ncursesw-morphos/doc/html/man/legacy_coding.3x.html
Thomas E. Dickey c3b21f65a2 ncurses 6.0 - patch 20161015
+ amend internal use of tputs to consistently use the number of lines
  affected, e.g., for insert/delete character operations.  While
  merging terminfo source early in 1995, several descriptions used the
  "*" proportional delay for these operations, prompting a change in
  doupdate.
+ regenerate llib-* files.
+ regenerate HTML manpages.
+ fix several formatting issues with manual pages.
2016-10-16 00:57:24 +00:00

118 lines
5.5 KiB
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<H1 class="no-header">legacy_coding 3x</H1>
<PRE>
<STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG> <STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
<STRONG>use_legacy_coding</STRONG> - use terminal's default colors
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
<STRONG>int</STRONG> <STRONG>use_legacy_coding(int</STRONG> <STRONG>level);</STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
The <STRONG>use_legacy_coding</STRONG> function is an extension to the
curses library. It allows the caller to change the result
of <STRONG>unctrl</STRONG>, and suppress related checks within the library
that would normally cause nonprinting characters to be
rendered in visible form. This affects only 8-bit charac-
ters.
The <EM>level</EM> parameter controls the result:
0 the library functions normally, rendering non-
printing characters as described in <STRONG>unctrl</STRONG>.
1 the library ignores <STRONG>isprintf</STRONG> for codes in the
range 160-255.
2 the library ignores <STRONG>isprintf</STRONG> for codes in the
range 128-255. It also modifies the output of
<STRONG>unctrl</STRONG>, showing codes in the range 128-159 as
is.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
If the screen has not been initialized, or the <EM>level</EM>
parameter is out of range, the function returns <STRONG>ERR</STRONG>. Oth-
erwise, it returns the previous level: <STRONG>0</STRONG>, <STRONG>1</STRONG> or <STRONG>2</STRONG>.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
This routine is specific to ncurses. It was not supported
on Version 7, BSD or System V implementations. It is rec-
ommended that any code depending on ncurses extensions be
conditioned using NCURSES_VERSION.
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
<STRONG>unctrl</STRONG>.
</PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
Thomas Dickey (to support lynx's font-switching feature).
<STRONG><A HREF="legacy_coding.3x.html">legacy_coding(3x)</A></STRONG>
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<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
<li><a href="#h2-AUTHOR">AUTHOR</a></li>
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