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Freeing Peer Data

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All pointers that the Peer Infrastructure functions return must be freed by using PeerGraphFreeData or PeerFreeData. These functions must only be called for structures that are directly returned by a Peer Infrastructure function. Do not call a different FreeData function to free nested pointers, for example, do not call a FreeData function on the pointers in a PEER_RECORD structure.

Example of Freeing Data

The following code snippet shows you how to retrieve the properties associated with a graph, and then free the data that is returned.

PEER_GRAPH_PROPERTIES  * pGraphProperties = NULL;
HRESULT hr = PeerGraphGetProperties(hGraph, &pGraphProperties);
if (SUCCEEDED(hr) && (NULL != pGraphProperties))
{
  // use pGraphProperties
  wprintf(L"%d\n", pGraphProperties->pwzGraphId);

  // release the data
  PeerGraphFreeData(pGraphProperties);
}