ncurses 6.0 - patch 20170902

[ncurses.git] / man / curs_bkgrnd.3x

diff --git a/man/curs_bkgrnd.3x b/man/curs_bkgrnd.3x
index 2bbb4fce4581b8ed8e8f2507de1da75000bdbeca..f9b4f41964f88c96148ad68f672343380b10d63e 100644 (file)
--- a/man/curs_bkgrnd.3x
+++ b/man/curs_bkgrnd.3x
@@ -1,5 +1,5 @@
 .\"***************************************************************************
-.\" Copyright (c) 2002-2012,2015 Free Software Foundation, Inc.              *
+.\" Copyright (c) 2002-2015,2017 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            *
@@ -26,7 +26,7 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_bkgrnd.3x,v 1.6 2015/07/21 00:18:42 tom Exp $
+.\" $Id: curs_bkgrnd.3x,v 1.7 2017/03/25 21:49:00 tom Exp $
 .de bP
 .IP \(bu 4
 ..
@@ -87,6 +87,8 @@ appears, it is changed to the new background character.
 .PP
 The \fBgetbkgrnd\fR function returns the given window's current background
 character/attribute pair via the \fBwch\fR pointer.
+If the given window pointer is null,
+the character is not updated (but no error returned).
 .SH NOTES
 Note that
 \fBbkgrnd\fR,
@@ -98,8 +100,11 @@ may be macros.
 The \fBbkgrndset\fR and \fBwbkgrndset\fR routines do not return a value.
 .PP
 Upon successful completion, the other functions return \fBOK\fR.
-Otherwise, they return \fBERR\fR.
+Otherwise, they return \fBERR\fR:
+.bP
 A null window pointer is treated as an error.
+.bP
+A null character pointer is treated as an error.
 .SH SEE ALSO
 \fBcurses\fR(3X),
 \fBcurs_bkgd\fR(3X)