1.\" $NetBSD: menu_hook.3,v 1.6 2002/02/20 11:47:56 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.Fd #include \*[Lt]menu.h\*[Gt] 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. This is set by the 71.Fn set_item_init 72call. The 73.Fn item_term 74function returns a pointer to the function that will be called before 75the menu is unposted and just before the current item changes, this 76pointer is set by the 77.Fn set_item_term 78call. 79The 80.Fn menu_init 81functions returns a pointer to the function that will be called just 82before the menu is posted to the screen. This pointer is set by the 83.Fn set_menu_init 84function call. 85The 86.Fn menu_term 87function returns a pointer to the function that will be called just 88after the menu has been unposted, this pointer is set by the 89.Fn set_menu_term 90function. 91.Sh SEE ALSO 92.Xr curses 3 , 93.Xr menus 3 94.Sh NOTES 95The header 96.Pa \*[Lt]menu.h\*[Gt] 97automatically includes both 98.Pa \*[Lt]curses.h\*[Gt] 99and 100.Pa \*[Lt]eti.h\*[Gt] . 101