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Manual Pages  — form_field

NAME

form_field - make and break connections between fields and forms

CONTENTS

SYNOPSIS

#include <form.h>

int set_form_fields(FORM *form, FIELD **fields); FIELD **form_fields(const FORM *form); int field_count(const FORM *form); int move_field(FIELD *field, int frow, int fcol);

DESCRIPTION

The function set_form_fields changes the field pointer array of the given form. The array must be terminated by a NULL.

The function form_fields returns the field array of the given form.

The function field_count returns the count of fields in form.

The function move_field moves the given field (which must be disconnected) to a specified location on the screen.

RETURN VALUE

The function form_fields returns a pointer (which may be NULL). It does not set errno.

The function field_count returns ERR if the form parameter is NULL.

The functions set_form_fields and move_field return one of the following codes on error:
E_OK The routine succeeded.
E_BAD_ARGUMENT
  Routine detected an incorrect or out-of-range argument.
E_CONNECTED
  The field is already connected to a form.
E_POSTED
  The form is already posted.
E_SYSTEM_ERROR
  System error occurred (see errno(3)).

PORTABILITY

These routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.

The SVr4 forms library documentation specifies the field_count error value as -1 (which is the value of ERR).

AUTHORS

Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond.

SEE ALSO

 curses(3X),  form(3X)

2024-03-16 form_field (3X) ncurses 6.5

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