\"      $NetBSD: menu_hook.3,v 1.9 2017/07/03 21:32:50 wiz Exp $
\"
\" Copyright (c) 1999
\"      Brett Lymn - [email protected], [email protected]
\"
\" 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
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\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
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\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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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 <menu.h>
automatically includes both
Pa <curses.h>
and
Pa <eti.h> .

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