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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>add_wch</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_180"> </a>NAME</h4><blockquote>add_wch, mvadd_wch, mvwadd_wch, wadd_wch- add a complex character and rendition to a window</blockquote><h4><a name = "tag_002_001_181"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="curses.h.html">curses.h</a>>int add_wch(const cchar_t *<i>wch</i>);int wadd_wch(WINDOW *<i>win</i>, const cchar_t *<i>wch</i>);int mvadd_wch(int <i>y</i>, int <i>x</i>, const cchar_t *<i>wch</i>);int mvwadd_wch(WINDOW *<i>win</i>, int <i>y</i>, int <i>x</i>, const cchar_t *<i>wch</i>);</code></pre></blockquote><h4><a name = "tag_002_001_182"> </a>DESCRIPTION</h4><blockquote>These functions add information to the current or specified window at thecurrent or specified position, and then advance the cursor. Thesefunctions perform wrapping. These functions perform special-characterprocessing.<ul><p><li>If <i>wch</i> refers to a spacing character, then any previous character atthat location is removed, a new character specified by <i>wch</i> is placed atthat location with rendition specified by <i>wch</i>; then the cursor advancesto the next spacing character on the screen.<p><li>If <i>wch</i> refers to a non-spacing character,all previous characters at that location are preserved, the non-spacingcharacters of <i>wch</i> are added to the spacing complex character, andthe rendition specified by <i>wch</i> is ignored.<p></ul></blockquote><h4><a name = "tag_002_001_183"> </a>RETURN VALUE</h4><blockquote>Upon successful completion, these functions return OK. Otherwise, they returnERR.</blockquote><h4><a name = "tag_002_001_184"> </a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_002_001_185"> </a>SEE ALSO</h4><blockquote><xref href=wrendition><a href="intov.html#tag_001_004_004">Rendition of Characters Placed into a Window</a></xref>,<i><a href="addch.html">addch()</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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