1.\" $NetBSD: menu_hook.3,v 1.8 2003/04/16 13:35:10 wiz Exp $ 2.\" 3.\" Copyright (c) 1999 4.\" Brett Lymn - blymn@baea.com.au, brett_lymn@yahoo.com.au 5.\" 6.\" This code is donated to The NetBSD Foundation by the author. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 2. Redistributions in binary form must reproduce the above copyright 14.\" notice, this list of conditions and the following disclaimer in the 15.\" documentation and/or other materials provided with the distribution. 16.\" 3. The name of the Author may not be used to endorse or promote 17.\" products derived from this software without specific prior written 18.\" permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.Dd September 10, 1999 33.Dt MENU_HOOK 3 34.Os 35.Sh NAME 36.Nm item_init , 37.Nm item_term , 38.Nm menu_init , 39.Nm menu_term , 40.Nm set_item_init , 41.Nm set_item_term , 42.Nm set_menu_init , 43.Nm set_menu_term 44.Nd get or set handler functions for menu post/unpost or item change 45.Sh LIBRARY 46.Lb libmenu 47.Sh SYNOPSIS 48.In menu.h 49.Ft void (*hook)() 50.Fn item_init "MENU *menu" 51.Ft void (*hook)() 52.Fn item_term "MENU *menu" 53.Ft void (*hook)() 54.Fn menu_init "MENU *menu" 55.Ft void (*hook)() 56.Fn menu_term "MENU *menu" 57.Ft int 58.Fn set_item_init "MENU *menu" "void (*hook)())" 59.Ft int 60.Fn set_item_term "MENU *menu" "void (*hook)())" 61.Ft int 62.Fn set_menu_init "MENU *menu" "void (*hook)())" 63.Ft int 64.Fn set_menu_term "MENU *menu" "void (*hook)())" 65.Sh DESCRIPTION 66The 67.Fn item_init 68function returns a pointer to the function that will be called 69whenever the menu is posted and also just after the current item 70changes. 71This is set by the 72.Fn set_item_init 73call. 74The 75.Fn item_term 76function returns a pointer to the function that will be called before 77the menu is unposted and just before the current item changes, this 78pointer is set by the 79.Fn set_item_term 80call. 81The 82.Fn menu_init 83functions returns a pointer to the function that will be called just 84before the menu is posted to the screen. 85This pointer is set by the 86.Fn set_menu_init 87function call. 88The 89.Fn menu_term 90function returns a pointer to the function that will be called just 91after the menu has been unposted, this pointer is set by the 92.Fn set_menu_term 93function. 94.Sh SEE ALSO 95.Xr curses 3 , 96.Xr menus 3 97.Sh NOTES 98The header 99.Pa \*[Lt]menu.h\*[Gt] 100automatically includes both 101.Pa \*[Lt]curses.h\*[Gt] 102and 103.Pa \*[Lt]eti.h\*[Gt] . 104