IWMStreamConfig2::GetDataUnitExtensionCount method

The GetDataUnitExtensionCount method retrieves the total number of data unit extension systems that have been added to the stream.

Syntax

HRESULT GetDataUnitExtensionCount(
  WORD *pcDataUnitExtensions
);

Parameters

pcDataUnitExtensions

Pointer to a WORD that receives the count of data unit extensions.

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_INVALIDARG
pcDataUnitExtensions is NULL.

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

IWMStreamConfig2 Interface

IWMStreamConfig2::GetDataUnitExtension