NetBSD/lib/libmenu/menu_hook.3

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.\" $NetBSD: menu_hook.3,v 1.8 2003/04/16 13:35:10 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.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
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.\" notice, this list of conditions and the following disclaimer.
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.\" 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
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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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
.In menu.h
.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] .