set_menu_term(3x)

1menu_hook(3X)                                                    menu_hook(3X)
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NAME

6       menu_hook - set hooks for automatic invocation by applications
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SYNOPSIS

9       #include <menu.h>
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11       int set_item_init(MENU *menu, Menu_Hook func);
12       Menu_Hook item_init(const MENU *menu);
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14       int set_item_term(MENU *menu, Menu_Hook func);
15       Menu_Hook item_term(const MENU *menu);
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17       int set_menu_init(MENU *menu, Menu_Hook func);
18       Menu_Hook menu_init(const MENU *menu);
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20       int set_menu_term(MENU *menu, Menu_Hook func);
21       Menu_Hook menu_term(const MENU *menu);
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DESCRIPTION

24       These  functions make it possible to set hook functions to be called at
25       various points in the automatic processing  of  input  event  codes  by
26       menu_driver.
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28       The  function  set_item_init sets a hook to be called at menu-post time
29       and each time the selected item changes (after the change).   item_init
30       returns  the  current  item init hook, if any (NULL if there is no such
31       hook).
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33       The function set_item_term sets a hook to be called at menu-unpost time
34       and each time the selected item changes (before the change).  item_term
35       returns the current item term hook, if any (NULL if there  is  no  such
36       hook).
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38       The  function  set_menu_init sets a hook to be called at menu-post time
39       and just after the top row on the  menu  changes  once  it  is  posted.
40       menu_init  returns the current menu init hook, if any (NULL if there is
41       no such hook).
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43       The function set_menu_term sets a hook to be called at menu-unpost time
44       and  just  before  the  top  row on the menu changes once it is posted.
45       menu_term returns the current menu term hook, if any (NULL if there  is
46       no such hook).
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RETURN VALUE

49       Routines that return pointers return NULL on error.  Other routines re‐
50       turn one of the following:
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52       E_OK The routine succeeded.
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54       E_SYSTEM_ERROR
55            System error occurred (see errno(3)).
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NOTES

61       The  header  file  <menu.h>  automatically  includes  the  header  file
62       <curses.h>.
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PORTABILITY

65       These  routines  emulate the System V menu library.  They were not sup‐
66       ported on Version 7 or BSD versions.
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AUTHORS

69       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S.
70       Raymond.
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74                                                                 menu_hook(3X)