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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>mvcur</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_001_009_156"> </a>NAME</h4><blockquote>mvcur - output cursor movement commands to the terminal</blockquote><h4><a name = "tag_001_009_157"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="curses.h.html">curses.h</a>>int mvcur(int <i>oldrow</i>, int <i>oldcol</i>, int <i>newrow</i>, int <i>newcol</i>);</code></pre></blockquote><h4><a name = "tag_001_009_158"> </a>DESCRIPTION</h4><blockquote>The<i>mvcur()</i>function outputs one or more commands to the terminal that move the terminal'scursor to (<i>newrow</i>, <i>newcol</i>), an absolute position on the terminalscreen. The (<i>oldrow</i>, <i>oldcol</i>) arguments specify the former cursorposition. Specifying the former position is necessary on terminals that donot provide coordinate-based movement commands. On terminals that providethese commands, Cursesmay select a more efficient way to move the cursor based on the formerposition. If (<i>newrow</i>, <i>newcol</i>) is not a valid address for theterminal in use,<i>mvcur()</i>fails. If (<i>oldrow</i>, <i>oldcol</i>) is the same as (<i>newrow</i>,<i>newcol</i>), then<i>mvcur()</i>succeeds without taking any action. If<i>mvcur()</i>outputs a cursor movement command, it updates its information concerning thelocation of the cursor on the terminal.</blockquote><h4><a name = "tag_001_009_159"> </a>RETURN VALUE</h4><blockquote>Upon successful completion,<i>mvcur()</i>returns OK.Otherwise, it returns ERR.</blockquote><h4><a name = "tag_001_009_160"> </a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_001_009_161"> </a>APPLICATION USAGE</h4><blockquote>After use of<i>mvcur()</i>,the model Cursesmaintains of the state of the terminal might not match the actual state of theterminal. The application should touch and refresh the window before resumingconventional use of Curses.</blockquote><h4><a name = "tag_001_009_162"> </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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