man/man3curses/menu_item_current.3curses

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 MENU_ITEM_CURRENT 3CURSES "April 9, 2016"
 NAME
menu_item_current, set_current_item, current_item, set_top_row, top_row,
item_index - set and get current menus items
 SYNOPSIS

cc [ flag... ] file... -lmenu  -lcurses  [ library... ]
#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);


 DESCRIPTION

The current item of a menu is the item where the cursor is currently
positioned. set_current_item() sets the current item of menu to
item. current_item() returns a pointer to the current item in
menu.

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.
 RETURN VALUES

current_item() returns NULL on error.

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.


 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
MT-Level Unsafe


 SEE ALSO

curses(3CURSES), menus(3CURSES), attributes(5)
 NOTES

The header <menu.h> automatically includes the headers <eti.h> and
<curses.h>.