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'\" t
.\"***************************************************************************
.\" Copyright 2018,2020 Thomas E. Dickey                                     *
.\" Copyright 1998-2010,2015 Free Software Foundation, Inc.                  *
.\"                                                                          *
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.\" 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    *
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.\" sale, use or other dealings in this Software without prior written       *
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.\"***************************************************************************
.\"
.\" $Id: form_new.3x,v 1.15 2020/10/24 09:02:26 tom Exp $
.TH form_new 3X ""
.SH NAME
\fBnew_form\fR,
\fBfree_form\fP \- create and destroy forms
.SH SYNOPSIS
\fB#include <form.h>\fR
.sp
\fBFORM *new_form(FIELD **\fP\fIfields\fP\fB);\fP
.br
\fBint free_form(FORM *\fP\fIform\fP\fB);\fP
.br
.SH DESCRIPTION
The function \fBnew_form\fR creates a new form connected to a specified field
pointer array (which must be \fBNULL\fR-terminated).
.PP
The function \fBfree_form\fR disconnects \fIform\fR from its field array
and frees the storage allocated for the form.
.SH RETURN VALUE
The function \fBnew_form\fR returns \fBNULL\fR on error.
It sets \fBerrno\fP according to the function's success:
.TP 5
.B E_OK
The routine succeeded.
.TP 5
.B E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
.TP 5
.B E_CONNECTED
The field is already connected to a form.
.TP 5
.B E_SYSTEM_ERROR
System error occurred, e.g., malloc failure.
.PP
The function \fBfree_form\fR returns one of the following:
.TP 5
.B E_OK
The routine succeeded.
.TP 5
.B E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
.TP 5
.B E_POSTED
The form has already been posted.
.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.