'\" t
.\" $OpenBSD: form_data.3,v 1.13 2023/10/17 09:52:10 nicm Exp $
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.\" $Id: form_data.3,v 1.13 2023/10/17 09:52:10 nicm Exp $
.TH form_data 3 2023-07-01 "ncurses 6.4" "Library calls"
.SH NAME
\fBdata_ahead\fP,
\fBdata_behind\fP \- test for off-screen data in given forms
.SH SYNOPSIS
\fB#include <form.h>\fP
.sp
\fBbool data_ahead(const FORM *\fIform\fB);\fR
.br
\fBbool data_behind(const FORM *\fIform\fB);\fR
.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 SEE ALSO
\fBcurses\fP(3), \fBform\fP(3).
.SH NOTES
The header file \fB<form.h>\fP automatically includes the header file
\fB<curses.h>\fP.
.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.