-<!--
+<!--
****************************************************************************
- * Copyright (c) 1998-2018,2019 Free Software Foundation, Inc. *
+ * Copyright 2018-2023,2024 Thomas E. Dickey *
+ * Copyright 1998-2010,2017 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 *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************
- * @Id: curs_insch.3x,v 1.16 2019/11/30 21:06:30 tom Exp @
+ * @Id: curs_insch.3x,v 1.38 2024/03/16 15:35:01 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_insch 3x</TITLE>
+<TITLE>curs_insch 3x 2024-03-16 ncurses 6.4 Library calls</TITLE>
<link rel="author" href="mailto:bug-ncurses@gnu.org">
-<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+
</HEAD>
<BODY>
-<H1 class="no-header">curs_insch 3x</H1>
+<H1 class="no-header">curs_insch 3x 2024-03-16 ncurses 6.4 Library calls</H1>
<PRE>
-<STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
<STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
+<STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
Library calls <STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
- <STRONG>insch</STRONG>, <STRONG>winsch</STRONG>, <STRONG>mvinsch</STRONG>, <STRONG>mvwinsch</STRONG> - insert a character before cursor in
- a <STRONG>curses</STRONG> window
+ <STRONG>insch</STRONG>, <STRONG>winsch</STRONG>, <STRONG>mvinsch</STRONG>, <STRONG>mvwinsch</STRONG> - insert a <EM>curses</EM> character in a
+ window
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
- <STRONG>int</STRONG> <STRONG>insch(chtype</STRONG> <STRONG>ch);</STRONG>
- <STRONG>int</STRONG> <STRONG>winsch(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>chtype</STRONG> <STRONG>ch);</STRONG>
- <STRONG>int</STRONG> <STRONG>mvinsch(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>chtype</STRONG> <STRONG>ch);</STRONG>
- <STRONG>int</STRONG> <STRONG>mvwinsch(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>chtype</STRONG> <STRONG>ch);</STRONG>
+ <STRONG>int</STRONG> <STRONG>insch(chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>winsch(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>mvinsch(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>mvwinsch(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> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
- These routines insert the character <EM>ch</EM> before the character under the
- cursor. All characters to the right of the cursor are moved one space
- to the right, with the possibility of the rightmost character on the
- line being lost. The insertion operation does not change the cursor
- position.
+ These functions insert the <EM>curses</EM> character <EM>ch</EM> at the cursor in the
+ specified window <EM>win</EM> (or <STRONG>stdscr</STRONG>). The character previously at the
+ cursor and any to its right move one cell to the right; the rightmost
+ character on the line is discarded. The cursor does not advance.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
- All routines that return an integer return <STRONG>ERR</STRONG> upon failure and <STRONG>OK</STRONG>
- (SVr4 specifies only "an integer value other than <STRONG>ERR</STRONG>") upon successful
- completion, unless otherwise noted in the preceding routine descrip-
- tions.
+ These functions return <STRONG>OK</STRONG> on success and <STRONG>ERR</STRONG> on failure.
+
+ Functions taking a <EM>WINDOW</EM> pointer argument fail if the pointer is <STRONG>NULL</STRONG>.
- Functions with a "mv" prefix first perform a cursor movement using
- <STRONG>wmove</STRONG>, and return an error if the position is outside the window, or if
- the window pointer is null.
+ Functions prefixed with "mv" first perform cursor movement using <STRONG>wmove</STRONG>
+ and fail if the position (<EM>y</EM>, <EM>x</EM>) is outside the window.
</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
- These routines do not necessarily imply use of a hardware insert char-
- acter feature.
+ A terminal's <STRONG>insert_character</STRONG> (<STRONG>ich1</STRONG>) capability is not necessarily
+ employed.
- Note that <STRONG>insch</STRONG>, <STRONG>mvinsch</STRONG>, and <STRONG>mvwinsch</STRONG> may be macros.
+ <STRONG>insch</STRONG>, <STRONG>mvinsch</STRONG>, and <STRONG>mvwinsch</STRONG> may be implemented as macros.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
- These functions are described in the XSI Curses standard, Issue 4.
+ X/Open Curses, Issue 4, describes these functions.
+
+ SVr4 describes successful return values only as "an integer value other
+ than <STRONG>ERR</STRONG>".
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
- <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>.
+ <STRONG><A HREF="curs_ins_wch.3x.html">curs_ins_wch(3x)</A></STRONG> describes comparable functions in the wide-character
+ <EM>curses</EM> configuration.
- Comparable functions in the wide-character (ncursesw) library are
- described in <STRONG><A HREF="curs_ins_wch.3x.html">curs_ins_wch(3x)</A></STRONG>.
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>
-
<STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
+
ncurses 6.4 2024-03-16 <STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
</PRE>
<div class="nav">
<ul>
projects / ncurses.git / blobdiff