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ncursesw-morphos/man/form_hook.3x

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ncurses 4.1
1997-05-15 12:00:00 +08:00
'\" t
ncurses 5.0
1999-10-24 12:32:42 +08:00
.\"***************************************************************************
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
.\" Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
ncurses 5.0
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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 5.6 - 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
.\" $Id: form_hook.3x,v 1.9 2007/02/24 17:34:18 tom Exp $
ncurses 4.1
1997-05-15 12:00:00 +08:00
.TH form_hook 3X ""
.SH NAME
\fBform_hook\fR - set hooks for automatic invocation by applications
.SH SYNOPSIS
\fB#include <form.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.
2007-02-25 09:57:04 +08:00
int set_field_init(FORM *form, Form_Hook func);
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
Form_Hook field_init(const FORM *form);
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_field_term(FORM *form, Form_Hook func);
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
Form_Hook field_term(const FORM *form);
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_form_init(FORM *form, Form_Hook func);
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
Form_Hook form_init(const FORM *form);
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_form_term(FORM *form, Form_Hook func);
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
Form_Hook form_term(const FORM *form);
ncurses 4.1
1997-05-15 12:00:00 +08:00
.br
.SH DESCRIPTION
These functions make it possible to set hook functions to be called at various
points in the automatic processing of input event codes by \fBform_driver\fR.
ncurses 5.6
2006-12-18 12:32:42 +08:00
.PP
ncurses 4.1
1997-05-15 12:00:00 +08:00
The function \fBset_field_init\fR sets a hook to be called at form-post time
and each time the selected field changes (after the change). \fBfield_init\fR
returns the current field init hook, if any (\fBNULL\fR if there is no such
hook).
ncurses 5.6
2006-12-18 12:32:42 +08:00
.PP
ncurses 4.1
1997-05-15 12:00:00 +08:00
The function \fBset_field_term\fR sets a hook to be called at form-unpost time
and each time the selected field changes (before the change). \fBfield_term\fR
returns the current field term hook, if any (\fBNULL\fR if there is no such
hook).
ncurses 5.6
2006-12-18 12:32:42 +08:00
.PP
ncurses 4.1
1997-05-15 12:00:00 +08:00
The function \fBset_form_init\fR sets a hook to be called at form-post time and
just after a page change once it is posted. \fBform_init\fR returns the
current form init hook, if any (\fBNULL\fR if there is no such hook).
ncurses 5.6
2006-12-18 12:32:42 +08:00
.PP
ncurses 4.1
1997-05-15 12:00:00 +08:00
The function \fBset_form_term\fR sets a hook to be called at form-unpost time
ncurses 5.0
1999-10-24 12:32:42 +08:00
and just before a page change once it is posted. \fBform_init\fR
ncurses 4.1
1997-05-15 12:00:00 +08:00
returns the current form 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
ncurses 5.6
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.B E_OK
ncurses 4.1
1997-05-15 12:00:00 +08:00
The routine succeeded.
.TP 5
ncurses 5.6
2006-12-18 12:32:42 +08:00
.B E_SYSTEM_ERROR
ncurses 4.1
1997-05-15 12:00:00 +08:00
System error occurred (see \fBerrno\fR).
.SH SEE ALSO
\fBcurses\fR(3X), \fBform\fR(3X).
.SH NOTES
The header file \fB<form.h>\fR automatically includes the header file
\fB<curses.h>\fR.
.SH PORTABILITY
These routines emulate the System V forms 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.
.\"#
.\"# The following sets edit modes for GNU EMACS
.\"# Local Variables:
.\"# mode:nroff
.\"# fill-column:79
.\"# End:
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