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IPart::GetTopologyObject method (devicetopology.h)

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The GetTopologyObject method gets a reference to the IDeviceTopology interface of the device-topology object that contains this part.

Syntax

HRESULT GetTopologyObject(
  [out] IDeviceTopology **ppTopology
);

Parameters

[out] ppTopology

Pointer to a pointer variable into which the method writes the address of the IDeviceTopology interface of the device-topology object. The caller obtains a counted reference to the interface from this method. Through this method, the caller obtains a counted reference to the interface. The caller is responsible for releasing the interface, when it is no longer needed, by calling the interface's Release method. If the GetTopologyObject call fails, *ppTopology is NULL.

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 ppTopology is NULL.

Remarks

For code examples that use this method, see the following topics:

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header devicetopology.h

See also

IDeviceTopology Interface

IPart Interface