use_env.html

来自「unix 下的C开发手册,还用详细的例程。」· HTML 代码 · 共 58 行

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>use_env</title></head><body bgcolor=white><center><font size=2>The Single UNIX &reg; Specification, Version 2<br>Copyright &copy; 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_002_001_117">&nbsp;</a>NAME</h4><blockquote>use_env - specify source of screen size information</blockquote><h4><a name = "tag_002_001_118">&nbsp;</a>SYNOPSIS</h4><blockquote><pre><code>#include &lt;<a href="curses.h.html">curses.h</a>&gt;void use_env(bool <i>boolval</i>);</code></pre></blockquote><h4><a name = "tag_002_001_119">&nbsp;</a>DESCRIPTION</h4><blockquote>The<i>use_env()</i>function specifies the technique by which theimplementation determines the size of the screen.  If <i>boolval</i> is FALSE,the implementation uses the values of <i>lines</i> and <i>columns</i> specifiedin the <b>terminfo</b> database.  If <i>boolval</i> is TRUE, the implementation usestheandenvironment variables.  The initial value is TRUE.<p>Any call to<i>use_env()</i>must precede calls to<i><a href="initscr.html">initscr()</a></i>,<i><a href="newterm.html">newterm()</a></i>or<i><a href="setupterm.html">setupterm()</a></i>.</blockquote><h4><a name = "tag_002_001_120">&nbsp;</a>RETURN VALUE</h4><blockquote>The function does not return a value.</blockquote><h4><a name = "tag_002_001_121">&nbsp;</a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_002_001_122">&nbsp;</a>SEE ALSO</h4><blockquote><i><a href="del_curterm.html">del_curterm()</a></i>,<i><a href="initscr.html">initscr()</a></i>,<i><a href="curses.h.html">&lt;curses.h&gt;</a></i>.</blockquote><hr size=2 noshade><center><font size=2>UNIX &reg; is a registered Trademark of The Open Group.<br>Copyright &copy; 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>

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