IWMWriterAdvanced3::GetStatisticsEx method (wmsdkidl.h)

Artigo
4/26/2023

[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The GetStatisticsEx method retrieves extended statistics for the writer.

Syntax

HRESULT GetStatisticsEx(
  [in]  WORD                    wStreamNum,
  [out] WM_WRITER_STATISTICS_EX *pStats
);

Parameters

[in] wStreamNum

WORD containing the stream number for which you want to get statistics. You can pass 0 to obtain extended statistics for the entire file. Stream numbers are in the range of 1 through 63.

[out] pStats

Pointer to the WM_WRITER_STATISTICS_EX structure that receives the statistics.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code	Description
S_OK	The method succeeded.
NS_E_INVALID_REQUEST	The writer is in the configuration state, during which this method cannot be called.

Remarks

GetStatisticsEx is not an improved version of IWMWriterAdvanced::GetStatistics. The statistics retrieved by GetStatistics are not retrieved by GetStatisticsEx; if you want to get all available statistics you must call both methods.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only],Windows Media Format 9 Series SDK, or later versions of the SDK
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	wmsdkidl.h (include Wmsdk.h)
Library	Wmvcore.lib; WMStubDRM.lib (if you use DRM)

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