LOENREQUEST

LogOpenEventNotification parameter packet.  typedef struct _LOENREQUEST { ULONG           packet_size; ULONG           packet_revision_number; ULONG           log_file_ID; ULONG           read_flags; PULONG          pLogNotify; PFILTERBLOCK    pFilter; } LOENREQUEST;

typedef  LOENREQUEST   * PLOENREQUEST ; 

Use appropriate packet_revision_number to indicate whether character data in the parameter packet is in UniCode or ASCII format.