-Upon successful completion, the other functions return \fBOK\fR.
-Otherwise, they return \fBERR\fR.
+X/Open Curses does not provide details on how the rendition is changed.
+This implementation follows the approach used in SVr4 curses,
+which is explained in the manual page for \fBwbkgd\fP.
+.SH RETURN VALUE
+.PP
+The \fBbkgrndset\fP and \fBwbkgrndset\fP routines do not return a value.
+.PP
+Upon successful completion, the other functions return \fBOK\fP.
+Otherwise, they return \fBERR\fP:
+.bP