IBDA_Topology::GetControlNode Method

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

• ulInputPinId [in]
  Specifies the identifier of the input pin for which a topology should be created.

• ulOutputPinId [in]
  Specifies the identifier of the output pin for which a topology should be created.

• ulNodeType [in]
  The type of node to be opened.

• ppControlNode [out]
  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

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Build date: 12/4/2008