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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>syncok</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_645"> </a>NAME</h4><blockquote>syncok, wcursyncup, wsyncdown, wsyncup - synchronise a window with itsparents or children</blockquote><h4><a name = "tag_002_001_646"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="curses.h.html">curses.h</a>>int syncok(WINDOW *<i>win</i>, bool <i>bf</i>);void wcursyncup(WINDOW *<i>win</i>);void wsyncdown(WINDOW *<i>win</i>);void wsyncup(WINDOW *<i>win</i>);</code></pre></blockquote><h4><a name = "tag_002_001_647"> </a>DESCRIPTION</h4><blockquote>The<i>syncok()</i>function determines whether all ancestors of the specified windoware implicitly touched whenever there is a change in the window.If <i>bf</i> is TRUE, such implicit touching occurs.If <i>bf</i> is FALSE, such implicit touching does not occur.The initial state is FALSE.<p>The<i>wcursyncup()</i>function updates the current cursor position of the ancestors of <i>win</i>to reflect the current cursor position of <i>win</i>.<p>The<i>wsyncdown()</i>function touches <i>win</i> if any ancestor window has been touched.<p>The<i>wsyncup()</i>function unconditionally touches all ancestors of <i>win</i>.</blockquote><h4><a name = "tag_002_001_648"> </a>RETURN VALUE</h4><blockquote>Upon successful completion,<i>syncok()</i>returns OK. Otherwise, it returns ERR.<p>The other functions do not return a value.</blockquote><h4><a name = "tag_002_001_649"> </a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_002_001_650"> </a>APPLICATION USAGE</h4><blockquote>Applications seldom call<i>wsyncdown()</i>because it is called by all refresh operations.</blockquote><h4><a name = "tag_002_001_651"> </a>SEE ALSO</h4><blockquote><i><a href="doupdate.html">doupdate()</a></i>,<i><a href="is_linetouched.html">is_linetouched()</a></i>,<i><a href="curses.h.html"><curses.h></a></i>.</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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