void IltmmPlay_ToggleCloseCaptioning_Example (IltmmPlay* pPlay) { VARIANT_BOOL vrtClose; IltmmPlay_put_CloseCaptioning(pPlay, VARIANT_FALSE); IltmmPlay_ToggleCloseCaptioning(pPlay); IltmmPlay_get_CloseCaptioning(pPlay, &vrtClose); if (vrtClose == VARIANT_TRUE) { MessageBox(NULL, "Close captioning rendering is enabled", NULL, MB_OK); } else { MessageBox(NULL, "Close captioning rendering is disabled", NULL, MB_OK); } }