IMediaPosition::get_CurrentPosition method (control.h)

Article
02/22/2024

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The get_CurrentPosition method retrieves the current position, relative to the total duration of the stream.

Syntax

HRESULT get_CurrentPosition(
  [out] REFTIME *pllTime
);

Parameters

[out] pllTime

Pointer to a variable that receives the current position, in seconds.

Return value

Returns an HRESULT value. Possible values include the following.

Return code	Description
S_OK	Success.
E_NOTIMPL	Not implemented.
E_POINTER	NULL pointer argument.

Remarks

This method returns the current position that playback has reached. The value includes adjustments for the playback rate and starting time. For example, if the start time is 5 seconds, the playback rate is 2.0, and you run the graph for four seconds, the current position is 5 + (4 x 2.0) = 13.0 seconds.

If the graph is paused or stopped, the current position is the point at which playback will resume.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	control.h (include Dshow.h)
Library	Strmiids.lib

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