SetState Sets the media stream to either a running or stopped state. GetTime Retrieves the current time from the multimedia stream's clock, if it has a clock. GetDuration Retrieves the media stream's duration. Seek Sets the seek location of all derived media streams to the specified time. 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.