+ <B>o</B> if the corresponding calls to <B>waddch</B> return an error.
+
+ Functions with a "mv" prefix first perform a cursor movement using
+ <B>wmove</B>, and return an error if the position is outside the window, or if
+ the window pointer is null. If an error is returned by the <B>wmove</B>, no
+ characters are added to the window.
+
+ If an error is returned by <B>waddch</B> (e.g., because the window is not
+ large enough, or an illegal byte sequence was detected) only part of
+ the string may be added. Aside from that, there is a special case in
+ <B>waddch</B> where an error may be returned after successfully writing a
+ character to the lower-right corner of a window when <B>scrollok</B> is dis-
+ abled.
+
+
+</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
+ All of these functions except <B>waddnstr</B> may be macros.
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ These functions are described in the XSI Curses standard, Issue 4.
+
+
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
+ <B><A HREF="curses.3X.html">curses(3X)</A></B>, <B><A HREF="curs_addch.3X.html">curs_addch(3X)</A></B>.