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+ * Copyright (c) 1998-2006,2010 Free Software Foundation, Inc. *
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- * @Id: curs_overlay.3x,v 1.14 2006/02/25 21:49:19 tom Exp @
+ * @Id: curs_overlay.3x,v 1.15 2010/07/31 16:10:55 tom Exp @
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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.
+ (blanks are not copied) whereas <STRONG>overwrite</STRONG> is destructive.
- The <STRONG>copywin</STRONG> routine provides a finer granularity of con-
+ 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-
+ 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, (<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 <STRONG>ERR</STRONG> upon failure,
- and <STRONG>OK</STRONG> (SVr4 only specifies "an integer value other than
+ 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
+ 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.
projects / ncurses.git / blobdiff