2008-12-10 MPTVOutWindow class touch http://arstechnica.com/journals/apple.ars/2008/11/26/iphone-2-2-sdk-offers-undocumented-tv-out-features http://ericasadun.com/iPhoneDocs220/_m_p_t_v_out_window_8h.html TV出力用の隠しクラス。