(define-enum PackDirection
  (in-module "Gtk")
  (c-name "GtkPackDirection")
  (gtype-id "GTK_TYPE_PACK_DIRECTION")
  (values
    '("ltr" "GTK_PACK_DIRECTION_LTR")
    '("rtl" "GTK_PACK_DIRECTION_RTL")
    '("ttb" "GTK_PACK_DIRECTION_TTB")
    '("btt" "GTK_PACK_DIRECTION_BTT")
  )
)

