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IBDA_Topology::GetNodeDescriptors

  • Artigo
 
Microsoft DirectShow 9.0

IBDA_Topology::GetNodeDescriptors

The GetNodeDescriptors method retrieves a list of descriptors for the nodes in the topology.

Syntax

  HRESULT GetNodeDescriptors(
  ULONG*  ulcNodeDescriptors,
  ULONG  ulcNodeDescriptorsMax,
  BDANODE_DESCRIPTOR  rgNodeDescriptors[]
);

Parameters

  ulcNodeDescriptors

[in, out]  Receives a count of the number of node descriptors written to the rgNodeDescriptors array.

  ulcNodeDescriptorsMax

[in]  Specifies the maximum number of node descriptors that the rgNodeDescriptors array can hold.

  rgNodeDescriptors[]

[in, out]  Pointer to a buffer that receives an array of node descriptors. Each node descriptor is a structure of type BDANODE_DESCRIPTOR.

Return Values

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

Requirements

Header: Include Bdaiface.h.

See Also