form_data – test for off-screen data in given forms

USAGE
       #include <form.h>
       bool data_ahead(const FORM *form);
       bool data_behind(const FORM *form);

DESCRIPTION
       The function data_ahead tests whether there is off-screen data ahead in
       the given form.  It returns TRUE (1) or FALSE (0).

       The function data_behind tests whether there is off-screen data  behind
       in the given form.  It returns TRUE (1) or FALSE (0).

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.

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