Microsoft DirectX 9.0


The GetDuration method retrieves the duration of the stream.


HRESULT GetDuration(
  LONGLONG *pDuration



[out] Pointer to a variable that receives the duration, in units of the current time format.

Return Value

Returns an HRESULT value. Possible values include the following.

Value Description
S_OK Success.
E_NOTIMPL Method is not supported.
E_POINTER NULL pointer argument.


This method retrieves the duration of the stream at normal playback speed. Changing the playback rate does not affect the duration.

The returned value is expressed in the current time format. The default time format is REFERENCE_TIME units (100 nanoseconds). To change time formats, use the IMediaSeeking::SetTimeFormat method.

See Also