X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=man%2Fdefine_key.3x;h=d0dbe7fccaa9e4904074a0bb1a0839f37135ab5b;hp=79a82052e3bf2b158569448099c92ee18d786a7d;hb=152c5a605234b7ea36ba3a03ec07e124bb6aac75;hpb=661078ddbde3ce0f3b06e95642fbb9b5fef7dca1

diff --git a/man/define_key.3x b/man/define_key.3x
index 79a82052..d0dbe7fc 100644
--- a/man/define_key.3x
+++ b/man/define_key.3x
@@ -1,5 +1,6 @@
 .\"***************************************************************************
-.\" Copyright (c) 1998 Free Software Foundation, Inc.                        *
+.\" Copyright 2018,2020 Thomas E. Dickey                                     *
+.\" Copyright 1998-2010,2017 Free Software Foundation, Inc.                  *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *
@@ -26,19 +27,16 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" Author: Thomas E. Dickey <dickey@clark.net> 1997
+.\" Author: Thomas E. Dickey 1997
 .\"
-.\" $Id: define_key.3x,v 1.4 1998/02/11 12:13:48 tom Exp $
+.\" $Id: define_key.3x,v 1.18 2020/10/24 09:52:54 tom Exp $
 .TH define_key 3X ""
-.
 .SH NAME
 \fBdefine_key\fP \- define a keycode
-.
 .SH SYNOPSIS
 \fB#include <curses.h>\fP
-
-\fBint define_key(char *definition, int keycode);\fP
-.
+.sp
+\fBint define_key(const char *\fP\fIdefinition\fP\fB, int \fP\fIkeycode\fP\fB);\fP
 .SH DESCRIPTION
 This is an extension to the curses library.
 It permits an application to define keycodes with their corresponding control
@@ -47,23 +45,22 @@ the predefined codes in the terminfo database.
 .PP
 If the given string is null, any existing definition for the keycode is
 removed.
-.
+Similarly, if the given keycode is negative or zero, any existing string
+for the given definition is removed.
 .SH RETURN VALUE
-The keycode must be greater than zero, else ERR is returned.
-.
+The keycode must be greater than zero, and the string non-null,
+otherwise \fBERR\fP is returned.
+\fBERR\fP may also be returned if there is insufficient memory to allocate the
+data to store the definition.
+If no error is detected, \fBOK\fP 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
+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
-\fBkeyok\fR(3X).
-.
+\fBkeyok\fR(3X),
+\fBkey_defined\fR(3X).
 .SH AUTHOR
 Thomas Dickey.
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End: