mirror of
https://github.com/ThomasDickey/ncurses-snapshots.git
synced 2026-01-26 11:04:35 +00:00
123 lines
6.4 KiB
HTML
123 lines
6.4 KiB
HTML
<!--
|
|
****************************************************************************
|
|
* Copyright 2018-2024,2025 Thomas E. Dickey *
|
|
* Copyright 1998-2006,2010 Free Software Foundation, Inc. *
|
|
* *
|
|
* Permission is hereby granted, free of charge, to any person obtaining a *
|
|
* copy of this software and associated documentation files (the *
|
|
* "Software"), to deal in the Software without restriction, including *
|
|
* without limitation the rights to use, copy, modify, merge, publish, *
|
|
* distribute, distribute with modifications, sublicense, and/or sell *
|
|
* copies of the Software, and to permit persons to whom the Software is *
|
|
* furnished to do so, subject to the following conditions: *
|
|
* *
|
|
* The above copyright notice and this permission notice shall be included *
|
|
* in all copies or substantial portions of the Software. *
|
|
* *
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
|
|
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
|
|
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
|
|
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
|
|
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
|
* *
|
|
* Except as contained in this notice, the name(s) of the above copyright *
|
|
* holders shall not be used in advertising or otherwise to promote the *
|
|
* sale, use or other dealings in this Software without prior written *
|
|
* authorization. *
|
|
****************************************************************************
|
|
* @Id: curs_delch.3x,v 1.49 2025/04/05 21:59:53 tom Exp @
|
|
-->
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
|
|
<HTML>
|
|
<HEAD>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
|
|
<meta name="generator" content="Manpage converted by man2html - see https://invisible-island.net/scripts/readme.html#others_scripts">
|
|
<TITLE>curs_delch 3x 2025-04-05 ncurses 6.6 Library calls</TITLE>
|
|
<link rel="author" href="mailto:bug-ncurses@gnu.org">
|
|
|
|
</HEAD>
|
|
<BODY>
|
|
<H1 class="no-header">curs_delch 3x 2025-04-05 ncurses 6.6 Library calls</H1>
|
|
<PRE>
|
|
<STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG> Library calls <STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG>
|
|
|
|
|
|
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
|
|
<STRONG>delch</STRONG>, <STRONG>wdelch</STRONG>, <STRONG>mvdelch</STRONG>, <STRONG>mvwdelch</STRONG> - delete a character from a <EM>curses</EM>
|
|
window
|
|
|
|
|
|
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
|
|
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
|
|
|
|
<STRONG>int</STRONG> <STRONG>delch(void);</STRONG>
|
|
<STRONG>int</STRONG> <STRONG>wdelch(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>);</STRONG>
|
|
<STRONG>int</STRONG> <STRONG>mvdelch(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>);</STRONG>
|
|
<STRONG>int</STRONG> <STRONG>mvwdelch(WINDOW</STRONG> <STRONG>*</STRONG> <EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>);</STRONG>
|
|
|
|
|
|
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
|
|
<STRONG>wdelch</STRONG> deletes the character at the cursor position in <EM>win</EM>. It moves
|
|
all characters to the right of the cursor on the same line to the left
|
|
one position and replaces the contents of the rightmost position on the
|
|
line with the window's background character; see <STRONG><A HREF="curs_bkgd.3x.html">bkgd(3x)</A></STRONG> (wide-
|
|
character API users: <STRONG><A HREF="curs_bkgrnd.3x.html">bkgrnd(3x)</A></STRONG>). The cursor position does not change
|
|
(after moving to (<EM>y</EM>, <EM>x</EM>), if specified). <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG> describes the
|
|
variants of this function.
|
|
|
|
|
|
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
|
|
These functions return <STRONG>OK</STRONG> on success and <STRONG>ERR</STRONG> on failure.
|
|
|
|
In <EM>ncurses</EM>, these functions fail if
|
|
|
|
<STRONG>o</STRONG> the <EM>curses</EM> screen has not been initialized, or
|
|
|
|
<STRONG>o</STRONG> (for functions taking a <EM>WINDOW</EM> pointer argument) <EM>win</EM> is a null
|
|
pointer.
|
|
|
|
Functions prefixed with "mv" first perform cursor movement and fail if
|
|
the position (<EM>y</EM>, <EM>x</EM>) is outside the window boundaries.
|
|
|
|
|
|
</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
|
|
<STRONG>delch</STRONG>, <STRONG>mvdelch</STRONG>, and <STRONG>mvwdelch</STRONG> may be implemented as macros.
|
|
|
|
A terminal's <STRONG>delete_character</STRONG> (<STRONG>dch1</STRONG>) capability is not necessarily
|
|
employed.
|
|
|
|
|
|
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
|
|
X/Open Curses Issue 4 describes these functions. It specifies no error
|
|
conditions for them.
|
|
|
|
SVr4 describes a successful return value only as "an integer value
|
|
other than <EM>ERR</EM>".
|
|
|
|
|
|
</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
|
|
SVr2 (1984) introduced <EM>wdelch</EM>.
|
|
|
|
|
|
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
|
|
<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>
|
|
|
|
ncurses 6.6 2025-04-05 <STRONG><A HREF="curs_delch.3x.html">curs_delch(3x)</A></STRONG>
|
|
</PRE>
|
|
<div class="nav">
|
|
<ul>
|
|
<li><a href="#h2-NAME">NAME</a></li>
|
|
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
|
|
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
|
|
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
|
|
<li><a href="#h2-NOTES">NOTES</a></li>
|
|
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
|
|
<li><a href="#h2-HISTORY">HISTORY</a></li>
|
|
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
|
|
</ul>
|
|
</div>
|
|
</BODY>
|
|
</HTML>
|