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- * @Id: curs_overlay.3x,v 1.19 2020/02/02 23:34:34 tom Exp @
+ * @Id: curs_overlay.3x,v 1.45 2024/05/25 20:10:58 tom Exp @
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+<TITLE>curs_overlay 3x 2024-05-25 ncurses 6.5 Library calls</TITLE>
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-<H1 class="no-header">curs_overlay 3X</H1>
+<H1 class="no-header">curs_overlay 3x 2024-05-25 ncurses 6.5 Library calls</H1>
<PRE>
-<B><A HREF="curs_overlay.3X.html">curs_overlay(3X)</A></B> <B><A HREF="curs_overlay.3X.html">curs_overlay(3X)</A></B>
+<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>
- <B>overlay</B>, <B>overwrite</B>, <B>copywin</B> - overlay and manipulate overlapped <B>curses</B>
- 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>
- <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>*</B><I>srcwin</I><B>,</B> <B>WINDOW</B> <B>*</B><I>dstwin</I><B>);</B>
- <B>int</B> <B>overwrite(const</B> <B>WINDOW</B> <B>*</B><I>srcwin</I><B>,</B> <B>WINDOW</B> <B>*</B><I>dstwin</I><B>);</B>
- <B>int</B> <B>copywin(const</B> <B>WINDOW</B> <B>*</B><I>srcwin</I><B>,</B> <B>WINDOW</B> <B>*</B><I>dstwin</I><B>,</B> <B>int</B> <I>sminrow</I><B>,</B>
- <B>int</B> <I>smincol</I><B>,</B> <B>int</B> <I>dminrow</I><B>,</B> <B>int</B> <I>dmincol</I><B>,</B> <B>int</B> <I>dmaxrow</I><B>,</B>
- <B>int</B> <I>dmaxcol</I><B>,</B> <B>int</B> <I>overlay</I><B>);</B>
+ <STRONG>int</STRONG> <STRONG>overlay(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>srcwin</EM><STRONG>,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>dstwin</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>overwrite(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>srcwin</EM><STRONG>,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>dstwin</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>copywin(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>srcwin</EM><STRONG>,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>dstwin</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>sminrow</EM><STRONG>,</STRONG>
+ <STRONG>int</STRONG> <EM>smincol</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>dminrow</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>dmincol</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>dmaxrow</EM><STRONG>,</STRONG>
+ <STRONG>int</STRONG> <EM>dmaxcol</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>overlay</EM><STRONG>);</STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
-</PRE><H3><a name="h3-overlay_
-overwrite">overlay, overwrite</a></H3><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 destruc-
- tive.
+</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
+ destructive.
</PRE><H3><a name="h3-copywin">copywin</a></H3><PRE>
- The <B>copywin</B> routine provides a finer granularity of control over the
- <B>overlay</B> and <B>overwrite</B> routines. As in the <B>prefresh</B> routine, a rectan-
- gle is specified in the destination window, (<I>dminrow</I>, <I>dmincol</I>) and
- (<I>dmaxrow</I>, <I>dmaxcol</I>), and the upper-left-corner coordinates of the source
- window, (<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>.
+ 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
+ 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 <B>ERR</B> upon failure, and <B>OK</B> (SVr4
- only specifies "an integer value other than <B>ERR</B>") 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, <B>copywin</B>,
- <B>overlay</B> and <B>overwrite</B> return an error if either of the window pointers
- are null, or if some part of the window would be placed off-screen.
+ X/Open defines no error conditions. In this implementation, <STRONG>copywin</STRONG>,
+ <STRONG>overlay</STRONG> and <STRONG>overwrite</STRONG> return <STRONG>ERR</STRONG> if either of the window pointers are
+ null, or if some part of the window would be placed off-screen.
</PRE><H2><a name="h2-NOTES">NOTES</a></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><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>
- <B><A HREF="curses.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>
- <B><A HREF="curs_overlay.3X.html">curs_overlay(3X)</A></B>
+ncurses 6.5 2024-05-25 <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