.\"	$NetBSD: menu_mark.3,v 1.3 2001/02/26 01:26:06 blymn 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.
.\"
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.Dd September, 1999
.Dt MENU_MARK 3
.Os BSD 4
.Sh NAME
.Nm menu_mark ,
.Nm menu_unmark ,
.Nm set_menu_mark ,
.Nm set_menu_unmark
.Nd menu library
.Sh LIBRARY
.Lb libmenu
.Sh SYNOPSIS
.Fd #include <menu.h>
.Ft char *
.Fn menu_mark "MENU *menu"
.Ft char *
.Fn menu_unmark "MENU *menu"
.Ft int
.Fn set_menu_mark "MENU *menu" "char *mark"
.Ft int
.Fn set_menu_unmark "MENU *menu" "char *mark"
.Sh DESCRIPTION
The
.Fn menu_mark
function returns a pointer to the character string that is used to
mark selected items in the menu.  The mark string is set by the
.Fn set_menu_mark
function.  The
.Fn menu_unmark
function returns a pointer to the character string that is used to
indicate a menu items is not selected, this string is set by the 
.Fn set_menu_unmark
function.
The mark and unmark strings may be of differing lengths, the room
allocated to drawing the mark will be the maximum of the lengths of
both the mark and unmark strings.  The shorter of the two strings will
be left justified and space padded.
.Sh RETURN VALUES
The functions return one of the following error values:
.Pp
.ta 20
.nf
E_OK			The function was successful
E_SYSTEM_ERROR		There was a system error during the call.
E_BAD_ARGUMENT		One or more of the arguments passed to the function
			was incorrect.
E_POSTED		The menu is already posted.
E_CONNECTED		An item was already connected to a menu.
E_BAD_STATE		The function was called from within an initialisation
			or termination routine.
E_NO_ROOM		The menu does not fit within the subwindow.
E_NOT_POSTED		The menu is not posted
E_UNKNOWN_COMMAND	The menu driver does not recognise the request
			passed to it.
E_NO_MATCH		The character search failed to find a match.
E_NOT_SELECTABLE	The item could not be selected.
E_NOT_CONNECTED		The item is not connected to a menu.
E_REQUEST_DENIED	The menu driver could not process the request.
.fi
.ft 1
.br
.ne 8
.Sh SEE ALSO
.Xr curses 3 ,
.Xr menus 3
.Sh NOTES
The header
.Xr <menu.h>
automatically includes both
.Xr <curses.h>
and
.Xr <eti.h>