.\"***************************************************************************
-.\" Copyright (c) 1998-2017,2018 Free Software Foundation, Inc. *
+.\" Copyright 2018-2019,2020 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 *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: curs_bkgd.3x,v 1.28 2018/12/09 00:45:05 tom Exp $
+.\" $Id: curs_bkgd.3x,v 1.31 2020/10/17 23:12:52 tom Exp $
.de bP
.ie n .IP \(bu 4
.el .IP \(bu 2
\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
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