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<H1 class="no-header">menu_hook 3x</H1>
<PRE>
<STRONG><A HREF="menu_hook.3x.html">menu_hook(3x)</A></STRONG>                                                    <STRONG><A HREF="menu_hook.3x.html">menu_hook(3x)</A></STRONG>


</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
       <STRONG>menu_hook</STRONG> - set hooks for automatic invocation by applications


</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;menu.h&gt;</STRONG>
       int set_item_init(MENU *menu, Menu_Hook func);
       Menu_Hook item_init(const MENU *menu);
       int set_item_term(MENU *menu, Menu_Hook func);
       Menu_Hook item_term(const MENU *menu);
       int set_menu_init(MENU *menu, Menu_Hook func);
       Menu_Hook menu_init(const MENU *menu);
       int set_menu_term(MENU *menu, Menu_Hook func);
       Menu_Hook menu_term(const MENU *menu);


</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
       These  functions make it possible to set hook functions to be called at
       various points in the automatic processing  of  input  event  codes  by
       <STRONG>menu_driver</STRONG>.

       The  function  <STRONG>set_item_init</STRONG> sets a hook to be called at menu-post time
       and each time the selected item changes (after the change).   <STRONG>item_init</STRONG>
       returns  the  current  item init hook, if any (<STRONG>NULL</STRONG> if there is no such
       hook).

       The function <STRONG>set_item_term</STRONG> sets a hook to be called at menu-unpost time
       and each time the selected item changes (before the change).  <STRONG>item_term</STRONG>
       returns the current item term hook, if any (<STRONG>NULL</STRONG> if there  is  no  such
       hook).

       The  function  <STRONG>set_menu_init</STRONG> sets a hook to be called at menu-post time
       and just after the top row on the  menu  changes  once  it  is  posted.
       <STRONG>menu_init</STRONG>  returns the current menu init hook, if any (<STRONG>NULL</STRONG> if there is
       no such hook).

       The function <STRONG>set_menu_term</STRONG> sets a hook to be called at menu-unpost time
       and  just  before  the  top  row on the menu changes once it is posted.
       <STRONG>menu_term</STRONG> returns the current menu term hook, if any (<STRONG>NULL</STRONG> if there  is
       no such hook).


</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
       Routines  that  return  pointers  return <STRONG>NULL</STRONG> on error.  Other routines
       return one of the following:

       <STRONG>E_OK</STRONG> The routine succeeded.

       <STRONG>E_SYSTEM_ERROR</STRONG>
            System error occurred (see <STRONG>errno(3)</STRONG>).


</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
       <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="menu.3x.html">menu(3x)</A></STRONG>.


</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
       The  header  file  <STRONG>&lt;menu.h&gt;</STRONG>  automatically  includes  the  header  file
       <STRONG>&lt;curses.h&gt;</STRONG>.


</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
       These  routines  emulate the System V menu library.  They were not sup-
       ported on Version 7 or BSD versions.


</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S.
       Raymond.


                                                                 <STRONG><A HREF="menu_hook.3x.html">menu_hook(3x)</A></STRONG>
</PRE>
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<ul>
<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
<li><a href="#h2-NOTES">NOTES</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-AUTHORS">AUTHORS</a></li>
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