1999-08-24 01:06:48 +00:00
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'\" t
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.\"***************************************************************************
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2007-12-30 11:08:14 +00:00
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.\" Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
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1999-08-24 01:06:48 +00:00
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.\" *
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.\" Permission is hereby granted, free of charge, to any person obtaining a *
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.\" copy of this software and associated documentation files (the *
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.\" "Software"), to deal in the Software without restriction, including *
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.\" without limitation the rights to use, copy, modify, merge, publish, *
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.\" distribute, distribute with modifications, sublicense, and/or sell *
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.\" copies of the Software, and to permit persons to whom the Software is *
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.\" furnished to do so, subject to the following conditions: *
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.\" *
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.\" The above copyright notice and this permission notice shall be included *
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.\" in all copies or substantial portions of the Software. *
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.\" *
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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.\" *
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.\" Except as contained in this notice, the name(s) of the above copyright *
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.\" holders shall not be used in advertising or otherwise to promote the *
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.\" sale, use or other dealings in this Software without prior written *
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.\" authorization. *
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.\"***************************************************************************
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.\"
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.\" $Id: menu_hook.3x,v 1.9 2007/02/24 17:34:08 tom Exp $
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1999-08-24 01:06:48 +00:00
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.TH menu_hook 3X ""
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.SH NAME
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\fBmenu_hook\fR - set hooks for automatic invocation by applications
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.SH SYNOPSIS
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\fB#include <menu.h>\fR
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.br
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2007-12-30 11:08:14 +00:00
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int set_item_init(MENU *menu, Menu_Hook func);
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1999-08-24 01:06:48 +00:00
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.br
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2007-12-30 11:08:14 +00:00
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Menu_Hook item_init(const MENU *menu);
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1999-08-24 01:06:48 +00:00
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.br
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2007-12-30 11:08:14 +00:00
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int set_item_term(MENU *menu, Menu_Hook func);
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1999-08-24 01:06:48 +00:00
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.br
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2007-12-30 11:08:14 +00:00
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Menu_Hook item_term(const MENU *menu);
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1999-08-24 01:06:48 +00:00
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.br
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2007-12-30 11:08:14 +00:00
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int set_menu_init(MENU *menu, Menu_Hook func);
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1999-08-24 01:06:48 +00:00
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.br
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2007-12-30 11:08:14 +00:00
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Menu_Hook menu_init(const MENU *menu);
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1999-08-24 01:06:48 +00:00
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.br
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2007-12-30 11:08:14 +00:00
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int set_menu_term(MENU *menu, Menu_Hook func);
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1999-08-24 01:06:48 +00:00
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.br
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2007-12-30 11:08:14 +00:00
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Menu_Hook menu_term(const MENU *menu);
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1999-08-24 01:06:48 +00:00
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.br
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.SH DESCRIPTION
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These functions make it possible to set hook functions to be called at various
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points in the automatic processing of input event codes by \fBmenu_driver\fR.
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2007-01-20 07:32:02 +00:00
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.PP
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1999-08-24 01:06:48 +00:00
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The function \fBset_item_init\fR sets a hook to be called at menu-post time and
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each time the selected item changes (after the change). \fBitem_init\fR
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returns the current item init hook, if any (\fBNULL\fR if there is no such
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hook).
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2007-01-20 07:32:02 +00:00
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.PP
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1999-08-24 01:06:48 +00:00
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The function \fBset_item_term\fR sets a hook to be called at menu-unpost time
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and each time the selected item changes (before the change). \fBitem_term\fR
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returns the current item term hook, if any (\fBNULL\fR if there is no such
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hook).
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2007-01-20 07:32:02 +00:00
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.PP
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1999-08-24 01:06:48 +00:00
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The function \fBset_menu_init\fR sets a hook to be called at menu-post time and
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just after the top row on the menu changes once it is posted. \fBmenu_init\fR
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returns the current menu init hook, if any (\fBNULL\fR if there is no such
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hook).
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2007-01-20 07:32:02 +00:00
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.PP
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1999-08-24 01:06:48 +00:00
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The function \fBset_menu_term\fR sets a hook to be called at menu-unpost time
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and just before the top row on the menu changes once it is posted.
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\fBmenu_term\fR returns the current menu term hook, if any (\fBNULL\fR if there
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is no such hook).
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.SH RETURN VALUE
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Routines that return pointers return \fBNULL\fR on error. Other routines
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return one of the following:
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.TP 5
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2007-01-20 07:32:02 +00:00
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.B E_OK
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The routine succeeded.
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.TP 5
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2007-01-20 07:32:02 +00:00
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.B E_SYSTEM_ERROR
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1999-08-24 01:06:48 +00:00
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System error occurred (see \fBerrno\fR).
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.SH SEE ALSO
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\fBcurses\fR(3X), \fBmenu\fR(3X).
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.SH NOTES
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The header file \fB<menu.h>\fR automatically includes the header file
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\fB<curses.h>\fR.
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.SH PORTABILITY
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These routines emulate the System V menu library. They were not supported on
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Version 7 or BSD versions.
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.SH AUTHORS
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Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
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S. Raymond.
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.\"#
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.\"# The following sets edit modes for GNU EMACS
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.\"# Local Variables:
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.\"# mode:nroff
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.\"# fill-column:79
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.\"# End:
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