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.\"***************************************************************************
.\" Copyright (c) 2003-2004,2006 Free Software Foundation, Inc.              *
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.\"
.\" Author: Thomas E. Dickey 2003
.\"
.\" $Id: key_defined.3x,v 1.4 2006/02/25 21:50:01 tom Exp $
.TH key_defined 3X ""
.SH NAME
\fBkey_defined\fP \- check if a keycode is defined
.SH SYNOPSIS
\fB#include <curses.h>\fP
.sp
\fBint key_defined(const char *definition);\fP
.SH DESCRIPTION
This is an extension to the curses library.
It permits an application to determine if a string is currently bound
to any keycode.
.SH RETURN VALUE
If the string is bound to a keycode, its value (greater than zero) is returned.
If no keycode is bound, zero is returned.
If the string conflicts with longer strings which are bound to keys, -1 is returned.
.SH PORTABILITY
These routines are specific to ncurses.  They were not supported on
Version 7, BSD or System V implementations.  It is recommended that
any code depending on them be conditioned using NCURSES_VERSION.
.SH SEE ALSO
\fBdefine_key\fR(3X).
.SH AUTHOR
Thomas Dickey.
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