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 NULL on error. top_row and item_index return ERR (the general curses error value) on error.
set_current_item and set_top_row return one of the following:
