xref: /minix3/lib/libform/form_field_userptr.3 (revision a0e6850f820f09a03a1da1b4d78f9fafb3b9782f)
1*a0e6850fSThomas Cort.\"	$NetBSD: form_field_userptr.3,v 1.9 2010/03/22 21:58:31 joerg Exp $
2*a0e6850fSThomas Cort.\"
3*a0e6850fSThomas Cort.\" Copyright (c) 2001
4*a0e6850fSThomas Cort.\"	Brett Lymn - blymn@baea.com.au, brett_lymn@yahoo.com.au
5*a0e6850fSThomas Cort.\"
6*a0e6850fSThomas Cort.\" This code is donated to The NetBSD Foundation by the author.
7*a0e6850fSThomas Cort.\"
8*a0e6850fSThomas Cort.\" Redistribution and use in source and binary forms, with or without
9*a0e6850fSThomas Cort.\" modification, are permitted provided that the following conditions
10*a0e6850fSThomas Cort.\" are met:
11*a0e6850fSThomas Cort.\" 1. Redistributions of source code must retain the above copyright
12*a0e6850fSThomas Cort.\"    notice, this list of conditions and the following disclaimer.
13*a0e6850fSThomas Cort.\" 2. Redistributions in binary form must reproduce the above copyright
14*a0e6850fSThomas Cort.\"    notice, this list of conditions and the following disclaimer in the
15*a0e6850fSThomas Cort.\"    documentation and/or other materials provided with the distribution.
16*a0e6850fSThomas Cort.\" 3. The name of the Author may not be used to endorse or promote
17*a0e6850fSThomas Cort.\"    products derived from this software without specific prior written
18*a0e6850fSThomas Cort.\"    permission.
19*a0e6850fSThomas Cort.\"
20*a0e6850fSThomas Cort.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
21*a0e6850fSThomas Cort.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22*a0e6850fSThomas Cort.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23*a0e6850fSThomas Cort.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
24*a0e6850fSThomas Cort.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25*a0e6850fSThomas Cort.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26*a0e6850fSThomas Cort.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27*a0e6850fSThomas Cort.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28*a0e6850fSThomas Cort.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29*a0e6850fSThomas Cort.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30*a0e6850fSThomas Cort.\" SUCH DAMAGE.
31*a0e6850fSThomas Cort.\"
32*a0e6850fSThomas Cort.Dd January 1, 2001
33*a0e6850fSThomas Cort.Dt FORMS 3
34*a0e6850fSThomas Cort.Os
35*a0e6850fSThomas Cort.Sh NAME
36*a0e6850fSThomas Cort.Nm field_userptr ,
37*a0e6850fSThomas Cort.Nm set_field_userptr
38*a0e6850fSThomas Cort.Nd form library
39*a0e6850fSThomas Cort.Sh LIBRARY
40*a0e6850fSThomas Cort.Lb libform
41*a0e6850fSThomas Cort.Sh SYNOPSIS
42*a0e6850fSThomas Cort.In form.h
43*a0e6850fSThomas Cort.Ft void *
44*a0e6850fSThomas Cort.Fn field_userptr "FIELD *field"
45*a0e6850fSThomas Cort.Ft int
46*a0e6850fSThomas Cort.Fn set_field_userptr "FIELD *field" "void *ptr"
47*a0e6850fSThomas Cort.Sh DESCRIPTION
48*a0e6850fSThomas CortThe
49*a0e6850fSThomas Cort.Fn field_userptr
50*a0e6850fSThomas Cortfunction returns the pointer to the user defined data for the field,
51*a0e6850fSThomas Cortthis pointer may be set by calling the
52*a0e6850fSThomas Cort.Fn set_field_userptr
53*a0e6850fSThomas Cortfunction.
54*a0e6850fSThomas Cort.Sh RETURN VALUES
55*a0e6850fSThomas CortFunctions returning pointers will return
56*a0e6850fSThomas Cort.Dv NULL
57*a0e6850fSThomas Cortif an error is detected.
58*a0e6850fSThomas CortThe functions that return an int will return one of the following error
59*a0e6850fSThomas Cortvalues:
60*a0e6850fSThomas Cort.Pp
61*a0e6850fSThomas Cort.Bl -tag -width E_UNKNOWN_COMMAND -compact
62*a0e6850fSThomas Cort.It Er E_OK
63*a0e6850fSThomas CortThe function was successful.
64*a0e6850fSThomas Cort.El
65*a0e6850fSThomas Cort.Sh SEE ALSO
66*a0e6850fSThomas Cort.Xr curses 3 ,
67*a0e6850fSThomas Cort.Xr forms 3
68*a0e6850fSThomas Cort.Sh NOTES
69*a0e6850fSThomas CortThe header
70*a0e6850fSThomas Cort.In form.h
71*a0e6850fSThomas Cortautomatically includes both
72*a0e6850fSThomas Cort.In curses.h
73*a0e6850fSThomas Cortand
74*a0e6850fSThomas Cort.In eti.h .
75