menu_hook(S)

menu_hook: set_item_init, item_init, set_item_term, item_term, set_menu_init, menu_init, set_menu_term, menu_term -- assign application-specific routines for automatic invocation by menus

Syntax

cc ... -lmenu -lcurses

#include <menu.h>

int set_item_init(MENU *menu, void (*func)(MENU *));
void (*)(MENU *) item_init(MENU *menu);
int set_item_term(MENU *menu, void (*func)(MENU *));
void (*)(MENU *) item_term(MENU *menu);
int set_menu_init(MENU *menu, void (*func)(MENU *));
void (*)(MENU *) menu_init(MENU *menu);
int set_menu_term(MENU *menu, void (*func)(MENU *));
void (*)(MENU *) menu_term(MENU *menu);

Description

set_item_init- set menu-item initiation function

item_init- return menu-item initiation function

set_item_term- set menu-item termination function

item_term- return menu-item termination function

set_menu_init- set menu initiation function

menu_init- return menu initiation function

set_menu_term- set menu termination function

menu_term- return menu termination function

set_item_init(S) assigns the application-defined function to be called when the menu is posted and just after the current item changes. item_init(S) returns a pointer to the item initialization routine, if any, called when the menu is posted and just after the current item changes.

set_item_term(S) assigns an application-defined function to be called when the menu is unposted and just before the current item changes. item_term(S) returns a pointer to the termination function, if any, called when the menu is unposted and just before the current item changes.

set_menu_init(S) assigns an application-defined function to be called when the menu is posted and just after the top row changes on a posted menu. menu_init(S) returns a pointer to the menu initialization routine, if any, called when the menu is posted and just after the top row changes on a posted menu.

set_menu_term(S) assigns an application-defined function to be called when the menu is unposted and just before the top row changes on a posted menu. menu_term(S) returns a pointer to the menu termination routine, if any, called when the menu is unposted and just before the top row changes on a posted menu.

Return values

Routines that return pointers always return NULL on error. Routines that return an integer return one of the following:

E_OK - The routine returned successfully.

E_SYSTEM_ERROR - System error.

Warning

The header file menu.h automatically includes the header files eti.h and curses.h.

Files

/usr/lib/libmenu.a: the library

Standards conformance

set_item_init(S), item_init(S), set_item_term(S), item_term(S), set_menu_init(S), menu_init(S), set_menu_term(S), and menu_term(S) are not part of any currently supported standard; they were developed by UNIX System Laboratories, Inc. and are maintained by The SCO Group.

`E_OK`	-	The routine returned successfully.
`E_SYSTEM_ERROR`	-	System error.