-.bP
-.B \%waddch
-displays control characters in
-.BI \*^ X
-notation.
-.bP
-Character codes above 127 are either meta characters
-(if the screen has not been initialized,
-or if \fB\%meta\fP(3X) has been called with a
-.B TRUE
-.I bf
-parameter)
-that render in
-.BI M\- X
-notation,
-or they display as themselves.
-In the latter case,
-the values may not be printable;
-.\" XXX: The following claim could be clearer.
-this follows the X/Open specification.