|
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | NOTES | PORTABILITY | AUTHORS | COLOPHON |
menu_hook(3X) menu_hook(3X)
menu_hook - set hooks for automatic invocation by applications
#include <menu.h>
int set_item_init(MENU *menu, Menu_Hook func);
Menu_Hook item_init(const MENU *menu);
int set_item_term(MENU *menu, Menu_Hook func);
Menu_Hook item_term(const MENU *menu);
int set_menu_init(MENU *menu, Menu_Hook func);
Menu_Hook menu_init(const MENU *menu);
int set_menu_term(MENU *menu, Menu_Hook func);
Menu_Hook menu_term(const MENU *menu);
These functions make it possible to set hook functions to be called
at various points in the automatic processing of input event codes by
menu_driver.
The function set_item_init sets a hook to be called at menu-post time
and each time the selected item changes (after the change).
item_init returns the current item init hook, if any (NULL if there
is no such hook).
The function set_item_term sets a hook to be called at menu-unpost
time and each time the selected item changes (before the change).
item_term returns the current item term hook, if any (NULL if there
is no such hook).
The function set_menu_init sets a hook to be called at menu-post time
and just after the top row on the menu changes once it is posted.
menu_init returns the current menu init hook, if any (NULL if there
is no such hook).
The function set_menu_term sets a hook to be called at menu-unpost
time and just before the top row on the menu changes once it is
posted. menu_term returns the current menu term hook, if any (NULL
if there is no such hook).
Routines that return pointers return NULL on error. Other routines
return one of the following:
E_OK The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno).
curses(3X), menu(3X).
The header file <menu.h> automatically includes the header file
<curses.h>.
These routines emulate the System V menu library. They were not
supported on Version 7 or BSD versions.
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
S. Raymond.
This page is part of the ncurses (new curses) project. Information
about the project can be found at
⟨https://www.gnu.org/software/ncurses/ncurses.html⟩. If you have a
bug report for this manual page, send it to
bug-ncurses-request@gnu.org. This page was obtained from the
project's upstream Git mirror of the CVS repository
⟨git://ncurses.scripts.mit.edu/ncurses.git⟩ on 2017-07-05. If you
discover any rendering problems in this HTML version of the page, or
you believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
menu_hook(3X)