>> field_count (3) ( Linux man: Библиотечные вызовы )
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 VALUES
The function form_fields returns NULL on error.
The function field_count returns ERR (the general
curses error return value) on error.
The functions set_form_fields and move_field return one of
the following codes on error:
E_OK
The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno).
E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.