$NetBSD: form_field_userptr.3,v 1.9 2010/03/22 21:58:31 joerg Exp $ Copyright (c) 2001 Brett Lymn - blymn (at] baea.com.au, brett_lymn (at] yahoo.com.au This code is donated to The NetBSD Foundation by the author. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The name of the Author may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE..Dd January 1, 2001
.Dt FORMS 3
.Os
.Sh NAME
.Nm field_userptr ,
.Nm set_field_userptr
.Nd form library
.Sh LIBRARY
.Lb libform
.Sh SYNOPSIS
n form.h .Ft void *
.Fn field_userptr "FIELD *field"
.Ft int
.Fn set_field_userptr "FIELD *field" "void *ptr"
.Sh DESCRIPTION
The
.Fn field_userptr
function returns the pointer to the user defined data for the field,
this pointer may be set by calling the
.Fn set_field_userptr
function.
.Sh RETURN VALUES
Functions returning pointers will return
.Dv NULL
if an error is detected.
The functions that return an int will return one of the following error
values:
p
l -tag -width E_UNKNOWN_COMMAND -compact t Er E_OK The function was successful.
.El
.Sh SEE ALSO
.Xr curses 3 ,
.Xr forms 3
.Sh NOTES
The header
n form.h automatically includes both
n curses.h and
n eti.h .