FwpmProviderContextGetByKey0 function (fwpmu.h)

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The FwpmProviderContextGetByKey0 function retrieves a provider context.

Note  FwpmProviderContextGetByKey0 is the specific implementation of FwpmProviderContextGetByKey used in Windows Vista. See WFP Version-Independent Names and Targeting Specific Versions of Windows for more information. For Windows 7, FwpmProviderContextGetByKey1 is available. For Windows 8, FwpmProviderContextGetByKey2 is available.

 

Syntax

DWORD FwpmProviderContextGetByKey0(
  [in]  HANDLE                 engineHandle,
  [in]  const GUID             *key,
  [out] FWPM_PROVIDER_CONTEXT0 **providerContext
);

Parameters

[in] engineHandle

Type: HANDLE

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

[in] key

Type: const GUID*

Pointer to a GUID that uniquely identifies the provider context. This is a pointer to the same GUID that was specified when the application called FwpmProviderContextAdd0 for this object.

[out] providerContext

Type: FWPM_PROVIDER_CONTEXT0**

The provider context information.

Return value

Type: DWORD

Return code/value Description
ERROR_SUCCESS
0
 The provider context was retrieved successfully.
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.

Remarks

The caller must free the returned object by a call to FwpmFreeMemory0.

The caller needs FWPM_ACTRL_READ access to the provider context. See Access Control for more information.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header fwpmu.h
Library Fwpuclnt.lib
DLL Fwpuclnt.dll

See also

FWPM_PROVIDER_CONTEXT0

FwpmProviderContextAdd0