📄 erasewchar.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>erasechar</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_054"> </a>NAME</h4><blockquote>erasechar, erasewchar, killchar, killwchar- terminal environment query functions</blockquote><h4><a name = "tag_001_009_055"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="curses.h.html">curses.h</a>>char erasechar(void);int erasewchar(wchar_t *<i>ch</i>);char killchar(void);int killwchar(wchar_t *<i>ch</i>);</code></pre></blockquote><h4><a name = "tag_001_009_056"> </a>DESCRIPTION</h4><blockquote>The<i>erasechar()</i>function returns the current erase character. The<i>erasewchar()</i>function stores the current erase character in the object pointed to by<i>ch</i>. If no erase character has been defined, the function will fail andthe object pointed to by <i>ch</i> will not be changed.<p>The<i><a href="killchar.html">killchar()</a></i>function returns the current line kill character. The<i>killwchar()</i>function stores the current line kill character in the object pointed to by<i>ch</i>. If no line kill character has been defined, the function will failand the object pointed to by <i>ch</i> will not be changed.</blockquote><h4><a name = "tag_001_009_057"> </a>RETURN VALUE</h4><blockquote>The<i>erasechar()</i>function returns the erase character and<i><a href="killchar.html">killchar()</a></i>returns the line kill character. The return value is unspecified when thesecharacters are multi-byte characters.<p>Upon successful completion,<i>erasewchar()</i>and<i>killwchar()</i>return OK. Otherwise, they return ERR.</blockquote><h4><a name = "tag_001_009_058"> </a>ERRORS</h4><blockquote>No errors are defined.</blockquote><h4><a name = "tag_001_009_059"> </a>APPLICATION USAGE</h4><blockquote>The<i>erasechar()</i>and<i><a href="killchar.html">killchar()</a></i>functions are only guaranteed to operate reliably on character sets inwhich each character fits into a single byte, whose attributes can beexpressed using only constants with the A_ prefix.Moreover, they do not reliably indicate cases in which when the erase or linekill character, respectively, has not been defined. The<i>erasewchar()</i>and<i>killwchar()</i>functions overcome these limitations.</blockquote><h4><a name = "tag_001_009_060"> </a>SEE ALSO</h4><blockquote><xref href=rendition><a href="intov.html#tag_001_003_003">Attributes</a></xref>,<i><a href="clearok.html">clearok()</a></i>,<i><a href="delscreen.html">delscreen()</a></i>,<i><a href="../xsh/tcgetattr.html">tcgetattr()</a></i>(in the <b>XSH</b> specification) ,<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
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -