IAMExtTransport::get_Rate method (strmif.h)

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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_Rate method retrieves the playback rate for variable-speed external devices.

This method is not implemented.

Syntax

HRESULT get_Rate(
  [out] double *pdblRate
);

Parameters

[out] pdblRate

Pointer to a double to receive the playback rate that was set using IAMExtTransport::put_Rate.

Return value

When this method succeeds, it returns S_OK. Otherwise it returns an HRESULT error code.

Requirements

See also

Error and Success Codes

IAMExtTransport Interface