ncursesw-morphos/man/form_field.3x
Thomas E. Dickey 5ae2721913 ncurses 5.9 - patch 20121102
+ realign these related pages:
    curs_add_wchstr.3x
    curs_addchstr.3x
    curs_addstr.3x
    curs_addwstr.3x
  and fix a long-ago error in curs_addstr.3x which said that a -1
  length parameter would only write as much as fit onto one line
  (report by Reuben Thomas).
+ remove obsolete fallback _nc_memmove() for memmove()/bcopy().
+ remove obsolete fallback _nc_strdup() for strdup().
+ cancel any debug-rpm in package/ncurses.spec
+ reviewed vte-2012, reverted most of the change since it was incorrect
  based on testing with tack -TD
+ un-cancel the initc in vte-256color, since this was implemented
  starting with version 0.20 in 2009 -TD
2012-11-03 23:59:23 +00:00

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'\" t
.\"***************************************************************************
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.\" $Id: form_field.3x,v 1.11 2012/11/03 23:03:59 tom Exp $
.TH form_field 3X ""
.SH NAME
\fBform_field\fR \- make and break connections between fields and forms
.SH SYNOPSIS
\fB#include <form.h>\fR
.br
int set_form_fields(FORM *form, FIELD **fields);
.br
FIELD **form_fields(const FORM *form);
.br
int field_count(const FORM *form);
.br
int move_field(FIELD *field, int frow, int fcol);
.br
.SH DESCRIPTION
The function \fBset_form_fields\fR changes the field pointer array of
the given \fIform\fR. The array must be terminated by a \fBNULL\fR.
.PP
The function \fBform_fields\fR returns the field array of the given form.
.PP
The function \fBfield_count\fR returns the count of fields in \fIform\fR.
.PP
The function \fBmove_field\fR moves the given field (which must be disconnected)
to a specified location on the screen.
.SH RETURN VALUE
The function \fBform_fields\fR returns a pointer (which may be \fBNULL\fR).
It does not set errno.
.PP
The function \fBfield_count\fR returns \fBERR\fR if the \fIform\fP parameter
is \fBNULL\fP.
.PP
The functions \fBset_form_fields\fR and \fBmove_field\fR return one of
the following codes on error:
.TP 5
.B E_OK
The routine succeeded.
.TP 5
.B E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
.TP 5
.B E_CONNECTED
The field is already connected to a form.
.TP 5
.B E_POSTED
The form is already posted.
.TP 5
.B E_SYSTEM_ERROR
System error occurred (see \fBerrno\fR).
.SH SEE ALSO
\fBcurses\fR(3X), \fBform\fR(3X).
.SH NOTES
The header file \fB<form.h>\fR automatically includes the header file
\fB<curses.h>\fR.
.SH PORTABILITY
These routines emulate the System V forms library. They were not supported on
Version 7 or BSD versions.
.PP
The SVr4 forms library documentation specifies the \fBfield_count\fR error value
as \-1 (which is the value of \fBERR\fR).
.SH AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
S. Raymond.