IMFTopology::GetSourceNodeCollection method (mfidl.h)

Gets the source nodes in the topology.

Syntax

HRESULT GetSourceNodeCollection(
  [out] IMFCollection **ppCollection
);

Parameters

[out] ppCollection

Receives a pointer to the IMFCollection interface. The caller must release the pointer. The collection contains IUnknown pointers to all of the source nodes in the topology. Each pointer can be queried for the IMFTopologyNode interface. The collection might be empty.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

See also

IMFTopology

IMFTopologyNode::GetNodeType

Topologies