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'\" t
.\"***************************************************************************
.\" Copyright 2018-2022,2023 Thomas E. Dickey *
.\" Copyright 1998-2010,2015 Free Software Foundation, Inc. *
.\" *
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.\" $Id: form_data.3x,v 1.30 2023/11/25 13:58:47 tom Exp $
.TH data 3FORM 2023-11-25 "ncurses 6.4" "Library calls"
.SH NAME
\fBdata_ahead\fP,
\fBdata_behind\fP \-
test for off-screen data in given forms
.SH SYNOPSIS
.nf
\fB#include <form.h>
.PP
\fBbool data_ahead(const FORM *\fIform\fP);
\fBbool data_behind(const FORM *\fIform\fP);
.fi
.SH DESCRIPTION
The function \fBdata_ahead\fP tests whether there is off-screen data
ahead in the given form.
It returns TRUE (1) or FALSE (0).
.PP
The function \fBdata_behind\fP tests whether there is off-screen data
behind in the given form.
It returns TRUE (1) or FALSE (0).
.SH PORTABILITY
These routines emulate the System V forms library.
They were not supported on
Version 7 or BSD versions.
.SH AUTHORS
Juergen Pfeifer.
Manual pages and adaptation for new curses by Eric S. Raymond.
.SH SEE ALSO
\fB\%ncurses\fP(3NCURSES),
\fB\%form\fP(3FORM)
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