Co-creating an Inserter or Multicast Class Instance

The example that follows illustrates the sequence for co-creating a CSendATVEFInserter object and obtaining its interfaces. Error checking has been omitted for the sake of simplicity.

    HRESULT                            hr;
    IUnknown*                          pIUnknown;
    IATVEFInserterConfig*            pIInserterConfig;
    IATVEFAnnouncement*            pIAnnouncement;
    IATVEFSend*                    pISend;
 
    hr = CoCreateInstance (
                    CLSID_CSendATVEFInserter,
                    NULL,
                    CLSCTX_SERVER,
                    IID_IUnknown,
                    (void **) &pIUnknown);
 
    hr = pIUnknown -> QueryInterface(
                    IID_IATVEFInserterConfig,
                   (void **) & pIInserterConfig
                   );
    hr = pIUnknown -> QueryInterface (
                   IID_IATVEFAnnouncement,
                   (void **) & pIAnnouncement
                   );
    hr = pIUnknown -> QueryInterface (
                   IID_IATVEFSend,
                   (void **) & pISend
                   );