95 lines
4.3 KiB
Plaintext
95 lines
4.3 KiB
Plaintext
'\" t
|
|
.\"***************************************************************************
|
|
.\" Copyright (c) 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 1.11 2010/12/04 18:40:45 tom Exp $
|
|
.TH form_hook 3X ""
|
|
.SH NAME
|
|
\fBform_hook\fR \- set hooks for automatic invocation by applications
|
|
.SH SYNOPSIS
|
|
\fB#include <form.h>\fR
|
|
.br
|
|
int set_field_init(FORM *form, Form_Hook func);
|
|
.br
|
|
Form_Hook field_init(const FORM *form);
|
|
.br
|
|
int set_field_term(FORM *form, Form_Hook func);
|
|
.br
|
|
Form_Hook field_term(const FORM *form);
|
|
.br
|
|
int set_form_init(FORM *form, Form_Hook func);
|
|
.br
|
|
Form_Hook form_init(const FORM *form);
|
|
.br
|
|
int set_form_term(FORM *form, Form_Hook func);
|
|
.br
|
|
Form_Hook form_term(const FORM *form);
|
|
.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.
|
|
.PP
|
|
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).
|
|
.PP
|
|
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).
|
|
.PP
|
|
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).
|
|
.PP
|
|
The function \fBset_form_term\fR sets a hook to be called at form-unpost time
|
|
and just before a page change once it is posted. \fBform_init\fR
|
|
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
|
|
.B E_OK
|
|
The routine succeeded.
|
|
.TP 5
|
|
.B E_SYSTEM_ERROR
|
|
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.
|