IWMSyncReader::GetOutputCount method

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  • Tiempo de lectura: 2 minutos

The GetOutputCount method retrieves the number of outputs that exist for the file open in the synchronous reader.

Syntax

HRESULT GetOutputCount(
  DWORD *pcOutputs
);

Parameters

pcOutputs

Pointer to a DWORD that receives the number of outputs in the file.

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.
E_POINTER
 The pcOutputs parameter is NULL.
E_UNEXPECTED
 The method failed for an unspecified reason.

Remarks

To enumerate the outputs, call GetOutputCount to get the number of outputs, and then call GetOutputProps.

Requirements

   
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)

See also

IWMSyncReader Interface

IWMSyncReader::GetOutputProps

Inputs, Streams and Outputs