#
B. Full class hierarchy visible to Lua-side

        Obj
         |-->WHook
         |-->WTimer
         |-->WMoveresMode
         |-->WRegion
         |    |-->WClientWin
         |    |-->WWindow
         |    |    |-->WRootWin
         |    |    |-->WMPlex
         |    |    |    |-->WFrame
         |    |    |    `-->WScreen
         |    |    |-->WInfoWin
         |    |    |    `-->WStatusBar (mod_statusbar)
         |    |    |-->WMenu (mod_menu)
         |    |    `-->WInput (mod_query)
         |    |         |-->WEdln (mod_query)
         |    |         `-->WMessage (mod_query)
         |    |-->WGroup
         |    |    |-->WGroupWS
         |    |    `-->WGroupCW
         |    `-->WTiling (mod_tiling)
         `-->WSplit (mod_tiling)
              |-->WSplitInner (mod_tiling)
              |    `-->WSplitSplit (mod_tiling)
              |         `-->WSplitFloat (mod_tiling)
              `-->WSplitRegion (mod_tiling)
                   `-->WSplitST (mod_tiling)