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IDeviceTopology::GetSubunitCount

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IDeviceTopology::GetSubunitCount

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

HRESULT GetSubunitCount(
  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 code Description
E_POINTER Pointer pCount is NULL.

Requirements

Client: Windows Vista

Header: Include Devicetopology.h.

See Also

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