osx man page for data_ahead

form_data(3X)															     form_data(3X)

NAME
       form_data - test for off-screen data in given forms

SYNOPSIS
       #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 supported on Version 7 or BSD versions.

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

																     form_data(3X)