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menu_current(3MENU) | menu_current(3MENU) |
NAME¶
mitem_current - set and get current_menu_itemSYNOPSIS¶
#include <menu.h>DESCRIPTION¶
The function set_current_item sets the current item (the item on which the menu cursor is positioned). current_item returns a pointer to the current item in the given menu. The function set_top_row sets the top row of the menu to show the given row (the top row is initially 0, and is reset to this value whenever the O_ROWMAJOR option is toggled). The item leftmost on the given row becomes current. The function top_row returns the number of the top menu row being displayed. The function item_index returns the (zero-origin) index of item in the menu's item pointer list.RETURN VALUE¶
current_item returns a pointer (which may be NULL). It does not set errno. top_row and item_index return ERR (the general curses error value) if their menu parameter is NULL. set_current_item and set_top_row return one of the following:- E_OK
- The routine succeeded.
- E_BAD_ARGUMENT
- Routine detected an incorrect or out-of-range argument.
- E_BAD_STATE
- Routine was called from an initialization or termination function.
- E_NOT_CONNECTED
- No items are connected to the menu.
- E_SYSTEM_ERROR
- System error occurred (see errno).