3.17.4.1.26 CorrelationId (Opnum 32)

The CorrelationId method is received by the server in an RPC_REQUEST packet. In response, the server MUST return the application-specific Message.CorrelationIdentifier.

 [propget] HRESULT CorrelationId(
   [out, retval] VARIANT* pvarMsgId
 );

pvarMsgId: A VARIANT array of BYTES (VT_ARRAY | VT_UI1) that contains the application-specific CorrelationIdentifier for the Message.

Return Values: The method MUST return S_OK (0x00000000) on success or an implementation-specific error HRESULT on failure.

When processing this call, the server MUST follow these guidelines:

  • Set the pvarMsgId output parameter to the value of the represented Message.CorrelationIdentifier.