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'\" t
.\"***************************************************************************
.\" Copyright (c) 1998-2010,2012 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_field.3x,v 1.11 2012/11/03 23:03:59 tom Exp $
.TH field 3FORM ""
.SH NAME
\fBform_field\fR \- make and break connections between fields and forms
.SH SYNOPSIS
\fB#include <form.h>\fR
.br
int set_form_fields(FORM *form, FIELD **fields);
.br
FIELD **form_fields(const FORM *form);
.br
int field_count(const FORM *form);
.br
int move_field(FIELD *field, int frow, int fcol);
.br
.SH DESCRIPTION
The function \fBset_form_fields\fR changes the field pointer array of
the given \fIform\fR. The array must be terminated by a \fBNULL\fR.
.PP
The function \fBform_fields\fR returns the field array of the given form.
.PP
The function \fBfield_count\fR returns the count of fields in \fIform\fR.
.PP
The function \fBmove_field\fR moves the given field (which must be disconnected)
to a specified location on the screen.
.SH RETURN VALUE
The function \fBform_fields\fR returns a pointer (which may be \fBNULL\fR).
It does not set errno.
.PP
The function \fBfield_count\fR returns \fBERR\fR if the \fIform\fP parameter
is \fBNULL\fP.
.PP
The functions \fBset_form_fields\fR and \fBmove_field\fR return one of
the following codes on error:
.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_POSTED
The form is already posted.
.TP 5
.B E_SYSTEM_ERROR
System error occurred (see \fBerrno\fR).
.SH SEE ALSO
\fBncurses\fR(3NCURSES), \fBform\fR(3FORM).
.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.
.PP
The SVr4 forms library documentation specifies the \fBfield_count\fR error value
as \-1 (which is the value of \fBERR\fR).
.SH AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
S. Raymond.
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