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ncurses 5.3
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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<!--
****************************************************************************
ncurses 5.7 - patch 20100731 + modify initialization check for win32con driver to eliminate need for special case for TERM "unknown", using terminal database if available (prompted by discussion with Roumen Petrov). + for MinGW port, ensure that terminal driver is setup if tgetent() is called (patch by Roumen Petrov). + document tabs "-0" and "-8" options in manpage. + fix Debian "lintian" issues with manpages reported in http://lintian.debian.org/full/csmall@debian.org.html#ncurses
2010-08-01 08:45:28 +08:00
* Copyright (c) 1998-2006,2010 Free Software Foundation, Inc. *
ncurses 5.3
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* *
* Permission is hereby granted, free of charge, to any person obtaining a *
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ncurses 5.7 - patch 20110108 + regenerated html manpages. + minor fixes to enable lint when trace is not enabled, e.g., with clang --analyze. + fix typo in man/default_colors.3x (patch by Tim van der Molen). + update ncurses/llib-lncurses*
2011-01-09 09:17:12 +08:00
* @Id: curs_overlay.3x,v 1.16 2010/12/04 18:40:45 tom Exp @
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-->
ncurses 5.1
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<HTML>
ncurses 5.3
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<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>
ncurses 5.1
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<BODY>
ncurses 5.3
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<H1>curs_overlay 3x</H1>
<HR>
ncurses 5.1
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<PRE>
<!-- Manpage converted by man2html 3.0.1 -->
ncurses 5.5
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<STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG> <STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
ncurses 5.4
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ncurses 5.1
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</PRE>
<H2>NAME</H2><PRE>
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<STRONG>overlay</STRONG>, <STRONG>overwrite</STRONG>, <STRONG>copywin</STRONG> - overlay and manipulate
overlapped <STRONG>curses</STRONG> windows
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</PRE>
<H2>SYNOPSIS</H2><PRE>
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<STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
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<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>
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</PRE>
<H2>DESCRIPTION</H2><PRE>
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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
ncurses 5.7 - patch 20100731 + modify initialization check for win32con driver to eliminate need for special case for TERM "unknown", using terminal database if available (prompted by discussion with Roumen Petrov). + for MinGW port, ensure that terminal driver is setup if tgetent() is called (patch by Roumen Petrov). + document tabs "-0" and "-8" options in manpage. + fix Debian "lintian" issues with manpages reported in http://lintian.debian.org/full/csmall@debian.org.html#ncurses
2010-08-01 08:45:28 +08:00
(blanks are not copied) whereas <STRONG>overwrite</STRONG> is destructive.
ncurses 5.1
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ncurses 5.7 - patch 20100731 + modify initialization check for win32con driver to eliminate need for special case for TERM "unknown", using terminal database if available (prompted by discussion with Roumen Petrov). + for MinGW port, ensure that terminal driver is setup if tgetent() is called (patch by Roumen Petrov). + document tabs "-0" and "-8" options in manpage. + fix Debian "lintian" issues with manpages reported in http://lintian.debian.org/full/csmall@debian.org.html#ncurses
2010-08-01 08:45:28 +08:00
The <STRONG>copywin</STRONG> routine provides a finer granularity of con-
ncurses 5.3
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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-
ncurses 5.7 - patch 20100731 + modify initialization check for win32con driver to eliminate need for special case for TERM "unknown", using terminal database if available (prompted by discussion with Roumen Petrov). + for MinGW port, ensure that terminal driver is setup if tgetent() is called (patch by Roumen Petrov). + document tabs "-0" and "-8" options in manpage. + fix Debian "lintian" issues with manpages reported in http://lintian.debian.org/full/csmall@debian.org.html#ncurses
2010-08-01 08:45:28 +08:00
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-
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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>.
ncurses 5.1
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</PRE>
<H2>RETURN VALUE</H2><PRE>
ncurses 5.7 - patch 20100731 + modify initialization check for win32con driver to eliminate need for special case for TERM "unknown", using terminal database if available (prompted by discussion with Roumen Petrov). + for MinGW port, ensure that terminal driver is setup if tgetent() is called (patch by Roumen Petrov). + document tabs "-0" and "-8" options in manpage. + fix Debian "lintian" issues with manpages reported in http://lintian.debian.org/full/csmall@debian.org.html#ncurses
2010-08-01 08:45:28 +08:00
Routines that return an integer return <STRONG>ERR</STRONG> upon failure,
and <STRONG>OK</STRONG> (SVr4 only specifies "an integer value other than
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<STRONG>ERR</STRONG>") upon successful completion.
ncurses 5.1
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ncurses 5.7 - patch 20100731 + modify initialization check for win32con driver to eliminate need for special case for TERM "unknown", using terminal database if available (prompted by discussion with Roumen Petrov). + for MinGW port, ensure that terminal driver is setup if tgetent() is called (patch by Roumen Petrov). + document tabs "-0" and "-8" options in manpage. + fix Debian "lintian" issues with manpages reported in http://lintian.debian.org/full/csmall@debian.org.html#ncurses
2010-08-01 08:45:28 +08:00
X/Open defines no error conditions. In this implementa-
tion, <STRONG>copywin</STRONG>, <STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> return an error if
ncurses 5.5
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either of the window pointers are null, or if some part of
the window would be placed off-screen.
ncurses 5.1
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</PRE>
<H2>NOTES</H2><PRE>
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Note that <STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> may be macros.
ncurses 5.1
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</PRE>
<H2>PORTABILITY</H2><PRE>
The XSI Curses standard, Issue 4 describes these functions
(adding the const qualifiers). It further specifies their
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behavior in the presence of characters with multibyte ren-
ditions (not yet supported in this implementation).
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</PRE>
<H2>SEE ALSO</H2><PRE>
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<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>
ncurses 5.1
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ncurses 5.5
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<STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
ncurses 5.1
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</PRE>
<HR>
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