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****************************************************************************
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2011-01-09 09:17:12 +08:00
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* Copyright (c) 2005-2006,2010 Free Software Foundation, Inc. *
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2006-12-18 12:32:42 +08:00
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* authorization. *
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****************************************************************************
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* Author: Thomas E. Dickey
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* @Id: legacy_coding.3x,v 1.4 2010/12/04 18:49:20 tom Exp @
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<HTML>
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<HEAD>
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<TITLE>legacy_coding 3x</TITLE>
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<link rev=made href="mailto:bug-ncurses@gnu.org">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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</HEAD>
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<BODY>
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<H1>legacy_coding 3x</H1>
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<HR>
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<PRE>
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<!-- Manpage converted by man2html 3.0.1 -->
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<STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG> <STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG>
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</PRE>
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<H2>NAME</H2><PRE>
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<STRONG>use_legacy_coding</STRONG> - use terminal's default colors
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</PRE>
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<H2>SYNOPSIS</H2><PRE>
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<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
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<STRONG>int</STRONG> <STRONG>use_legacy_coding(int</STRONG> <STRONG>level);</STRONG>
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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The <EM>use</EM><STRONG>_</STRONG><EM>legacy</EM><STRONG>_</STRONG><EM>coding()</EM> function is an extension to the
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curses library. It allows the caller to change the result
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of <STRONG>unctrl</STRONG>, and suppress related checks within the library
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that would normally cause nonprinting characters to be
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rendered in visible form. This affects only 8-bit charac-
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ters.
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The <EM>level</EM> parameter controls the result:
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0 the library functions normally, rendering non-
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printing characters as described in <STRONG>unctrl</STRONG>.
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2006-12-24 10:11:39 +08:00
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1 the library ignores <STRONG>isprintf</STRONG> for codes in the
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range 160-255.
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2006-12-24 10:11:39 +08:00
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2 the library ignores <STRONG>isprintf</STRONG> for codes in the
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range 128-255. It also modifies the output of
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<STRONG>unctrl</STRONG>, showing codes in the range 128-159 as
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is.
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</PRE>
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<H2>RETURN VALUE</H2><PRE>
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If the screen has not been initialized, or the <EM>level</EM>
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parameter is out of range, the function returns <STRONG>ERR</STRONG>. Oth-
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erwise, it returns the previous level: <STRONG>0</STRONG>, <STRONG>1</STRONG> or <STRONG>2</STRONG>.
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</PRE>
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<H2>PORTABILITY</H2><PRE>
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This routine is specific to ncurses. It was not supported
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on Version 7, BSD or System V implementations. It is rec-
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ommended that any code depending on ncurses extensions be
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conditioned using NCURSES_VERSION.
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</PRE>
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<H2>SEE ALSO</H2><PRE>
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<STRONG>unctrl</STRONG>.
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</PRE>
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<H2>AUTHOR</H2><PRE>
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2011-01-09 09:17:12 +08:00
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Thomas Dickey (to support lynx's font-switching feature).
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2006-12-18 12:32:42 +08:00
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<STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG>
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</PRE>
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<HR>
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<ADDRESS>
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Man(1) output converted with
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<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
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