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$Id: menu_items.3x,v 1.17 2020/10/24 09:00:06 tom Exp $
ITEM **menu_items(const MENU *menu);
int item_count(const MENU *menu);
The function menu_items returns the item array of the given menu.
The function item_count returns the count of items in menu.
The function item_count returns ERR (the general curses error return value) if its menu parameter is NULL.
The function set_menu_items returns one of the following codes on error:
5 E_OK The routine succeeded.
5 E_BAD_ARGUMENT Routine detected an incorrect or out-of-range argument.
5 E_NOT_CONNECTED No items are connected to the menu.
5 E_POSTED The menu is already posted.
5 E_SYSTEM_ERROR System error occurred (see errno(3)). .
The SVr4 menu library documentation specifies the item_count error value as -1 (which is the value of ERR).