IAMExtTransport::put_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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 put_Rate method sets the playback rate for variable-speed external devices.

This method is not implemented.

Syntax

HRESULT put_Rate(
  [in] double dblRate
);

Parameters

[in] dblRate

Specifies the rate as a multiple of normal playback rate. For example, 0.5 specifies half speed, and 2.0 specifies double speed.

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

IAMExtTransport::get_Rate