Edit

Share via

FWPM_SERVICE_STATE_CHANGE_CALLBACK0 callback function (fwpmk.h)

  • Article

The FWPM_SERVICE_STATE_CHANGE_CALLBACK0 function is implemented by a WFP callout driver to add custom behavior to the base filtering engine (BFE) service state change notification process.

Syntax

FWPM_SERVICE_STATE_CHANGE_CALLBACK0 FwpmServiceStateChangeCallback0;

void FwpmServiceStateChangeCallback0(
  [in, out] void *context,
  [in]      FWPM_SERVICE_STATE newState
)
{...}

Parameters

[in, out] context

The pointer that was passed in the context parameter when the callout driver called the FwpmBfeStateSubscribeChanges0 function.

[in] newState

The new BFE service state being changed to.

Return value

Return code/value Description
ERROR_SUCCESS
0		 The enumerator was successfully deleted.
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

The filter engine calls this function whenever there is a change in the state of the filter engine.

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