IDeviceTopology::GetSubunitCount method

The GetSubunitCount method gets the number of subunits in the device topology.

Syntax


HRESULT GetSubunitCount(
  [out] UINT *pCount
);

Parameters

pCount [out]

Pointer to a UINT variable into which the method writes the subunit count (the number of subunits in the device topology).

Return value

If the method succeeds, it returns S_OK. If it fails, possible return codes include, but are not limited to, the values shown in the following table.

Return codeDescription
E_POINTER

Pointer pCount is NULL.

 

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Devicetopology.h

See also

IDeviceTopology Interface

 

 

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