Retrieves the handle for the event triggered when the stream completes playback. Interface Retrieves a media stream from a multimedia stream by zero-based index. On return, it contains a pointer to the stream at the specified index. Return Value Returns one of the following values. The ppMediaStream pointer is invalid.
Interface Returns the media stream's duration.
Return Value Returns one of the following values. The value of pDuration is invalid. Stream contains live data or this method couldn't determine the duration. On return, this method sets pDuration to zero. On return, pDuration contains duration of media.