\_RADIO\_MENU\_ITEMS} to test for availability of this feature.
+
+\wxheading{See also}
+
+\helpref{wxMenu::Append}{wxmenuappend},\rtfsp
+\helpref{wxMenu::InsertRadioItem}{wxmenuinsertradioitem}
+
\membersection{wxMenu::AppendSeparator}\label{wxmenuappendseparator}
-\func{void}{AppendSeparator}{\void}
+\func{wxMenuItem*}{AppendSeparator}{\void}
Adds a separator to the end of the menu.
\wxheading{See also}
-\helpref{wxMenu::Append}{wxmenuappend}
+\helpref{wxMenu::Append}{wxmenuappend},\rtfsp
+\helpref{wxMenu::InsertSeparator}{wxmenuinsertseparator}
\membersection{wxMenu::Break}\label{wxmenubreak}
\docparam{id}{The menu item identifier.}
-\docparam{check}{If TRUE, the item will be checked, otherwise it will be unchecked.}
+\docparam{check}{If true, the item will be checked, otherwise it will be unchecked.}
\wxheading{See also}
\docparam{id}{The menu item identifier.}
-\docparam{enable}{TRUE to enable the menu item, FALSE to disable it.}
+\docparam{enable}{true to enable the menu item, false to disable it.}
\wxheading{See also}
Finds the menu item object associated with the given menu item identifier and,
optionally, the (sub)menu it belongs to.
+\perlnote{In wxPerl this method takes just the {\tt id} parameter;
+in scalar context it returns the associated {\tt Wx::MenuItem}, in list
+context it returns a 2-element list {\tt ( item, submenu )}}
+
\wxheading{Parameters}
\docparam{itemString}{Menu item string to find.}
\docparam{id}{Menu item identifier.}
-\docparam{menu}{If the pointer is not NULL, it will be filled with the items
+\docparam{menu}{If the pointer is not NULL, it will be filled with the item's
parent menu (if the item was found)}
\wxheading{Return value}
-First form: menu item identifier, or wxNOT\_FOUND if none is found.
+First form: menu item identifier, or {\tt wxNOT\_FOUND} if none is found.
Second form: returns the menu item object, or NULL if it is not found.
\pythonnote{The name of this method in wxPython is {\tt FindItemById}
and it does not support the second parameter.}
+\membersection{wxMenu::FindItemByPosition}\label{wxmenufinditembyposition}
+
+\constfunc{wxMenuItem*}{FindItemByPosition}{\param{size\_t }{position}}
+
+Returns the wxMenuItem given a position in the menu.
+
\membersection{wxMenu::GetHelpString}\label{wxmenugethelpstring}
\constfunc{wxString}{GetHelpString}{\param{int}{ id}}
\wxheading{Remarks}
-This is relevant only to popup menus.
+This is relevant only to popup menus, use
+\helpref{wxMenuBar::GetLabelTop}{wxmenubargetlabeltop} for the menus in the
+menubar.
\wxheading{See also}
\membersection{wxMenu::Insert}\label{wxmenuinsert}
-\func{bool}{Insert}{\param{size\_t }{pos}, \param{wxMenuItem *}{item}}
+\func{wxMenuItem*}{Insert}{\param{size\_t }{pos}, \param{wxMenuItem *}{item}}
+
+\func{wxMenuItem*}{Insert}{\param{size\_t }{pos}, \param{int}{ id},\rtfsp
+\param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""},\rtfsp
+\param{wxItemKind}{ kind = wxITEM\_NORMAL}}
Inserts the given {\it item} before the position {\it pos}. Inserting the item
-at the position \helpref{GetMenuItemCount}{wxmenugetmenuitemcount} is the same
+at position \helpref{GetMenuItemCount}{wxmenugetmenuitemcount} is the same
as appending it.
\wxheading{See also}
-\helpref{wxMenu::Append}{wxmenuappend}
+\helpref{wxMenu::Append}{wxmenuappend},\rtfsp
+\helpref{wxMenu::Prepend}{wxmenuprepend}
+
+\membersection{wxMenu::InsertCheckItem}\label{wxmenuinsertcheckitem}
+
+\func{wxMenuItem*}{InsertCheckItem}{\param{size\_t }{pos}, \param{int}{ id},\rtfsp
+\param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""}}
+
+Inserts a checkable item at the given position.
+
+\wxheading{See also}
+
+\helpref{wxMenu::Insert}{wxmenuinsert},\rtfsp
+\helpref{wxMenu::AppendCheckItem}{wxmenuappendcheckitem}
+
+\membersection{wxMenu::InsertRadioItem}\label{wxmenuinsertradioitem}
+
+\func{wxMenuItem*}{InsertRadioItem}{\param{size\_t }{pos}, \param{int}{ id},\rtfsp
+\param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""}}
+
+Inserts a radio item at the given position.
+
+\wxheading{See also}
+
+\helpref{wxMenu::Insert}{wxmenuinsert},\rtfsp
+\helpref{wxMenu::AppendRadioItem}{wxmenuappendradioitem}
+
+\membersection{wxMenu::InsertSeparator}\label{wxmenuinsertseparator}
+
+\func{wxMenuItem*}{InsertSeparator}{\param{size\_t }{pos}}
+
+Inserts a separator at the given position.
+
+\wxheading{See also}
+
+\helpref{wxMenu::Insert}{wxmenuinsert},\rtfsp
+\helpref{wxMenu::AppendSeparator}{wxmenuappendseparator}
\membersection{wxMenu::IsChecked}\label{wxmenuischecked}
\wxheading{Return value}
-TRUE if the menu item is checked, FALSE otherwise.
+true if the menu item is checked, false otherwise.
\wxheading{See also}
\wxheading{Return value}
-TRUE if the menu item is enabled, FALSE otherwise.
+true if the menu item is enabled, false otherwise.
\wxheading{See also}
\helpref{wxMenu::Enable}{wxmenuenable}
+\membersection{wxMenu::Prepend}\label{wxmenuprepend}
+
+\func{wxMenuItem*}{Prepend}{\param{wxMenuItem *}{item}}
+
+\func{wxMenuItem*}{Prepend}{\param{int}{ id},\rtfsp
+\param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""},\rtfsp
+\param{wxItemKind}{ kind = wxITEM\_NORMAL}}
+
+Inserts the given {\it item} at position $0$, i.e. before all the other
+existing items.
+
+\wxheading{See also}
+
+\helpref{wxMenu::Append}{wxmenuappend},\rtfsp
+\helpref{wxMenu::Insert}{wxmenuinsert}
+
+\membersection{wxMenu::PrependCheckItem}\label{wxmenuprependcheckitem}
+
+\func{wxMenuItem*}{PrependCheckItem}{\param{int}{ id},\rtfsp
+\param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""}}
+
+Inserts a checkable item at position $0$.
+
+\wxheading{See also}
+
+\helpref{wxMenu::Prepend}{wxmenuprepend},\rtfsp
+\helpref{wxMenu::AppendCheckItem}{wxmenuappendcheckitem}
+
+\membersection{wxMenu::PrependRadioItem}\label{wxmenuprependradioitem}
+
+\func{wxMenuItem*}{PrependRadioItem}{\param{int}{ id},\rtfsp
+\param{const wxString\& }{ item}, \param{const wxString\& }{helpString = ""}}
+
+Inserts a radio item at position $0$.
+
+\wxheading{See also}
+
+\helpref{wxMenu::Prepend}{wxmenuprepend},\rtfsp
+\helpref{wxMenu::AppendRadioItem}{wxmenuappendradioitem}
+
+\membersection{wxMenu::PrependSeparator}\label{wxmenuprependseparator}
+
+\func{wxMenuItem*}{PrependSeparator}{\void}
+
+Inserts a separator at position $0$.
+
+\wxheading{See also}
+
+\helpref{wxMenu::Prepend}{wxmenuprepend},\rtfsp
+\helpref{wxMenu::AppendSeparator}{wxmenuappendseparator}
+
\membersection{wxMenu::Remove}\label{wxmenuremove}
\func{wxMenuItem *}{Remove}{\param{int }{id}}
\wxheading{Remarks}
-This is relevant only to popup menus.
+This is relevant only to popup menus, use
+\helpref{wxMenuBar::SetLabelTop}{wxmenubarsetlabeltop} for the menus in the
+menubar.
\wxheading{See also}
-\helpref{wxMenu::SetTitle}{wxmenusettitle}
+\helpref{wxMenu::GetTitle}{wxmenugettitle}
\membersection{wxMenu::UpdateUI}\label{wxmenuupdateui}
\wxheading{Derived from}
+\helpref{wxWindow}{wxwindow}\\
\helpref{wxEvtHandler}{wxevthandler}\\
\helpref{wxObject}{wxobject}
as your EVT\_MENU entries, events from the toolbar will also be processed by your
EVT\_MENU event handlers.
-Note that menu commands (and UI update events for menus) are first sent to
-the focus window within the frame. If no window within the frame has the focus,
-then the events are sent directly to the frame. This allows command and UI update
-handling to be processed by specific windows and controls, and not necessarily
-by the application frame.
+{\bf Tip:} under Windows, if you discover that menu shortcuts (for example, Alt-F to show the file menu)
+are not working, check any EVT\_CHAR events you are handling in child windows.
+If you are not calling {\tt event.Skip()} for events that you don't process in these event handlers,
+menu shortcuts may cease to work.
\wxheading{See also}
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxMenuBar::wxMenuBar}\label{wxmenubarconstr}
+\membersection{wxMenuBar::wxMenuBar}\label{wxmenubarctor}
-\func{void}{wxMenuBar}{\param{long }{style = 0}}
+\func{}{wxMenuBar}{\param{long }{style = 0}}
Default constructor.
-\func{void}{wxMenuBar}{\param{int}{ n}, \param{wxMenu*}{ menus[]}, \param{const wxString }{titles[]}}
+\func{}{wxMenuBar}{\param{size\_t}{ n}, \param{wxMenu*}{ menus[]}, \param{const wxString }{titles[]}, \param{long }{style = 0}}
Construct a menu bar from arrays of menus and titles.
\docparam{style}{If {\tt wxMB\_DOCKABLE} the menu bar can be detached (wxGTK only).}
\pythonnote{Only the default constructor is supported in wxPython.
-Use wxMenuBar.Append instead.}
+Use \helpref{wxMenuBar::Append}{wxmenubarappend} instead.}
+
+\perlnote{wxPerl only supports the first constructor:
+use \helpref{wxMenuBar::Append}{wxmenubarappend} instead.}
-\membersection{wxMenuBar::\destruct{wxMenuBar}}
+\membersection{wxMenuBar::\destruct{wxMenuBar}}\label{wxmenubardtor}
\func{void}{\destruct{wxMenuBar}}{\void}
\wxheading{Return value}
-TRUE on success, FALSE if an error occured.
+true on success, false if an error occurred.
\wxheading{See also}
\docparam{id}{The menu item identifier.}
-\docparam{check}{If TRUE, checks the menu item, otherwise the item is unchecked.}
+\docparam{check}{If true, checks the menu item, otherwise the item is unchecked.}
\wxheading{Remarks}
\docparam{id}{The menu item identifier.}
-\docparam{enable}{TRUE to enable the item, FALSE to disable it.}
+\docparam{enable}{true to enable the item, false to disable it.}
\wxheading{Remarks}
\docparam{pos}{The position of the menu, starting from zero.}
-\docparam{enable}{TRUE to enable the menu, FALSE to disable it.}
+\docparam{enable}{true to enable the menu, false to disable it.}
\wxheading{Remarks}
\constfunc{int}{FindMenu}{\param{const wxString\& }{title}}
-Returns the index of the menu with the given {\it title} or wxNOT\_FOUND if no
+Returns the index of the menu with the given {\it title} or {\tt wxNOT\_FOUND} if no
such menu exists in this menubar. The {\it title} parameter may specify either
the menu title (with accelerator characters, i.e. {\tt "\&File"}) or just the
menu label ({\tt "File"}) indifferently.
\wxheading{Return value}
-The menu item identifier, or wxNOT\_FOUND if none was found.
+The menu item identifier, or {\tt wxNOT\_FOUND} if none was found.
\wxheading{Remarks}
\constfunc{wxString}{GetHelpString}{\param{int}{ id}}
-Gets the help string associated with the menu item identifer.
+Gets the help string associated with the menu item identifier.
\wxheading{Parameters}
\constfunc{wxString}{GetLabelTop}{\param{int}{ pos}}
-Returns the label of a top-level menu.
+Returns the label of a top-level menu. Note that the returned string does not
+include the accelerator characters which could have been specified in the menu
+title string during its construction.
\wxheading{Parameters}
\wxheading{Return value}
-TRUE on success, FALSE if an error occured.
+true on success, false if an error occurred.
\wxheading{See also}
\wxheading{Return value}
-TRUE if the item was found and is checked, FALSE otherwise.
+true if the item was found and is checked, false otherwise.
\membersection{wxMenuBar::IsEnabled}\label{wxmenubarisenabled}
\wxheading{Return value}
-TRUE if the item was found and is enabled, FALSE otherwise.
+true if the item was found and is enabled, false otherwise.
\membersection{wxMenuBar::Refresh}\label{wxmenubarrefresh}
\func{wxMenu *}{Remove}{\param{size\_t }{pos}}
Removes the menu from the menu bar and returns the menu object - the caller is
-reposnbile for deleting it. This function may be used together with
+responsible for deleting it. This function may be used together with
\helpref{wxMenuBar::Insert}{wxmenubarinsert} to change the menubar
dynamically.
\wxheading{Return value}
-The menu which was previously at the position {\it pos}. The caller is
+The menu which was previously at position {\it pos}. The caller is
responsible for deleting it.
\wxheading{See also}
projects / wxWidgets.git / blobdiff