105 lines
3.3 KiB
Groff
105 lines
3.3 KiB
Groff
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.\" $NetBSD: form_opts.3,v 1.10 2010/03/22 21:58:31 joerg Exp $
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.\"
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.\" Copyright (c) 2001
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.\" Brett Lymn - blymn@baea.com.au, brett_lymn@yahoo.com.au
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.\"
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.\" This code is donated to The NetBSD Foundation by the author.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. The name of the Author may not be used to endorse or promote
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.\" products derived from this software without specific prior written
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.\" permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd January 1, 2001
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.Dt FORMS 3
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.Os
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.Sh NAME
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.Nm form_opts ,
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.Nm form_opts_off ,
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.Nm form_opts_on ,
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.Nm set_form_opts
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.Nd form library
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.Sh LIBRARY
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.Lb libform
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.Sh SYNOPSIS
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.In form.h
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.Ft Form_Options
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.Fn form_opts "FORM *form"
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.Ft int
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.Fn form_opts_off "FORM *form" "Form_Options options"
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.Ft int
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.Fn form_opts_on "FORM *form" "Form_Options options"
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.Ft int
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.Fn set_form_opts "FORM *form" "Form_Options options"
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.Sh DESCRIPTION
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The function
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.Fn form_opts
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returns the current options that are set on the given form.
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The
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.Fn form_opts_off
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will turn off the form options given in
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.Fa options
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for the form, similarly,
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.Fn form_opts_on
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will turn on the options specified in
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.Fa options
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for the given form.
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The form options can be set to an explicit set by calling
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.Fn set_form_opts .
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.Sh PARAMETERS
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The following form options are valid:
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.Pp
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.Bl -tag -width O_BS_OVERLOAD -compact
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.It O_BS_OVERLOAD
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If this option is set and the cursor is at the first character in the
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field then the backspace character will perform the same function as a
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REQ_PREV_FIELD driver request, moving to the previous field in the
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form.
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.It O_NL_OVERLOAD
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If this option is set and the cursor is at the end of the field then
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the new line character will perform the same function as a
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REQ_NEXT_FIELD driver request, moving to the next field in the form.
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.El
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.Pp
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By default no form options are set.
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.Sh RETURN VALUES
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Functions returning pointers will return
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.Dv NULL
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if an error is detected.
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The functions that return an int will return one of the following error
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values:
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.Pp
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.Bl -tag -width E_UNKNOWN_COMMAND -compact
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.It Er E_OK
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The function was successful.
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.El
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.Sh SEE ALSO
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.Xr curses 3 ,
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.Xr forms 3
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.Sh NOTES
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The header
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.In form.h
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automatically includes both
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.In curses.h
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and
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.In eti.h .
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