Openbox doesn't look for hung processes at this time.
+ _NET_FRAME_EXTENTS (1.3)
+ _NET_WM_STATE_DEMANDS_ATTENTION (1.3)
-- _NET_RESTACK_WINDOW (1.3)
- Openbox doesn't support this at this time.
++ _NET_RESTACK_WINDOW (1.3)
+ _NET_WM_SYNC_REQUEST (1.3)
+ _NET_WM_FULL_PLACEMENT (1.4)
+ _NET_WM_MOVERESIZE_CANCEL (1.4)
+ _NET_REQUEST_FRAME_EXTENTS (1.3)
++ _NET_WM_ACTION_MOVE (1.3)
++ _NET_WM_ACTION_RESIZE (1.3)
++ _NET_WM_ACTION_MINIMIZE (1.3)
++ _NET_WM_ACTION_SHADE (1.3)
+- _NET_WM_ACTION_STICK (1.3)
+ Openbox does not do large desktops, so no sticky state is needed.
++ _NET_WM_ACTION_MAXIMIZE_HORZ (1.3)
++ _NET_WM_ACTION_MAXIMIZE_VERT (1.3)
++ _NET_WM_ACTION_FULLSCREEN (1.3)
++ _NET_WM_ACTION_CHANGE_DESKTOP (1.3)
++ _NET_WM_ACTION_CLOSE (1.3)
++ _NET_WM_ACTION_ABOVE (1.4?)
++ _NET_WM_ACTION_BELOW (1.4?)