IPart::GetTopologyObject
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IPart::GetTopologyObject
The GetTopologyObject method gets a reference to the IDeviceTopology interface of the device-topology object that contains this part.
HRESULT GetTopologyObject( IDeviceTopology **ppTopology );
Parameters
ppTopology
[out] 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
Client: Windows Vista
Header: Include Devicetopology.h.
See Also
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