X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=man%2Fcurs_overlay.3x;h=cea734e4a97c1220040c5c43d664ebc778ae5845;hp=3d817d41c67b10c052f080aa4a07c8c4f0fdcc21;hb=8639fbcc9f182c74c2974dec2da5eed5cb703700;hpb=46722468f47c2b77b3987729b4bcf2321cccfd01

diff --git a/man/curs_overlay.3x b/man/curs_overlay.3x
index 3d817d41..cea734e4 100644
--- a/man/curs_overlay.3x
+++ b/man/curs_overlay.3x
@@ -1,5 +1,5 @@
 .\"***************************************************************************
-.\" Copyright (c) 1998,2000,2001 Free Software Foundation, Inc.              *
+.\" 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            *
@@ -26,15 +26,19 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_overlay.3x,v 1.11 2002/07/20 14:53:00 tom Exp $
+.\" $Id: curs_overlay.3x,v 1.16 2010/12/04 18:40:45 tom Exp $
 .TH curs_overlay 3X ""
+.na
+.hy 0
 .SH NAME
 \fBoverlay\fR,
 \fBoverwrite\fR,
-\fBcopywin\fR - overlay and manipulate overlapped \fBcurses\fR windows
+\fBcopywin\fR \- overlay and manipulate overlapped \fBcurses\fR windows
+.ad
+.hy
 .SH SYNOPSIS
 \fB#include <curses.h>\fR
-
+.sp
 \fBint overlay(const WINDOW *srcwin, WINDOW *dstwin);\fR
 .br
 \fBint overwrite(const WINDOW *srcwin, WINDOW *dstwin);\fR
@@ -48,7 +52,7 @@ top of \fIdstwin\fR.  \fIscrwin\fR and \fIdstwin\fR are not required
 to be the same size; only text where the two windows overlap is
 copied.  The difference is that \fBoverlay\fR is non-destructive
 (blanks are not copied) whereas \fBoverwrite\fR is destructive.
-
+.PP
 The \fBcopywin\fR routine provides a finer granularity of control over the
 \fBoverlay\fR and \fBoverwrite\fR routines.  Like in the \fBprefresh\fR
 routine, a rectangle is specified in the destination window, (\fIdminrow\fR,
@@ -60,6 +64,13 @@ argument \fIoverlay\fR is \fBtrue\fR, then copying is non-destructive, as in
 Routines that return an integer return \fBERR\fR upon failure, and \fBOK\fR
 (SVr4 only specifies "an integer value other than \fBERR\fR") upon successful
 completion.
+.PP
+X/Open defines no error conditions.
+In this implementation,
+\fBcopywin\fP,
+\fBoverlay\fP and \fBoverwrite\fP return an error
+if either of the window pointers are null, or
+if some part of the window would be placed off-screen.
 .SH NOTES
 Note that \fBoverlay\fR and \fBoverwrite\fR may be macros.
 .SH PORTABILITY
@@ -68,9 +79,3 @@ qualifiers).  It further specifies their behavior in the presence of characters
 with multibyte renditions (not yet supported in this implementation).
 .SH SEE ALSO
 \fBcurses\fR(3X), \fBcurs_pad\fR(3X), \fBcurs_refresh\fR(3X)
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End: