# form_field 3x 2024-03-16 ncurses 6.5 Library calls

    form_field(3x)                   Library calls                  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
           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)

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