IMSVidStreamBufferSourceEvent2::RateChange method (segment.h)

Artikel
12/05/2018

[The feature associated with this page, Microsoft TV Technologies, is a legacy feature. Microsoft strongly recommends that new code does not use this feature.]

This topic applies to Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005.

The RateChange method is called when the playback rate changes.

Syntax

HRESULT RateChange(
  [in] double qwNewRate,
  [in] double qwOldRate
);

Parameters

[in] qwNewRate

Specifies the new playback rate.

[in] qwOldRate

Specifies the previous playback rate.

Return value

Returns an HRESULT value. Possible values include the following.

Return code	Description
S_OK	Success.

Remarks

For both parameters, 1.0 represents normal speed. Fractional values are allowed. For example, 0.2 would represent a rate that is slower than normal playback and 1.7 would represent a rate that is faster than normal playback.

Requirements

Requirement	Value
Target Platform	Windows
Header	segment.h (include Msvidctl.h)

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