+<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
+<!--
+ ****************************************************************************
+ * Copyright (c) 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_overlay.3x,v 1.15 2010/07/31 16:10:55 tom Exp @
+-->
<HTML>
+<HEAD>
+<TITLE>curs_overlay 3x</TITLE>
+<link rev=made href="mailto:bug-ncurses@gnu.org">
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+</HEAD>
<BODY>
+<H1>curs_overlay 3x</H1>
+<HR>
<PRE>
<!-- Manpage converted by man2html 3.0.1 -->
+<STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG> <STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
+
+
+
</PRE>
<H2>NAME</H2><PRE>
- <B>overlay</B>, <B>overwrite</B>, <B>copywin</B> - overlay and manipulate over-
- lapped <B>curses</B> windows
+ <STRONG>overlay</STRONG>, <STRONG>overwrite</STRONG>, <STRONG>copywin</STRONG> - overlay and manipulate
+ overlapped <STRONG>curses</STRONG> windows
</PRE>
<H2>SYNOPSIS</H2><PRE>
- <B>#include</B> <B><curses.h></B>
+ <STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
- <B>int</B> <B>overlay(const</B> <B>WINDOW</B> <B>*srcwin,</B> <B>WINDOW</B> <B>*dstwin);</B>
- <B>int</B> <B>overwrite(const</B> <B>WINDOW</B> <B>*srcwin,</B> <B>WINDOW</B> <B>*dstwin);</B>
- <B>int</B> <B>copywin(WINDOW</B> <B>*srcwin,</B> <B>WINDOW</B> <B>*dstwin,</B> <B>int</B> <B>sminrow,</B>
- <B>int</B> <B>smincol,</B> <B>int</B> <B>dminrow,</B> <B>int</B> <B>dmincol,</B> <B>int</B> <B>dmaxrow,</B>
- <B>int</B> <B>dmaxcol,</B> <B>int</B> <B>overlay);</B>
+ <STRONG>int</STRONG> <STRONG>overlay(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*srcwin,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*dstwin);</STRONG>
+ <STRONG>int</STRONG> <STRONG>overwrite(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*srcwin,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*dstwin);</STRONG>
+ <STRONG>int</STRONG> <STRONG>copywin(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*srcwin,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*dstwin,</STRONG> <STRONG>int</STRONG>
+ <STRONG>sminrow,</STRONG>
+ <STRONG>int</STRONG> <STRONG>smincol,</STRONG> <STRONG>int</STRONG> <STRONG>dminrow,</STRONG> <STRONG>int</STRONG> <STRONG>dmincol,</STRONG> <STRONG>int</STRONG> <STRONG>dmaxrow,</STRONG>
+ <STRONG>int</STRONG> <STRONG>dmaxcol,</STRONG> <STRONG>int</STRONG> <STRONG>overlay);</STRONG>
</PRE>
<H2>DESCRIPTION</H2><PRE>
- The <B>overlay</B> and <B>overwrite</B> routines overlay <I>srcwin</I> on top
- of <I>dstwin</I>. <I>scrwin</I> and <I>dstwin</I> are not required to be the
- same size; only text where the two windows overlap is
- copied. The difference is that <B>overlay</B> is non-destructive
- (blanks are not copied) whereas <B>overwrite</B> is destructive.
-
- The <B>copywin</B> routine provides a finer granularity of con-
- trol over the <B>overlay</B> and <B>overwrite</B> routines. Like in the
- <B>prefresh</B> routine, a rectangle is specified in the destina-
- tion window, (<I>dminrow</I>, <I>dmincol</I>) and (<I>dmaxrow</I>, <I>dmaxcol</I>),
+ The <STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> routines overlay <EM>srcwin</EM> on top
+ of <EM>dstwin</EM>. <EM>scrwin</EM> and <EM>dstwin</EM> are not required to be the
+ same size; only text where the two windows overlap is
+ copied. The difference is that <STRONG>overlay</STRONG> is non-destructive
+ (blanks are not copied) whereas <STRONG>overwrite</STRONG> is destructive.
+
+ The <STRONG>copywin</STRONG> routine provides a finer granularity of con-
+ trol over the <STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> routines. Like in the
+ <STRONG>prefresh</STRONG> routine, a rectangle is specified in the destina-
+ tion window, (<EM>dminrow</EM>, <EM>dmincol</EM>) and (<EM>dmaxrow</EM>, <EM>dmaxcol</EM>),
and the upper-left-corner coordinates of the source win-
- dow, (<I>sminrow</I>, <I>smincol</I>). If the argument <I>overlay</I> is <B>true</B>,
- then copying is non-destructive, as in <B>overlay</B>.
+ dow, (<EM>sminrow</EM>, <EM>smincol</EM>). If the argument <EM>overlay</EM> is <STRONG>true</STRONG>,
+ then copying is non-destructive, as in <STRONG>overlay</STRONG>.
</PRE>
<H2>RETURN VALUE</H2><PRE>
- Routines that return an integer return <B>ERR</B> upon failure,
- and <B>OK</B> (SVr4 only specifies "an integer value other than
- <B>ERR</B>") upon successful completion.
+ Routines that return an integer return <STRONG>ERR</STRONG> upon failure,
+ and <STRONG>OK</STRONG> (SVr4 only specifies "an integer value other than
+ <STRONG>ERR</STRONG>") upon successful completion.
+
+ X/Open defines no error conditions. In this implementa-
+ tion, <STRONG>copywin</STRONG>, <STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> return an error if
+ either of the window pointers are null, or if some part of
+ the window would be placed off-screen.
</PRE>
<H2>NOTES</H2><PRE>
- Note that <B>overlay</B> and <B>overwrite</B> may be macros.
+ Note that <STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> may be macros.
</PRE>
<H2>PORTABILITY</H2><PRE>
The XSI Curses standard, Issue 4 describes these functions
(adding the const qualifiers). It further specifies their
- behavior in the presence of characters with multi-byte
- renditions (not yet supported in this implementation).
+ behavior in the presence of characters with multibyte ren-
+ ditions (not yet supported in this implementation).
</PRE>
<H2>SEE ALSO</H2><PRE>
- <B><A HREF="ncurses.3x.html">curses(3x)</A></B>, <B><A HREF="curs_pad.3x.html">curs_pad(3x)</A></B>, <B><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></B>
-
-
-
-
-
-
-
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_pad.3x.html">curs_pad(3x)</A></STRONG>, <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>
+ <STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
</PRE>
<HR>
<ADDRESS>