.\"	$NetBSD: form_field_userptr.3,v 1.1 2001/07/08 12:10:29 blymn Exp $
.\"
.\" Copyright (c) 2001
.\"	Brett Lymn - blymn@baea.com.au, brett_lymn@yahoo.com.au
.\"
.\" This code is donated to The NetBSD Foundation by the author.
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.Dd January, 2001
.Dt FORMS 3
.Os 
.Sh NAME
.Nm field_userptr ,
.Nm set_field_userptr
.Nd form library
.Sh LIBRARY
.Lb libform
.Sh SYNOPSIS
.Fd #include <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 NULL if an error is detected.
The functions that return an int will return one of the following error
values:
.Pp
.Bl -tag -width E_UNKNOWN_COMMAND -compact
.It Er E_OK
The function was successful.
.El
.Sh SEE ALSO
.Xr curses 3 ,
.Xr forms 3
.Sh NOTES
The header
.Pa <form.h>
automatically includes both
.Pa <curses.h>
and
.Pa <eti.h> .