form_page(3X)                                       form_page(3X)

NAME
       form_page - set and get form page number

SYNOPSIS
       #include <form.h>
       int set_current_field(FORM *form, FIELD *field);
       FIELD *current_field(const FORM *);
       int set_form_page(FORM *form, int n);
       int form_page(const FORM *form);
       int field_index(const FIELD *field);

DESCRIPTION
       The  function  set_current field sets the current field of
       the given form; current_field returns the current field of
       the given form.

       The  function  set_form_page  sets  the form's page number
       (goes to page n of the form).

       The function form_page returns  the  form's  current  page
       number.

       The function field_index returns the index of the field in
       the field array of the form it is connected to. It returns
       ERR  if  the  argument is the null pointer or the field is
       not connected.

RETURN VALUE
       Except for form_page, each routine returns one of the fol-
       lowing:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
            System error occurred (see errno).

       E_BAD_ARGUMENT
            Routine  detected  an incorrect or out-of-range argu-
            ment.

       E_BAD_STATE
            Routine was called from an initialization or termina-
            tion function.

       E_INVALID_FIELD
            Contents of a field are not valid.

       E_REQUEST_DENIED
            The form driver could not process the request.

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 supported on Version 7 or BSD versions.

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

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