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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:43:11 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 19:43:11 +0000
commitfc22b3d6507c6745911b9dfcc68f1e665ae13dbc (patch)
treece1e3bce06471410239a6f41282e328770aa404a /upstream/debian-bookworm/man3/hook.3form
parentInitial commit. (diff)
downloadmanpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.tar.xz
manpages-l10n-fc22b3d6507c6745911b9dfcc68f1e665ae13dbc.zip
Adding upstream version 4.22.0.upstream/4.22.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+'\" t
+.\"***************************************************************************
+.\" Copyright 2018-2021,2022 Thomas E. Dickey *
+.\" Copyright 1998-2007,2010 Free Software Foundation, Inc. *
+.\" *
+.\" 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. *
+.\"***************************************************************************
+.\"
+.\" $Id: form_hook.3x,v 1.19 2022/02/12 20:03:40 tom Exp $
+.TH hook 3FORM ""
+.SH NAME
+\fBform_hook\fP \- set hooks for automatic invocation by applications
+.SH SYNOPSIS
+\fB#include <form.h>\fP
+.sp
+\fBint set_field_init(FORM *\fIform\fB, Form_Hook \fIfunc\fB);\fR
+.br
+\fBForm_Hook field_init(const FORM *\fIform\fB);\fR
+.sp
+\fBint set_field_term(FORM *\fIform\fB, Form_Hook \fIfunc\fB);\fR
+.br
+\fBForm_Hook field_term(const FORM *\fIform\fB);\fR
+.sp
+\fBint set_form_init(FORM *\fIform\fB, Form_Hook \fIfunc\fB);\fR
+.br
+\fBForm_Hook form_init(const FORM *\fIform\fB);\fR
+.sp
+\fBint set_form_term(FORM *\fIform\fB, Form_Hook \fIfunc\fB);\fR
+.br
+\fBForm_Hook form_term(const FORM *\fIform\fB);\fR
+.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\fP.
+.PP
+The function \fBset_field_init\fP sets a hook to be called at form-post time
+and each time the selected field changes (after the change).
+\fBfield_init\fP
+returns the current field init hook, if any (\fBNULL\fP if there is no such
+hook).
+.PP
+The function \fBset_field_term\fP sets a hook to be called at form-unpost time
+and each time the selected field changes (before the change).
+\fBfield_term\fP
+returns the current field term hook, if any (\fBNULL\fP if there is no such
+hook).
+.PP
+The function \fBset_form_init\fP sets a hook to be called at form-post time and
+just after a page change once it is posted.
+\fBform_init\fP returns the
+current form init hook, if any (\fBNULL\fP if there is no such hook).
+.PP
+The function \fBset_form_term\fP sets a hook to be called at form-unpost time
+and just before a page change once it is posted.
+\fBform_init\fP
+returns the current form term hook, if any (\fBNULL\fP if there is no such
+hook).
+.SH RETURN VALUE
+Routines that return pointers return \fBNULL\fP on error.
+Other routines
+return one of the following:
+.TP 5
+.B E_OK
+The routine succeeded.
+.TP 5
+.B E_SYSTEM_ERROR
+System error occurred (see \fBerrno\fP(3)).
+.SH SEE ALSO
+\fBncurses\fP(3NCURSES), \fBform\fP(3FORM).
+.SH NOTES
+The header file \fB<form.h>\fP automatically includes the header file
+\fB<curses.h>\fP.
+.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.