104 lines
3.2 KiB
Groff
104 lines
3.2 KiB
Groff
.\" $NetBSD: menu_hook.3,v 1.9 2017/07/03 21:32:50 wiz Exp $
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.\"
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.\" Copyright (c) 1999
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.\" Brett Lymn - blymn@baea.com.au, brett_lymn@yahoo.com.au
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.\"
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.\" This code is donated to The NetBSD Foundation by the author.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. The name of the Author may not be used to endorse or promote
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.\" products derived from this software without specific prior written
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.\" permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd September 10, 1999
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.Dt MENU_HOOK 3
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.Os
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.Sh NAME
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.Nm item_init ,
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.Nm item_term ,
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.Nm menu_init ,
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.Nm menu_term ,
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.Nm set_item_init ,
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.Nm set_item_term ,
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.Nm set_menu_init ,
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.Nm set_menu_term
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.Nd get or set handler functions for menu post/unpost or item change
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.Sh LIBRARY
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.Lb libmenu
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.Sh SYNOPSIS
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.In menu.h
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.Ft void (*hook)()
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.Fn item_init "MENU *menu"
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.Ft void (*hook)()
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.Fn item_term "MENU *menu"
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.Ft void (*hook)()
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.Fn menu_init "MENU *menu"
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.Ft void (*hook)()
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.Fn menu_term "MENU *menu"
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.Ft int
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.Fn set_item_init "MENU *menu" "void (*hook)())"
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.Ft int
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.Fn set_item_term "MENU *menu" "void (*hook)())"
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.Ft int
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.Fn set_menu_init "MENU *menu" "void (*hook)())"
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.Ft int
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.Fn set_menu_term "MENU *menu" "void (*hook)())"
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.Sh DESCRIPTION
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The
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.Fn item_init
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function returns a pointer to the function that will be called
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whenever the menu is posted and also just after the current item
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changes.
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This is set by the
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.Fn set_item_init
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call.
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The
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.Fn item_term
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function returns a pointer to the function that will be called before
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the menu is unposted and just before the current item changes, this
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pointer is set by the
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.Fn set_item_term
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call.
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The
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.Fn menu_init
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functions returns a pointer to the function that will be called just
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before the menu is posted to the screen.
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This pointer is set by the
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.Fn set_menu_init
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function call.
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The
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.Fn menu_term
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function returns a pointer to the function that will be called just
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after the menu has been unposted, this pointer is set by the
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.Fn set_menu_term
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function.
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.Sh SEE ALSO
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.Xr curses 3 ,
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.Xr menus 3
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.Sh NOTES
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The header
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.Pa <menu.h>
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automatically includes both
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.Pa <curses.h>
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and
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.Pa <eti.h> .
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