class KeyReference : Object public static const_c uint VK_LBUTTON public static const_c uint VK_SHIFT public static const_c uint VK_ESCAPE public static const_c uint VK_LEFT public static const_c uint VK_UP public static const_c uint VK_RIGHT public static const_c uint VK_DOWN public static const_c uint VK_A public static const_c uint VK_B public static const_c uint VK_Z