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+ * Copyright 2020-2023,2024 Thomas E. Dickey *
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- * @Id: curs_overlay.3x,v 1.18 2015/07/21 00:51:31 tom Exp @
+ * @Id: curs_overlay.3x,v 1.43 2024/04/20 21:20:07 tom Exp @
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-<H1 class="no-header">curs_overlay 3x</H1>
+<H1 class="no-header">curs_overlay 3x 2024-04-20 ncurses 6.4 Library calls</H1>
<PRE>
-<STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
<STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
+<STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
Library calls <STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
- <STRONG>overlay</STRONG>, <STRONG>overwrite</STRONG>, <STRONG>copywin</STRONG> - overlay and manipulate overlapped <STRONG>curses</STRONG>
- windows
+ <STRONG>overlay</STRONG>, <STRONG>overwrite</STRONG>, <STRONG>copywin</STRONG> - overlay <EM>curses</EM> windows and manipulate
+ them
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
-</PRE><H3><a name="h3-overlay_
-overwrite">overlay, overwrite</a></H3><PRE>
+</PRE><H3><a name="h3-overlay_overwrite">overlay, overwrite</a></H3><PRE>
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 destruc-
- tive.
+ non-destructive (blanks are not copied) whereas <STRONG>overwrite</STRONG> is
+ destructive.
</PRE><H3><a name="h3-copywin">copywin</a></H3><PRE>
The <STRONG>copywin</STRONG> routine provides a finer granularity of control over the
- <STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> routines. As in the <STRONG>prefresh</STRONG> routine, a rectan-
- gle is specified in the destination window, (<EM>dminrow</EM>, <EM>dmincol</EM>) and
- (<EM>dmaxrow</EM>, <EM>dmaxcol</EM>), and the upper-left-corner coordinates of the source
- window, (<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>.
+ <STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> routines. As in the <STRONG>prefresh</STRONG> routine, a
+ rectangle is specified in the destination window, (<EM>dminrow</EM>, <EM>dmincol</EM>)
+ and (<EM>dmaxrow</EM>, <EM>dmaxcol</EM>), and the upper-left-corner coordinates of the
+ source window, (<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><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
- 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 com-
- pletion.
+ These routines return the integer <STRONG>ERR</STRONG> upon failure and an <STRONG>OK</STRONG> (SVr4
+ specifies only "an integer value other than <STRONG>ERR</STRONG>") upon successful
+ completion.
X/Open defines no error conditions. In this implementation, <STRONG>copywin</STRONG>,
<STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> return an error if either of the window pointers
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></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 multibyte renditions (not yet supported in this im-
- plementation).
+ These functions are described in X/Open Curses, Issue 4, which adds
+ <EM>const</EM> qualifiers to the arguments. It further specifies their behavior
+ in the presence of characters with multibyte renditions (not yet
+ supported in this implementation).
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
-
<STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
+
ncurses 6.4 2024-04-20 <STRONG><A HREF="curs_overlay.3x.html">curs_overlay(3x)</A></STRONG>
</PRE>
<div class="nav">
<ul>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
<ul>
-<li><a href="#h3-overlay_-overwrite">overlay, overwrite</a></li>
+<li><a href="#h3-overlay_overwrite">overlay, overwrite</a></li>
<li><a href="#h3-copywin">copywin</a></li>
</ul>
</li>
projects / ncurses.git / blobdiff