anchor.diff:    :GDK_NOR
     :GDK_SET)
   
  -(defcenum GdkDragProtocol
  -  :GDK_DRAG_PROTO_MOTIF
  -  :GDK_DRAG_PROTO_XDND
  -  :GDK_DRAG_PROTO_ROOTWIN
  -  :GDK_DRAG_PROTO_NONE
  -  :GDK_DRAG_PROTO_WIN32_DROPFILES
  -  :GDK_DRAG_PROTO_OLE2
  -  :GDK_DRAG_PROTO_LOCAL)
  +(defcenum GdkGrabStatus
  +  :GDK_GRAB_SUCCESS
  +  :GDK_GRAB_ALREADY_GRABBED
  +  :GDK_GRAB_INVALID_TIME
  +  :GDK_GRAB_NOT_VIEWABLE
  +  :GDK_GRAB_FROZEN)
  +
  +(defcenum GdkModifierType
  +  (:GDK_SHIFT_MASK 1)
  +  :GDK_LOCK_MASK
  +  (:GDK_CONTROL_MASK 4)
  +  (:GDK_MOD1_MASK 8)
  +  (:GDK_MOD2_MASK 16)
  +  (:GDK_MOD3_MASK 32)
  +  (:GDK_MOD4_MASK 64)
  +  (:GDK_MOD5_MASK 128)
  +  (:GDK_BUTTON1_MASK 256)
  +  (:GDK_BUTTON2_MASK 512)
  +  (:GDK_BUTTON3_MASK 1024)
  +  (:GDK_BUTTON4_MASK 2048)
  +  (:GDK_BUTTON5_MASK 4096)
  +  (:GDK_RELEASE_MASK 1073741824)
  +  (:GDK_MODIFIER_MASK 1073750015))
   
   (defcenum GdkNotifyType
     :GDK_NOTIFY_ANCESTOR
  
positive.code:   (:GDK_SUBSTRUCTURE_MASK 1048576)
    (:GDK_SCROLL_MASK 2097152)
    (:GDK_ALL_EVENTS_MASK 4194302))
  
  (defcenum GdkWindowHints
    (:GDK_HINT_POS 1)
    :GDK_HINT_MIN_SIZE
    (:GDK_HINT_MAX_SIZE 4)
    (:GDK_HINT_BASE_SIZE 8)
    (:GDK_HINT_ASPECT 16)
    (:GDK_HINT_RESIZE_INC 32)
    (:GDK_HINT_WIN_GRAVITY 64)
    (:GDK_HINT_USER_POS 128)
    (:GDK_HINT_USER_SIZE 256))
  
  (cffi:defcstruct Depth
    (depth :int)                          ;int
    (nvisuals :int)                       ;int
    (visuals :pointer)                    ;Visual *
    )
  
  (defcenum GdkEventType
    (:GDK_NOTHING -1)
  
negative.code:   :GTK_SCROLL_PAGE_RIGHT
    :GTK_SCROLL_START
    :GTK_SCROLL_END)
  
  (defcenum GtkSelectionMode
    :GTK_SELECTION_NONE
    :GTK_SELECTION_SINGLE
    :GTK_SELECTION_BROWSE
    :GTK_SELECTION_MULTIPLE
    (:GTK_SELECTION_EXTENDED 3))
  
  (defcenum GtkStateType
    :GTK_STATE_NORMAL
    :GTK_STATE_ACTIVE
    :GTK_STATE_PRELIGHT
    :GTK_STATE_SELECTED
    :GTK_STATE_INSENSITIVE)
  
  (defcenum GtkWindowType
    :GTK_WINDOW_TOPLEVEL
    :GTK_WINDOW_POPUP)
  
  (cffi:defcstruct Screen
    (ext_data :pointer)                   ;XExtData *
  