.\"	$NetBSD: menu_hook.3,v 1.6 2002/02/20 11:47:56 wiz 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 10, 1999
.Dt MENU_HOOK 3
.Os
.Sh NAME
.Nm item_init ,
.Nm item_term ,
.Nm menu_init ,
.Nm menu_term ,
.Nm set_item_init ,
.Nm set_item_term ,
.Nm set_menu_init ,
.Nm set_menu_term
.Nd get or set handler functions for menu post/unpost or item change
.Sh LIBRARY
.Lb libmenu
.Sh SYNOPSIS
.Fd #include \*[Lt]menu.h\*[Gt]
.Ft void (*hook)()
.Fn item_init "MENU *menu"
.Ft void (*hook)()
.Fn item_term "MENU *menu"
.Ft void (*hook)()
.Fn menu_init "MENU *menu"
.Ft void (*hook)()
.Fn menu_term "MENU *menu"
.Ft int
.Fn set_item_init "MENU *menu" "void (*hook)())"
.Ft int
.Fn set_item_term "MENU *menu" "void (*hook)())"
.Ft int
.Fn set_menu_init "MENU *menu" "void (*hook)())"
.Ft int
.Fn set_menu_term "MENU *menu" "void (*hook)())"
.Sh DESCRIPTION
The
.Fn item_init
function returns a pointer to the function that will be called
whenever the menu is posted and also just after the current item
changes.  This is set by the
.Fn set_item_init
call.  The
.Fn item_term
function returns a pointer to the function that will be called before
the menu is unposted and just before the current item changes, this
pointer is set by the
.Fn set_item_term
call.
The
.Fn menu_init
functions returns a pointer to the function that will be called just
before the menu is posted to the screen.  This pointer is set by the
.Fn set_menu_init
function call.
The
.Fn menu_term
function returns a pointer to the function that will be called just
after the menu has been unposted, this pointer is set by the
.Fn set_menu_term
function.
.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] .