IWMPServices::GetStreamTime method (wmpservices.h)

[The feature associated with this page, Windows Media Player SDK, is a legacy feature. It has been superseded by MediaPlayer. MediaPlayer has been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer instead of Windows Media Player SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The IWMPServices::GetStreamTime method retrieves a structure indicating the current stream time.

Syntax

HRESULT GetStreamTime(
  [in] LONGLONG *prt
);

Parameters

[in] prt

Pointer to a REFERENCE_TIME structure.

Return value

The method returns an HRESULT.

Remarks

The current stream time is determined by Windows Media Player. This means that the value returned by this method do not necessarily represent the elapsed time relative to the beginning of the file. For instance, if the user moves the trackbar in the Player to seek the media to a new position, the value returned by this method returns the time elapsed since the media began playing from the new position. Changes in playback rate will also affect the value returned by this method.

The values provided in the rtTimestamp member of IMediaObject::ProcessInput and the rtTimestamp member of the DMO_OUTPUT_DATA_BUFFER structure supplied by IMediaObject::ProcessOutput contain values that indicate when the data provided in the buffer will be rendered relative to the current stream time. Therefore, these values also do not necessarily represent the elapsed time relative to the beginning of the file or the presentation time specified in the file.

Requirements

See also

IWMPServices Interface