form_data(3x)                                             form_data(3x)
       data_ahead,  data_behind  -  test  for  off-screen data in
       given forms
       #include <form.h>
       bool data_ahead(const FORM *form);
       bool data_behind(const FORM *form);
       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).
       curses(3x), form(3x).
       The header file <form.h> automatically includes the header
       file <curses.h>.
       These  routines  emulate the System V forms library.  They
       were not supported on Version 7 or BSD versions.
       Juergen Pfeifer.  Manual  pages  and  adaptation  for  new
       curses by Eric S. Raymond.
                                                          form_data(3x)