FwpmNetEventEnum4 function (fwpmk.h)

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The FwpmNetEventEnum4 function returns the next page of results from the network event enumerator.

Syntax

NTSTATUS FwpmNetEventEnum4(
  [in]  HANDLE          engineHandle,
  [in]  HANDLE          enumHandle,
  [in]  UINT32          numEntriesRequested,
  [out] FWPM_NET_EVENT4 ***entries,
  [out] UINT32          *numEntriesReturned
);

Parameters

[in] engineHandle

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

[in] enumHandle

Handle for a network event enumeration created by a call to FwpmNetEventCreateEnumHandle0.

[in] numEntriesRequested

The number of enumeration entries requested.

[out] entries

Addresses of enumeration entries.

[out] numEntriesReturned

The number of enumeration entries returned.

Return value

Return code/value Description
ERROR_SUCCESS
0		 The network events were enumerated successfully.
FWP_E_NET_EVENTS_DISABLED
0x80320013		 The collection of network diagnostic events is disabled. Call FwpmEngineSetOption0 to enable it.
FWP_E_* error code
0x80320001—0x80320039		 A Windows Filtering Platform (WFP) specific error. See WFP Error Codes for details.
RPC_* error code
0x80010001—0x80010122		 Failure to communicate with the remote or local firewall engine.
Other NTSTATUS codes An error occurred.

Remarks

If the numEntriesReturned is less than the numEntriesRequested, the enumeration is exhausted.

The returned array of entries (but not the individual entries themselves) must be freed by a call to FwpmFreeMemory0.

A subsequent call that uses the same enumHandle parameter returns the next set of events following those in the current entries buffer.

FwpmNetEventEnum4 returns only events that were logged prior to the creation of the enumHandle parameter. See Logging for more information.

FwpmNetEventEnum4 is a specific implementation of FwpmNetEventEnum. See WFP Version-Independent Names and Targeting Specific Versions of Windows for more information.

Requirements

Requirement Value
Minimum supported client Available starting with Windows Vista.
Target Platform Universal
Header fwpmk.h
Library fwpkclnt.lib
IRQL <= PASSIVE_LEVEL

See also