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FwpmFilterEnum0 (Compact 7)

  • Article

3/12/2014

This function returns the next page of results from the filter enumerator.

Syntax

DWORD WINAPI FwpmFilterEnum0(
  __in   HANDLE engineHandle,
  __in   HANDLE enumHandle,
  __in   UINT32 numEntriesRequested,
  __out  FWPM_FILTER0*** entries,
  __out  UINT32* numEntriesReturned
);

Parameters

  • engineHandle
    A handle for an open session to the filter engine. Call FwpmEngineOpen0 to open a session to the filter engine.
  • numEntriesRequested
    Number of filter objects requested
  • entries
    Number of filter objects requested
  • numEntriesReturned
    Pointer to an UINT32 variable that will contain the number of filter objects returned

Return Value

Return code / value Description

ERROR_SUCCESS

0

The filters were enumerated successfully

FWP_E_* error code

0x80320001-0x80320039

A Windows Filtering Platform (WFP) specific error. See topic WFP Error Codes for details.

RPC_* error code

0x80010001-0x80010122

Failure to communicate with the remote or local firewall engine

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 using the same enumeration handle will return the next set of items following those in the last output buffer.

FwpmFilterEnum0 works on a snapshot of the filters taken at the time the enumeration handle was created.

Requirements

Header

fwpmu.h

Library

fwpuclnt.dll

See Also

Reference

WFP Filter Management
FwpmFreeMemory0

Other Resources

Windows Filtering Platform