NAME

menu_sub, menu_win, scale_menu, set_menu_sub, set_menu_win — sub-menu handling

LIBRARY

Curses Menu Library (libmenu, -lmenu)

SYNOPSIS

#include <menu.h>

WINDOW *
menu_sub(MENU *menu);

WINDOW *
menu_win(MENU *menu);

int
scale_menu(MENU *menu, int *rows, int *cols);

int
set_menu_sub(MENU *menu, WINDOW *sub);

int
set_menu_win(MENU *menu, WINDOW *win);

DESCRIPTION

The menu_sub() function returns a pointer to the window that will be used to post a menu into, this pointer is set by the set_menu_sub() function. The menu_win() function returns a pointer to the window in which the menu subwindow will be created when the menu is posted, this pointer is set by the set_menu_win() function. The scale_menu() function calculates the minimum size a window needs to be to hold the items for a given menu, the parameters rows and cols are set to the required number of rows and columns respectively.

RETURN VALUES

The functions return one of the following error values:

E_OK

The function was successful.

E_SYSTEM_ERROR

There was a system error during the call.

E_BAD_ARGUMENT

One or more of the arguments passed to the function was incorrect.

E_POSTED

The menu is already posted.

E_CONNECTED

An item was already connected to a menu.

E_BAD_STATE

The function was called from within an initialization or termination routine.

E_NO_ROOM

The menu does not fit within the subwindow.

E_NOT_POSTED

The menu is not posted

E_UNKNOWN_COMMAND

The menu driver does not recognize the request passed to it.

E_NO_MATCH

The character search failed to find a match.

E_NOT_SELECTABLE

The item could not be selected.

E_NOT_CONNECTED

The item is not connected to a menu.

E_REQUEST_DENIED

The menu driver could not process the request.

SEE ALSO

curses(3), menus(3)

NOTES

The header <menu.h> automatically includes both <curses.h> and <eti.h>.