-<DD><A NAME="329"></A> is the class for objects
- corresponding to physical screens. Screens may share a root
- window when the Xinerama extension is used as explained above.
+<DD><A NAME="327"></A> is an instance of WMPlex
+ for screens.
+
+<P>
+</DD>
+<DT><STRONG>WRootWin</STRONG></DT>
+<DD><A NAME="328"></A> is the class for
+ root windows<A NAME="244"></A> of X screens<A NAME="245"></A>.
+ It is an instance of WScreen.
+ Note that an ``X screen'' or root window is not necessarily a
+ single physical screen<A NAME="247"></A> as a root window
+ may be split over multiple screens when ugly hacks such as
+ Xinerama<A NAME="248"></A> are used. (Actually there can be only
+ one root window when Xinerama is used.)