minix/lib/libmenu/menu_items.3
Thomas Cort b618a1ee0b Importing lib/libmenu
No Minix-specific changes needed.

Change-Id: Ifab9a44bd401aebf99ab019697937620d88d47de
2013-11-12 07:39:59 -05:00

90 lines
3 KiB
Groff

.\" $NetBSD: menu_items.3,v 1.10 2012/06/30 09:25:55 jdf Exp $
.\"
.\" Copyright (c) 1999
.\" Brett Lymn - blymn@baea.com.au, brett_lymn@yahoo.com.au
.\"
.\" This code is donated to The NetBSD Foundation by the author.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. The name of the Author may not be used to endorse or promote
.\" products derived from this software without specific prior written
.\" permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd September 10, 1999
.Dt MENU_ITEMS 3
.Os
.Sh NAME
.Nm item_count ,
.Nm menu_items ,
.Nm set_menu_items
.Nd attach items to menus or check correspondences
.Sh LIBRARY
.Lb libmenu
.Sh SYNOPSIS
.In menu.h
.Ft int
.Fn item_count "MENU *menu"
.Ft ITEM **
.Fn menu_items "MENU *menu"
.Ft int
.Fn set_menu_items "MENU *menu" "ITEM **items"
.Sh DESCRIPTION
The
.Fn item_count
.Fa menu
function returns the number of items currently attached to the menu
passed.
The
.Fn menu_items
function returns a pointer to an array of item pointers that represent
the menu items currently attached to the given menu.
Apart from using
.Fn new_menu
(see
.Xr menu_new 3 )
menu items may be attached to a menu by calling
.Fn set_menu_items
any items currently attached to the menu will be detached and the NULL
terminated array of new items will be attached to the menu.
.Sh RETURN VALUES
Any function returning a string pointer will return NULL if an error
occurs.
Functions returning an integer will return one of the following:
.Pp
.Bl -tag -width E_CONNECTED -compact
.It Er E_OK
The function was successful.
.It Er E_POSTED
The menu is already posted.
.It Er E_CONNECTED
An item was already connected to a menu.
.El
.Sh SEE ALSO
.Xr curses 3 ,
.Xr menus 3
.Sh NOTES
The header
.Pa \*[Lt]menu.h\*[Gt]
automatically includes both
.Pa \*[Lt]curses.h\*[Gt]
and
.Pa \*[Lt]eti.h\*[Gt] .