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  30   * Author: Thomas E. Dickey
  31   * @Id: legacy_coding.3x,v 1.4 2010/12/04 18:49:20 tom Exp @
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  40 <H1>legacy_coding 3x</H1>
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  42 <PRE>
  43 <!-- Manpage converted by man2html 3.0.1 -->
  44 <STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG>                                     <STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG>
  45
  46
  47
  48
  49 </PRE>
  50 <H2>NAME</H2><PRE>
  51        <STRONG>use_legacy_coding</STRONG> - use terminal's default colors
  52
  53
  54 </PRE>
  55 <H2>SYNOPSIS</H2><PRE>
  56        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
  57
  58        <STRONG>int</STRONG> <STRONG>use_legacy_coding(int</STRONG> <STRONG>level);</STRONG>
  59
  60
  61 </PRE>
  62 <H2>DESCRIPTION</H2><PRE>
  63        The  <EM>use</EM><STRONG>_</STRONG><EM>legacy</EM><STRONG>_</STRONG><EM>coding()</EM>  function  is an extension to the
  64        curses library.  It allows the caller to change the result
  65        of  <STRONG>unctrl</STRONG>, and suppress related checks within the library
  66        that would normally cause  nonprinting  characters  to  be
  67        rendered in visible form.  This affects only 8-bit charac-
  68        ters.
  69
  70        The <EM>level</EM> parameter controls the result:
  71
  72               0    the library functions normally, rendering non-
  73                    printing characters as described in <STRONG>unctrl</STRONG>.
  74
  75               1    the  library ignores <STRONG>isprintf</STRONG> for codes in the
  76                    range 160-255.
  77
  78               2    the library ignores <STRONG>isprintf</STRONG> for codes in  the
  79                    range 128-255.  It also modifies the output of
  80                    <STRONG>unctrl</STRONG>, showing codes in the range 128-159  as
  81                    is.
  82
  83
  84 </PRE>
  85 <H2>RETURN VALUE</H2><PRE>
  86        If  the  screen  has  not  been  initialized, or the <EM>level</EM>
  87        parameter is out of range, the function returns <STRONG>ERR</STRONG>.  Oth-
  88        erwise, it returns the previous level: <STRONG>0</STRONG>, <STRONG>1</STRONG> or <STRONG>2</STRONG>.
  89
  90
  91 </PRE>
  92 <H2>PORTABILITY</H2><PRE>
  93        This routine is specific to ncurses.  It was not supported
  94        on Version 7, BSD or System V implementations.  It is rec-
  95        ommended  that any code depending on ncurses extensions be
  96        conditioned using NCURSES_VERSION.
  97
  98
  99 </PRE>
 100 <H2>SEE ALSO</H2><PRE>
 101        <STRONG>unctrl</STRONG>.
 102
 103
 104 </PRE>
 105 <H2>AUTHOR</H2><PRE>
 106        Thomas Dickey (to support lynx's font-switching feature).
 107
 108
 109
 110                                                       <STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG>
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