anchor.diff:    (border-pixmap pixmap) (border-pixel :unsigned-long)
     (bit-gravity :int) (win-gravity :int) (backing-store :int)
     (backing-planes :unsigned-long) (backing-pixel :unsigned-long)
  -  (save-under bool) (event-mask :long) (do-not-propagate-mask :long)
  -  (override-redirect bool) (cmap colormap) (curs cursor))
  +  (save-under :boolean) (event-mask :long) (do-not-propagate-mask :long)
  +  (override-redirect :boolean) (cmap colormap) (curs cursor))
   
   (defcenum (x-alloc :int)
     (:alloc-none)
  
positive.code: (defcstruct x-key-event
    (type :int)
    (serial :unsigned-long)
    (send-event bool)
    (display-ptr :pointer)
    (win window)
    (root window)
  
negative.code: (defctype cursor xid)
  (defctype gcontext xid)
  
  (defcstruct _xdisplay)
  (defctype display _xdisplay)
  
  