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| * @Id: legacy_coding.3x,v 1.7 2020/02/02 23:34:34 tom Exp @ |
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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> - override locale-encoding checks |
| |
| |
| </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE> |
| <STRONG>#include</STRONG> <STRONG><curses.h></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 |
| characters. |
| |
| The <EM>level</EM> parameter controls the result: |
| |
| 0 the library functions normally, rendering nonprinting char- |
| acters 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>. Otherwise, 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 recommended 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> |
| </PRE> |
| <div class="nav"> |
| <ul> |
| <li><a href="#h2-NAME">NAME</a></li> |
| <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li> |
| <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-SEE-ALSO">SEE ALSO</a></li> |
| <li><a href="#h2-AUTHOR">AUTHOR</a></li> |
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