[id(DISPID_MediaPlayerOpeningEvent), helpstring("Opening media")]\r
void MediaPlayerOpening();\r
[id(DISPID_MediaPlayerBufferingEvent), helpstring("Buffering media")]\r
[id(DISPID_MediaPlayerOpeningEvent), helpstring("Opening media")]\r
void MediaPlayerOpening();\r
[id(DISPID_MediaPlayerBufferingEvent), helpstring("Buffering media")]\r