# form_field 3x

    form_field(3x)                                                  form_field(3x)

## NAME

           form_field - make and break connections between fields and forms

## 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  discon-
           nected) 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  follow-
           ing 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).

## SEE ALSO

           curses(3x), form(3x).

## NOTES

           The  header  file  <form.h>  automatically  includes  the  header  file
           <curses.h>.

## PORTABILITY

           These routines emulate the System V forms library.  They were not  sup-
           ported 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.

                                                                    form_field(3x)