mitem_current - set and get current_menu_item

       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S. Raymond.

       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.

mitem_current - set and get current_menu_item

       These routines emulate the System V menu library.  They were not supported on Version 7 or BSD versions.

       The SVr4 menu library documentation specifies the top_row and index_item error value as -1 (which is  the
       value of ERR).

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(3)).

ncurses(3NCURSES), menu(3MENU)

ncurses 6.5                                        2024-12-28                                menu_current(3MENU)

#include<menu.h>intset_current_item(MENU*menu,ITEM*item);ITEM*current_item(constMENU*menu);intset_top_row(MENU*menu,introw);inttop_row(constMENU*menu);intitem_index(constITEM*item);