IMediaPosition::get_Rate method

The get_Rate method retrieves the playback rate.

Syntax


HRESULT get_Rate(
  [out] double *pdRate
);

Parameters

pdRate [out]

Pointer to a variable that receives the playback rate.

Return value

Returns an HRESULT value. Possible values include the following.

Return codeDescription
S_OK

Success.

E_NOTIMPL

Not implemented.

E_POINTER

NULL pointer argument.

 

Remarks

The playback rate is expressed as a ratio of the normal speed. Thus, 1.0 is normal playback speed, 0.5 is half speed, and 2.0 is twice speed.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Control.h (include Dshow.h)

Library

Strmiids.lib

See also

Error and Success Codes
IMediaPosition Interface

 

 

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