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Man Pages


Manual Reference Pages  -  MITEM_CURRENT (3)

NAME

mitem_current - set and get current_menu_item

CONTENTS

Synopsis
Description
Return Value
See Also
Notes
Portability
Authors

SYNOPSIS

#include <menu.h>
int set_current_item(MENU *menu, const ITEM *item);
ITEM *current_item(const MENU *menu);
int set_top_row(MENU *menu, int row);
int top_row(const MENU *menu);
int item_index(const ITEM *item);

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).

SEE ALSO

curses(3X), menu(3X).

NOTES

The header file <menu.h> automatically includes the header file <curses.h>.

PORTABILITY

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).

AUTHORS

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