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+ * Copyright 2018-2023,2024 Thomas E. Dickey *
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* Author: Thomas E. Dickey 1997
- * @Id: define_key.3x,v 1.14 2010/12/04 18:49:20 tom Exp @
+ * @Id: define_key.3x,v 1.42 2024/03/16 15:35:01 tom Exp @
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-<H1 class="no-header">define_key 3x</H1>
+<H1 class="no-header">define_key 3x 2024-03-16 ncurses 6.4 Library calls</H1>
<PRE>
-<STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG> <STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG>
+<STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG> Library calls <STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
- <STRONG>define_key</STRONG> - define a keycode
+ <STRONG>define_key</STRONG> - define a <EM>curses</EM> keycode
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
- <STRONG>int</STRONG> <STRONG>define_key(const</STRONG> <STRONG>char</STRONG> <STRONG>*definition,</STRONG> <STRONG>int</STRONG> <STRONG>keycode);</STRONG>
+ <STRONG>int</STRONG> <STRONG>define_key(const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>definition</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>keycode</EM><STRONG>);</STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
- This is an extension to the curses library. It permits an
- application to define keycodes with their corresponding
- control strings, so that the ncurses library will inter-
- pret them just as it would the predefined codes in the
- terminfo database.
+ This is an extension to the <EM>curses</EM> library. It permits an application
+ to define keycodes with their corresponding control strings, so that
+ the <EM>ncurses</EM> library will interpret them just as it would the predefined
+ codes in the terminfo database.
- 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.
+ If <EM>definition</EM> is <STRONG>NULL</STRONG>, any existing one for the keycode is removed.
+ Similarly, if the given keycode is negative or zero, any existing
+ string for the given definition is removed.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
- The keycode must be greater than zero, and the string non-
- null, otherwise ERR is returned. ERR may also be returned
- if there is insufficient memory to allocate the data to
- store the definition. If no error is detected, OK is
- returned.
+ Either <EM>keycode</EM> must be greater than zero, or <EM>definition</EM> must be non-
+ <STRONG>NULL</STRONG>, otherwise <STRONG>ERR</STRONG> is returned. <STRONG>ERR</STRONG> may also be returned if there is
+ insufficient memory to allocate the data to store the definition. If
+ no error is detected, <STRONG>OK</STRONG> is returned.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
- 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 con-
- ditioned using NCURSES_VERSION.
+ These routines are specific to <EM>ncurses</EM>. They were not supported on
+ Version 7, BSD or System V implementations. It is recommended that any
+ code depending on them be conditioned using <STRONG>NCURSES_VERSION</STRONG>.
-</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
- <STRONG><A HREF="keyok.3x.html">keyok(3x)</A></STRONG>, <STRONG><A HREF="key_defined.3x.html">key_defined(3x)</A></STRONG>.
+</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
+ Thomas Dickey
-</PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
- Thomas Dickey.
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
+ <STRONG><A HREF="keyok.3x.html">keyok(3x)</A></STRONG>, <STRONG><A HREF="key_defined.3x.html">key_defined(3x)</A></STRONG>
- <STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG>
+ncurses 6.4 2024-03-16 <STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG>
</PRE>
<div class="nav">
<ul>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
+<li><a href="#h2-AUTHORS">AUTHORS</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
-<li><a href="#h2-AUTHOR">AUTHOR</a></li>
</ul>
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