.\"***************************************************************************
-.\" Copyright 2018-2022,2023 Thomas E. Dickey *
+.\" Copyright 2018-2023,2024 Thomas E. Dickey *
.\" Copyright 1999-2010,2016 Free Software Foundation, Inc. *
.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\"
.\" Author: Thomas E. Dickey 1999-on
.\"
-.\" $Id: curs_extend.3x,v 1.40 2023/10/07 21:19:07 tom Exp $
-.TH curs_extend 3X 2023-10-07 "ncurses 6.4" "Library calls"
+.\" $Id: curs_extend.3x,v 1.46 2024/03/16 15:35:01 tom Exp $
+.TH curs_extend 3X 2024-03-16 "ncurses @NCURSES_MAJOR@.@NCURSES_MINOR@" "Library calls"
.ie \n(.g \{\
.ds `` \(lq
.ds '' \(rq
.PP
\fBuse_extended_names\fP returns the previous state, allowing you to
save this and restore it.
+.SH EXTENSIONS
+These functions are \fB\%ncurses\fP(3X) extensions,
+and are not found in SVr4
+.IR curses ,
+4.4BSD
+.IR curses ,
+or any other previous curses implementation.
.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 AUTHOR
+Applications employing
+.I \%ncurses
+extensions should condition their use on the visibility of the
+.B \%NCURSES_VERSION
+preprocessor macro.
+.SH AUTHORS
Thomas Dickey.
.SH SEE ALSO
\fB\%curs_getch\fP(3X),