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.\" $Id: form_opts.3x,v 1.34 2024/03/16 15:35:01 tom Exp $
.TH form_opts 3X 2024-03-16 "ncurses 6.5" "Library calls"
.SH NAME
\fBset_form_opts\fP,
\fBform_opts_on\fP,
\fBform_opts_off\fP,
\fBform_opts\fP \-
set and get form options
.SH SYNOPSIS
.nf
\fB#include <form.h>
.PP
\fBint set_form_opts(FORM *\fIform\fP, Field_Options \fIopts\fP);
\fBField_Options form_opts(const FORM *\fIform\fP);
.PP
\fBint form_opts_on(FORM *\fIform\fP, Field_Options \fIopts\fP);
\fBint form_opts_off(FORM *\fIform\fP, Field_Options \fIopts\fP);
.fi
.SH DESCRIPTION
The function \fBset_form_opts\fP sets all the given form's option bits (form
option bits may be logically-OR'ed together).
.PP
The function \fBform_opts_on\fP turns on the given option bits, and leaves
others alone.
.PP
The function \fBform_opts_off\fP turns off the given option bits, and leaves
others alone.
.PP
The function \fBform_opts\fP returns the form's current option bits.
.PP
The following options are defined (all are on by default):
.TP 5
O_NL_OVERLOAD
Overload the \fBREQ_NEW_LINE\fP forms driver request so that calling it at the
end of a field goes to the next field.
.TP 5
O_BS_OVERLOAD
Overload the \fBREQ_DEL_PREV\fP forms driver request so that calling it at the
beginning of a field goes to the previous field.
.SH RETURN VALUE
Except for \fBform_opts\fP, each routine returns 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 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.
.SH SEE ALSO
\fB\%curses\fP(3X),
\fB\%form\fP(3X)