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* Author: Thomas E. Dickey 1997
* @Id: keyok.3x,v 1.51 2025/10/04 20:59:08 tom Exp @
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<H1 class="no-header">keyok 3x 2025-10-04 ncurses 6.6 Library calls</H1>
<PRE>
<STRONG><A HREF="keyok.3x.html">keyok(3x)</A></STRONG> Library calls <STRONG><A HREF="keyok.3x.html">keyok(3x)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
<STRONG>keyok</STRONG> - enable or disable an <EM>ncurses</EM> function key code
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
<STRONG>int</STRONG> <STRONG>keyok(int</STRONG> <EM>key-code</EM><STRONG>,</STRONG> <STRONG>bool</STRONG> <EM>bf</EM><STRONG>);</STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
The <STRONG>keyok</STRONG> <EM>ncurses</EM> extension permits a <EM>curses</EM> application to disable a
function key <EM>key-code</EM> returned by <STRONG><A HREF="curs_getch.3x.html">wgetch(3x)</A></STRONG> (wide-character API users:
<STRONG><A HREF="curs_get_wch.3x.html">wget_wch(3x)</A></STRONG>). Key codes that have been disabled can be re-enabled.
<EM>bf</EM> selects the desired enablement status. This operation is more fine-
grained than calling <STRONG><A HREF="curs_inopts.3x.html">keypad(3x)</A></STRONG>, which affects <EM>all</EM> function keys.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
<STRONG>keyok</STRONG> returns <STRONG>ERR</STRONG> if
<STRONG>o</STRONG> <EM>key-code</EM> is nonpositive,
<STRONG>o</STRONG> <EM>key-code</EM> is not a recognized value, or
<STRONG>o</STRONG> enablement of <EM>key-code</EM> is already in the desired state.
Otherwise, <STRONG>keyok</STRONG> returns <STRONG>OK</STRONG>.
</PRE><H2><a name="h2-EXTENSIONS">EXTENSIONS</a></H2><PRE>
<STRONG>keyok</STRONG> is an <EM>ncurses</EM> extension.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
Applications employing <EM>ncurses</EM> extensions should condition their use on
the visibility of the <STRONG>NCURSES_VERSION</STRONG> preprocessor macro.
NetBSD <EM>curses</EM> since 2.0 (2004) supports <EM>keyok</EM>.
</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
Thomas Dickey
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG>, <STRONG><A HREF="keybound.3x.html">keybound(3x)</A></STRONG>, <STRONG><A HREF="keyok.3x.html">keyok(3x)</A></STRONG>, <STRONG><A HREF="key_defined.3x.html">key_defined(3x)</A></STRONG>
ncurses 6.6 2025-10-04 <STRONG><A HREF="keyok.3x.html">keyok(3x)</A></STRONG>
</PRE>
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