'宣言 Sub GetTile( _ ByVal z As Integer, _ ByVal x As Integer, _ ByVal y As Integer, _ ByVal onCreated As TileImageCreated, _ ByVal onCreating As TileImageCreating, _ ByVal zoomChanging As TileImageZoomChanging _ )
void GetTile( int z, int x, int y, TileImageCreated onCreated, TileImageCreating onCreating, TileImageZoomChanging zoomChanging )