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IMediaPosition::CanSeekBackward method (control.h)

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 CanSeekBackward method determines whether the filter graph can seek backward in the stream.

Syntax

HRESULT CanSeekBackward(
  [out] LONG *pCanSeekBackward
);

Parameters

[out] pCanSeekBackward

Pointer to a variable that receives the value OATRUE if the graph can seek backward, or OAFALSE otherwise.

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.

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

See also

Error and Success Codes

IMediaPosition Interface