wtimeout.html
来自「unix 下的C开发手册,还用详细的例程。」· HTML 代码 · 共 84 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>notimeout</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_002_001_652"> </a>NAME</h4><blockquote>notimeout, timeout, wtimeout - control blocking on input</blockquote><h4><a name = "tag_002_001_653"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="curses.h.html">curses.h</a>>int notimeout(WINDOW *<i>win</i>, bool <i>bf</i>);void timeout(int <i>delay</i>);void wtimeout(WINDOW *<i>win</i>, int <i>delay</i>);</code></pre></blockquote><h4><a name = "tag_002_001_654"> </a>DESCRIPTION</h4><blockquote>The<i>notimeout()</i>function specifies whether Timeout Mode or No Timeout Mode is in effect forthe screen associated with the specified window.If <i>bf</i> is TRUE, this screen is set to No Timeout Mode.If <i>bf</i> is FALSE, this screen is set to Timeout Mode.The initial state is FALSE.<p>The<i><a href="timeout.html">timeout()</a></i>and<i>wtimeout()</i>functions set blocking or non-blocking read for the current or specified windowbased on the value of <i>delay</i>:<dl compact><dt><i>delay</i> < 0<dd>One or more blocking reads (indefinite waits for input) are used.<dt><i>delay</i> = 0<dd>One or more non-blocking reads are used. Any Cursesinput function will failif every character of the requested string is not immediately available.<dt><i>delay</i> > 0<dd>Any Curses input function blocks for <i>delay</i> milliseconds and fails ifthere is still no input.</dl></blockquote><h4><a name = "tag_002_001_655"> </a>RETURN VALUE</h4><blockquote>Upon successful completion, the<i>notimeout()</i>function returns OK. Otherwise, it returns ERR.<p>The<i><a href="timeout.html">timeout()</a></i>and<i>wtimeout()</i>functions do not return a value.</blockquote><h4><a name = "tag_002_001_656"> </a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_002_001_657"> </a>SEE ALSO</h4><blockquote><xref href=terminalinput><a href="intov.html#tag_001_005">Input Processing</a></xref>,<i><a href="getch.html">getch()</a></i>,<i><a href="halfdelay.html">halfdelay()</a></i>,<i><a href="nodelay.html">nodelay()</a></i>,<i><a href="curses.h.html"><curses.h></a></i>,<b>XBD</b> specification, <a href="../xbd/termios.html#tag_008_002"><b>Parameters that Can be Set</b> </a> .</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 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>⌨️ 快捷键说明
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