IBDA_Topology::GetControlNode method (bdaiface.h)

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The GetControlNode method retrieves an IUnknown interface pointer for a specified control node.

Syntax

HRESULT GetControlNode(
  [in]  ULONG    ulInputPinId,
  [in]  ULONG    ulOutputPinId,
  [in]  ULONG    ulNodeType,
  [out] IUnknown **ppControlNode
);

Parameters

[in] ulInputPinId

Specifies the identifier of the input pin for which a topology should be created.

[in] ulOutputPinId

Specifies the identifier of the output pin for which a topology should be created.

[in] ulNodeType

The type of node to be opened.

[out] ppControlNode

Pointer to a pointer to the control node's IUnknown interface

Return value

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Requirements

See also

Error and Success Codes

IBDA_Topology Interface