-set in the WINDOW structure, allowing it to be ``opaque'' if
-the symbol \fBNCURSES_OPAQUE\fR is defined:
+set in the WINDOW structure, allowing it to be \*(``opaque\*('' if
+the symbol \fBNCURSES_OPAQUE\fP is defined:
+.TP 5
+\fBis_cleared\fP
+returns the value set in \fBclearok\fP
+.TP 5
+\fBis_idcok\fP
+returns the value set in \fBidcok\fP
+.TP 5
+\fBis_idlok\fP
+returns the value set in \fBidlok\fP