1.\"	$NetBSD: form_field_validation.3,v 1.4 2002/02/20 11:30:58 wiz Exp $
2.\"
3.\" Copyright (c) 2001
4.\"	Brett Lymn - blymn@baea.com.au, brett_lymn@yahoo.com.au
5.\"
6.\" This code is donated to The NetBSD Foundation by the author.
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9.\" modification, are permitted provided that the following conditions
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13.\" 2. Redistributions in binary form must reproduce the above copyright
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32.Dd January 1, 2001
33.Dt FORMS 3
34.Os
35.Sh NAME
36.Nm field_arg ,
37.Nm field_type ,
38.Nm set_field_type
39.Nd form library
40.Sh LIBRARY
41.Lb libform
42.Sh SYNOPSIS
43.Fd #include \*[Lt]form.h\*[Gt]
44.Ft char *
45.Fn field_arg "FIELD *field"
46.Ft FIELDTYPE *
47.Fn field_type "FIELD *field"
48.Ft int
49.Fn set_field_type "FIELD *field, FIELDTYPE *type, ..."
50.Sh DESCRIPTION
51The
52.Fn field_arg
53function returns the field type arguments that are associated with the
54given field. The
55.Fn field_type
56function returns the field type structure associated with the given
57field, this type can be set by calling the
58.Fn set_field_type
59function which associates the given field type with the field, the
60third and subsequent parameters are field dependent arguments.
61.Sh RETURN VALUES
62Functions returning pointers will return NULL if an error is detected.
63The functions that return an int will return one of the following error
64values:
65.Pp
66.Bl -tag -width E_UNKNOWN_COMMAND -compact
67.It Er E_OK
68The function was successful.
69.El
70.Sh SEE ALSO
71.Xr curses 3 ,
72.Xr forms 3
73.Sh NOTES
74The header
75.Pa \*[Lt]form.h\*[Gt]
76automatically includes both
77.Pa \*[Lt]curses.h\*[Gt]
78and
79.Pa \*[Lt]eti.h\*[Gt] .
80