#include <menu.h>
int set_current_item(MENU *menu, ITEM *item);
ITEM *current_item(MENU *menu);
int set_top_row(MENU *menu, int row);
int top_row(MENU *menu);
int item_index(ITEM *item);
Unsafe
set_top_row() sets the top row of menu to row. The left-most item on the new top row becomes the current item. top_row() returns the number of the menu row currently displayed at the top of menu.
item_index() returns the index to the item in the item pointer array. The value of this index ranges from 0 through N-1, where N is the total number of items connected to the menu.
top_row() and index_item() return -1 on error.
set_current_item()
and set_top_row() return one of the following:
E_OK The routine returned successfully. E_SYSTEM_ERROR System error. E_BAD_ARGUMENT An incorrect argument was passed to the routine. E_BAD_STATE The routine was called from an initialization or termination function. E_NOT_CONNECTED No items are connected to the menu.
The header <menu.h> automatically includes the headers <eti.h> and <curses.h>.