FwpmNetEventSubscribe2 function (fwpmu.h)

The FwpmNetEventSubscribe2 function is used to request the delivery of notifications regarding a particular net event.

Syntax

DWORD FwpmNetEventSubscribe2(
  [in]           HANDLE                             engineHandle,
  [in]           const FWPM_NET_EVENT_SUBSCRIPTION0 *subscription,
  [in]           FWPM_NET_EVENT_CALLBACK2           callback,
  [in, optional] void                               *context,
  [out]          HANDLE                             *eventsHandle
);

Parameters

[in] engineHandle

Handle for an open session to the filter engine. Call FwpmEngineOpen0 to open a session to the filter engine.

[in] subscription

An FWPM_NET_EVENT_SUBSCRIPTION0 structure which describes which notifications will be delivered.

[in] callback

Pointer to a function of type FWPM_NET_EVENT_CALLBACK2 that will be invoked when a notification is ready for delivery.

[in, optional] context

Optional context pointer. This pointer is passed to the callback function along with details of the event.

[out] eventsHandle

Handle to the newly created subscription. Call FwpmNetEventUnsubscribe0 to close this handle when the subscription is no longer needed.

Return value

Remarks

This function cannot be called from within a transaction. It will fail with FWP_E_TXN_IN_PROGRESS. See Object Management for more information about transactions.

The caller needs FWPM_ACTRL_SUBSCRIBE access to the net event's container.

Requirements

See also

FWPM_NET_EVENT_CALLBACK2

FWPM_NET_EVENT_SUBSCRIPTION0

FwpmNetEventUnsubscribe0