IDeviceTopology::GetConnector

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IDeviceTopology::GetConnector

The GetConnector method gets the connector that is specified by a connector number.

HRESULT GetConnector(
  UINT  nIndex,
  IConnector  **ppConnector
);

Parameters

nIndex

[in]  The connector number. If a device topology contains n connectors, the connectors are numbered 0 to n – 1. To get the number of connectors in the device topology, call the IDeviceTopology::GetConnectorCount method.

ppConnector

[out]  Pointer to a pointer variable into which the method writes the address of the IConnector interface of the connector object. 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 GetConnector call fails, *ppConnector 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_INVALIDARG Parameter nIndex is out of range.
E_POINTER Pointer ppConnector is NULL.

Remarks

For code examples that call the GetConnector method, see the implementations of the GetHardwareDeviceTopology and SelectCaptureDevice functions in Device Topologies.

Requirements

Client: Windows Vista

Header: Include Devicetopology.h.

See Also

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