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3 .\" Copyright 2018-2019,2020 Thomas E. Dickey *
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31 .\" $Id: form_field.3x,v 1.14 2020/02/02 23:34:34 tom Exp $
34 \fBform_field\fR \- make and break connections between fields and forms
36 \fB#include <form.h>\fR
38 int set_form_fields(FORM *form, FIELD **fields);
40 FIELD **form_fields(const FORM *form);
42 int field_count(const FORM *form);
44 int move_field(FIELD *field, int frow, int fcol);
47 The function \fBset_form_fields\fR changes the field pointer array of
48 the given \fIform\fR. The array must be terminated by a \fBNULL\fR.
50 The function \fBform_fields\fR returns the field array of the given form.
52 The function \fBfield_count\fR returns the count of fields in \fIform\fR.
54 The function \fBmove_field\fR moves the given field (which must be disconnected)
55 to a specified location on the screen.
57 The function \fBform_fields\fR returns a pointer (which may be \fBNULL\fR).
58 It does not set errno.
60 The function \fBfield_count\fR returns \fBERR\fR if the \fIform\fP parameter
63 The functions \fBset_form_fields\fR and \fBmove_field\fR return one of
64 the following codes on error:
67 The routine succeeded.
70 Routine detected an incorrect or out-of-range argument.
73 The field is already connected to a form.
76 The form is already posted.
79 System error occurred (see \fBerrno\fR(3)).
81 \fBcurses\fR(3X), \fBform\fR(3X).
83 The header file \fB<form.h>\fR automatically includes the header file
86 These routines emulate the System V forms library.
87 They were not supported on
88 Version 7 or BSD versions.
90 The SVr4 forms library documentation specifies the \fBfield_count\fR error value
91 as \-1 (which is the value of \fBERR\fR).
94 Manual pages and adaptation for new curses by Eric S. Raymond.