ncurses 6.2 - patch 20210619

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

diff --git a/man/curs_bkgd.3x b/man/curs_bkgd.3x
index d93bbd4a995e1b5e197033f2c6814db266e68d4c..356eff470819f81df2246c943d704377a90cc081 100644 (file)
--- a/man/curs_bkgd.3x
+++ b/man/curs_bkgd.3x
@@ -1,5 +1,6 @@
 .\"***************************************************************************
-.\" Copyright (c) 1998-2017,2018 Free Software Foundation, Inc.              *
+.\" Copyright 2018-2020,2021 Thomas E. Dickey                                *
+.\" Copyright 1998-2015,2017 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 +27,7 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_bkgd.3x,v 1.28 2018/12/09 00:45:05 tom Exp $
+.\" $Id: curs_bkgd.3x,v 1.32 2021/06/17 21:30:22 tom Exp $
 .de bP
 .ie n  .IP \(bu 4
 .el    .IP \(bu 2
@@ -42,11 +43,11 @@
 \fBvoid bkgdset(chtype \fP\fIch\fP\fB);\fR
 .br
 \fBvoid wbkgdset(WINDOW *\fP\fIwin, chtype \fP\fIch\fP\fB);\fR
-.br
+.sp
 \fBint bkgd(chtype \fP\fIch\fP\fB);\fR
 .br
 \fBint wbkgd(WINDOW *\fP\fIwin\fP\fB, chtype \fP\fIch\fP\fB);\fR
-.br
+.sp
 \fBchtype getbkgd(WINDOW *\fP\fIwin\fP\fB);\fR
 .br
 .SH DESCRIPTION
@@ -102,7 +103,7 @@ cell with those from the new background character.
 If the cell uses color,
 and that matches the color in the current background,
 the library removes attributes
-which may have come from the current background 
+which may have come from the current background
 and adds attributes from the new background.
 It finishes by setting the cell
 to use the color from the new background.
@@ -112,6 +113,12 @@ and that does not match the color in the current background,
 the library updates only the non-color attributes,
 first removing those which may have come from the current background,
 and then adding attributes from the new background.
+.PP
+If the background's character value is zero, a space is assumed.
+.PP
+If the terminal does not support color,
+or if color has not been started with \fBstart_color\fP,
+the new background character's color attribute will be ignored.
 .SS getbkgd
 .PP
 The \fBgetbkgd\fR function returns the given window's current background