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ncursesw-morphos/man/menu_hook.3x

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ncurses 4.1
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'\" t
ncurses 5.0
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.\"***************************************************************************
ncurses 5.7 - patch 20100731 + modify initialization check for win32con driver to eliminate need for special case for TERM "unknown", using terminal database if available (prompted by discussion with Roumen Petrov). + for MinGW port, ensure that terminal driver is setup if tgetent() is called (patch by Roumen Petrov). + document tabs "-0" and "-8" options in manpage. + fix Debian "lintian" issues with manpages reported in http://lintian.debian.org/full/csmall@debian.org.html#ncurses
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.\" Copyright (c) 1998-2007,2010 Free Software Foundation, Inc. *
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.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\" copy of this software and associated documentation files (the *
.\" "Software"), to deal in the Software without restriction, including *
.\" without limitation the rights to use, copy, modify, merge, publish, *
.\" distribute, distribute with modifications, sublicense, and/or sell *
.\" copies of the Software, and to permit persons to whom the Software is *
.\" furnished to do so, subject to the following conditions: *
.\" *
.\" The above copyright notice and this permission notice shall be included *
.\" in all copies or substantial portions of the Software. *
.\" *
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
.\" IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
.\" DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
.\" OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
.\" THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
.\" *
.\" Except as contained in this notice, the name(s) of the above copyright *
.\" holders shall not be used in advertising or otherwise to promote the *
.\" sale, use or other dealings in this Software without prior written *
.\" authorization. *
.\"***************************************************************************
.\"
ncurses 5.7 - patch 20101204 + add special case to _nc_infotocap() to recognize the setaf/setab strings from xterm+256color and xterm+88color, and provide a reduced version which works with termcap. + remove obsolete emacs "Local Variables" section from documentation (request by Sven Joachim). + update doc/html/index.html to include NCURSES-Programming-HOWTO.html (report by Sven Joachim).
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.\" $Id: menu_hook.3x,v 1.11 2010/12/04 18:40:45 tom Exp $
ncurses 4.1
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.TH menu_hook 3X ""
.SH NAME
ncurses 5.7 - patch 20100731 + modify initialization check for win32con driver to eliminate need for special case for TERM "unknown", using terminal database if available (prompted by discussion with Roumen Petrov). + for MinGW port, ensure that terminal driver is setup if tgetent() is called (patch by Roumen Petrov). + document tabs "-0" and "-8" options in manpage. + fix Debian "lintian" issues with manpages reported in http://lintian.debian.org/full/csmall@debian.org.html#ncurses
2010-08-01 08:45:28 +08:00
\fBmenu_hook\fR \- set hooks for automatic invocation by applications
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.SH SYNOPSIS
\fB#include <menu.h>\fR
.br
ncurses 5.6 - patch 20070224 + change internal return codes of _nc_wgetch() to check for cases where KEY_CODE_YES should be returned, e.g., if a KEY_RESIZE was ungetch'd, and read by wget_wch(). + fix static-library build broken in 20070217 changes to remove "-ldl" (report by Miroslav Lichvar). + change makefile/scripts for cygwin to allow building termlib. + use Form_Hook in manpages to match form.h + use Menu_Hook in manpages, as well as a few places in menu.h + correct form- and menu-manpages to use specific Field_Options, Menu_Options and Item_Options types. + correct prototype for _tracechar() in manpage (cf: 20011229). + correct prototype for wunctrl() in manpage.
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int set_item_init(MENU *menu, Menu_Hook func);
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.br
ncurses 5.6 - patch 20070224 + change internal return codes of _nc_wgetch() to check for cases where KEY_CODE_YES should be returned, e.g., if a KEY_RESIZE was ungetch'd, and read by wget_wch(). + fix static-library build broken in 20070217 changes to remove "-ldl" (report by Miroslav Lichvar). + change makefile/scripts for cygwin to allow building termlib. + use Form_Hook in manpages to match form.h + use Menu_Hook in manpages, as well as a few places in menu.h + correct form- and menu-manpages to use specific Field_Options, Menu_Options and Item_Options types. + correct prototype for _tracechar() in manpage (cf: 20011229). + correct prototype for wunctrl() in manpage.
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Menu_Hook item_init(const MENU *menu);
ncurses 4.1
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.br
ncurses 5.6 - patch 20070224 + change internal return codes of _nc_wgetch() to check for cases where KEY_CODE_YES should be returned, e.g., if a KEY_RESIZE was ungetch'd, and read by wget_wch(). + fix static-library build broken in 20070217 changes to remove "-ldl" (report by Miroslav Lichvar). + change makefile/scripts for cygwin to allow building termlib. + use Form_Hook in manpages to match form.h + use Menu_Hook in manpages, as well as a few places in menu.h + correct form- and menu-manpages to use specific Field_Options, Menu_Options and Item_Options types. + correct prototype for _tracechar() in manpage (cf: 20011229). + correct prototype for wunctrl() in manpage.
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int set_item_term(MENU *menu, Menu_Hook func);
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.br
ncurses 5.6 - patch 20070224 + change internal return codes of _nc_wgetch() to check for cases where KEY_CODE_YES should be returned, e.g., if a KEY_RESIZE was ungetch'd, and read by wget_wch(). + fix static-library build broken in 20070217 changes to remove "-ldl" (report by Miroslav Lichvar). + change makefile/scripts for cygwin to allow building termlib. + use Form_Hook in manpages to match form.h + use Menu_Hook in manpages, as well as a few places in menu.h + correct form- and menu-manpages to use specific Field_Options, Menu_Options and Item_Options types. + correct prototype for _tracechar() in manpage (cf: 20011229). + correct prototype for wunctrl() in manpage.
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Menu_Hook item_term(const MENU *menu);
ncurses 4.1
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.br
ncurses 5.6 - patch 20070224 + change internal return codes of _nc_wgetch() to check for cases where KEY_CODE_YES should be returned, e.g., if a KEY_RESIZE was ungetch'd, and read by wget_wch(). + fix static-library build broken in 20070217 changes to remove "-ldl" (report by Miroslav Lichvar). + change makefile/scripts for cygwin to allow building termlib. + use Form_Hook in manpages to match form.h + use Menu_Hook in manpages, as well as a few places in menu.h + correct form- and menu-manpages to use specific Field_Options, Menu_Options and Item_Options types. + correct prototype for _tracechar() in manpage (cf: 20011229). + correct prototype for wunctrl() in manpage.
2007-02-25 09:57:04 +08:00
int set_menu_init(MENU *menu, Menu_Hook func);
ncurses 4.1
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.br
ncurses 5.6 - patch 20070224 + change internal return codes of _nc_wgetch() to check for cases where KEY_CODE_YES should be returned, e.g., if a KEY_RESIZE was ungetch'd, and read by wget_wch(). + fix static-library build broken in 20070217 changes to remove "-ldl" (report by Miroslav Lichvar). + change makefile/scripts for cygwin to allow building termlib. + use Form_Hook in manpages to match form.h + use Menu_Hook in manpages, as well as a few places in menu.h + correct form- and menu-manpages to use specific Field_Options, Menu_Options and Item_Options types. + correct prototype for _tracechar() in manpage (cf: 20011229). + correct prototype for wunctrl() in manpage.
2007-02-25 09:57:04 +08:00
Menu_Hook menu_init(const MENU *menu);
ncurses 4.1
1997-05-15 12:00:00 +08:00
.br
ncurses 5.6 - patch 20070224 + change internal return codes of _nc_wgetch() to check for cases where KEY_CODE_YES should be returned, e.g., if a KEY_RESIZE was ungetch'd, and read by wget_wch(). + fix static-library build broken in 20070217 changes to remove "-ldl" (report by Miroslav Lichvar). + change makefile/scripts for cygwin to allow building termlib. + use Form_Hook in manpages to match form.h + use Menu_Hook in manpages, as well as a few places in menu.h + correct form- and menu-manpages to use specific Field_Options, Menu_Options and Item_Options types. + correct prototype for _tracechar() in manpage (cf: 20011229). + correct prototype for wunctrl() in manpage.
2007-02-25 09:57:04 +08:00
int set_menu_term(MENU *menu, Menu_Hook func);
ncurses 4.1
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.br
ncurses 5.6 - patch 20070224 + change internal return codes of _nc_wgetch() to check for cases where KEY_CODE_YES should be returned, e.g., if a KEY_RESIZE was ungetch'd, and read by wget_wch(). + fix static-library build broken in 20070217 changes to remove "-ldl" (report by Miroslav Lichvar). + change makefile/scripts for cygwin to allow building termlib. + use Form_Hook in manpages to match form.h + use Menu_Hook in manpages, as well as a few places in menu.h + correct form- and menu-manpages to use specific Field_Options, Menu_Options and Item_Options types. + correct prototype for _tracechar() in manpage (cf: 20011229). + correct prototype for wunctrl() in manpage.
2007-02-25 09:57:04 +08:00
Menu_Hook menu_term(const MENU *menu);
ncurses 4.1
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.br
.SH DESCRIPTION
These functions make it possible to set hook functions to be called at various
ncurses 5.0
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points in the automatic processing of input event codes by \fBmenu_driver\fR.
ncurses 5.6
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.PP
ncurses 4.1
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The function \fBset_item_init\fR sets a hook to be called at menu-post time and
each time the selected item changes (after the change). \fBitem_init\fR
returns the current item init hook, if any (\fBNULL\fR if there is no such
hook).
ncurses 5.6
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.PP
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The function \fBset_item_term\fR sets a hook to be called at menu-unpost time
and each time the selected item changes (before the change). \fBitem_term\fR
returns the current item term hook, if any (\fBNULL\fR if there is no such
hook).
ncurses 5.6
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.PP
ncurses 4.1
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The function \fBset_menu_init\fR sets a hook to be called at menu-post time and
just after the top row on the menu changes once it is posted. \fBmenu_init\fR
returns the current menu init hook, if any (\fBNULL\fR if there is no such
hook).
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.PP
ncurses 4.1
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The function \fBset_menu_term\fR sets a hook to be called at menu-unpost time
and just before the top row on the menu changes once it is posted.
\fBmenu_term\fR returns the current menu term hook, if any (\fBNULL\fR if there
is no such hook).
.SH RETURN VALUE
Routines that return pointers return \fBNULL\fR on error. Other routines
return one of the following:
.TP 5
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.B E_OK
ncurses 4.1
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The routine succeeded.
.TP 5
ncurses 5.6
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.B E_SYSTEM_ERROR
ncurses 4.1
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System error occurred (see \fBerrno\fR).
.SH SEE ALSO
\fBcurses\fR(3X), \fBmenu\fR(3X).
.SH NOTES
The header file \fB<menu.h>\fR automatically includes the header file
\fB<curses.h>\fR.
.SH PORTABILITY
These routines emulate the System V menu library. They were not supported on
Version 7 or BSD versions.
.SH AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
S. Raymond.
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