FwpmProviderContextGetByKey2

// fwpuclnt.dll
#include <windows.h>

DWORD FwpmProviderContextGetByKey2(
    FWPM_ENGINE_HANDLE engineHandle,
    const GUID* key,
    FWPM_PROVIDER_CONTEXT2** providerContext
);

<DllImport("fwpuclnt.dll", ExactSpelling:=True)>
Public Shared Function FwpmProviderContextGetByKey2(
    engineHandle As FWPM_ENGINE_HANDLE,   ' FWPM_ENGINE_HANDLE
    ByRef key As Guid,   ' GUID*
    providerContext As IntPtr   ' FWPM_PROVIDER_CONTEXT2** out
) As UInteger
End Function

' engineHandle : FWPM_ENGINE_HANDLE
' key : GUID*
' providerContext : FWPM_PROVIDER_CONTEXT2** out
Declare PtrSafe Function FwpmProviderContextGetByKey2 Lib "fwpuclnt" ( _
    ByVal engineHandle As LongPtr, _
    ByVal key As LongPtr, _
    ByVal providerContext As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

FwpmProviderContextGetByKey2 = ctypes.windll.fwpuclnt.FwpmProviderContextGetByKey2
FwpmProviderContextGetByKey2.restype = wintypes.DWORD
FwpmProviderContextGetByKey2.argtypes = [
    FWPM_ENGINE_HANDLE,  # engineHandle : FWPM_ENGINE_HANDLE
    ctypes.c_void_p,  # key : GUID*
    ctypes.c_void_p,  # providerContext : FWPM_PROVIDER_CONTEXT2** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('fwpuclnt.dll')
FwpmProviderContextGetByKey2 = Fiddle::Function.new(
  lib['FwpmProviderContextGetByKey2'],
  [
    Fiddle::TYPE_VOIDP,  # engineHandle : FWPM_ENGINE_HANDLE
    Fiddle::TYPE_VOIDP,  # key : GUID*
    Fiddle::TYPE_VOIDP,  # providerContext : FWPM_PROVIDER_CONTEXT2** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "fwpuclnt")]
extern "system" {
    fn FwpmProviderContextGetByKey2(
        engineHandle: FWPM_ENGINE_HANDLE,  // FWPM_ENGINE_HANDLE
        key: *const GUID,  // GUID*
        providerContext: *mut *mut FWPM_PROVIDER_CONTEXT2  // FWPM_PROVIDER_CONTEXT2** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("fwpuclnt.dll")]
public static extern uint FwpmProviderContextGetByKey2(FWPM_ENGINE_HANDLE engineHandle, ref Guid key, IntPtr providerContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'fwpuclnt_FwpmProviderContextGetByKey2' -Namespace Win32 -PassThru
# $api::FwpmProviderContextGetByKey2(engineHandle, key, providerContext)

#uselib "fwpuclnt.dll"
#func global FwpmProviderContextGetByKey2 "FwpmProviderContextGetByKey2" sptr, sptr, sptr
; FwpmProviderContextGetByKey2 engineHandle, varptr(key), varptr(providerContext)   ; 戻り値は stat
; engineHandle : FWPM_ENGINE_HANDLE -> "sptr"
; key : GUID* -> "sptr"
; providerContext : FWPM_PROVIDER_CONTEXT2** out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	fwpuclnt = windows.NewLazySystemDLL("fwpuclnt.dll")
	procFwpmProviderContextGetByKey2 = fwpuclnt.NewProc("FwpmProviderContextGetByKey2")
)

// engineHandle (FWPM_ENGINE_HANDLE), key (GUID*), providerContext (FWPM_PROVIDER_CONTEXT2** out)
r1, _, err := procFwpmProviderContextGetByKey2.Call(
	uintptr(engineHandle),
	uintptr(key),
	uintptr(providerContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function FwpmProviderContextGetByKey2(
  engineHandle: FWPM_ENGINE_HANDLE;   // FWPM_ENGINE_HANDLE
  key: PGUID;   // GUID*
  providerContext: Pointer   // FWPM_PROVIDER_CONTEXT2** out
): DWORD; stdcall;
  external 'fwpuclnt.dll' name 'FwpmProviderContextGetByKey2';

result := DllCall("fwpuclnt\FwpmProviderContextGetByKey2"
    , "Ptr", engineHandle   ; FWPM_ENGINE_HANDLE
    , "Ptr", key   ; GUID*
    , "Ptr", providerContext   ; FWPM_PROVIDER_CONTEXT2** out
    , "UInt")   ; return: DWORD

●FwpmProviderContextGetByKey2(engineHandle, key, providerContext) = DLL("fwpuclnt.dll", "dword FwpmProviderContextGetByKey2(void*, void*, void*)")
# 呼び出し: FwpmProviderContextGetByKey2(engineHandle, key, providerContext)
# engineHandle : FWPM_ENGINE_HANDLE -> "void*"
# key : GUID* -> "void*"
# providerContext : FWPM_PROVIDER_CONTEXT2** out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。

const std = @import("std");

extern "fwpuclnt" fn FwpmProviderContextGetByKey2(
    engineHandle: FWPM_ENGINE_HANDLE, // FWPM_ENGINE_HANDLE
    key: [*c]GUID, // GUID*
    providerContext: [*c][*c]FWPM_PROVIDER_CONTEXT2 // FWPM_PROVIDER_CONTEXT2** out
) callconv(std.os.windows.WINAPI) u32;

proc FwpmProviderContextGetByKey2(
    engineHandle: FWPM_ENGINE_HANDLE,  # FWPM_ENGINE_HANDLE
    key: ptr GUID,  # GUID*
    providerContext: ptr FWPM_PROVIDER_CONTEXT2  # FWPM_PROVIDER_CONTEXT2** out
): uint32 {.importc: "FwpmProviderContextGetByKey2", stdcall, dynlib: "fwpuclnt.dll".}

pragma(lib, "fwpuclnt");
extern(Windows)
uint FwpmProviderContextGetByKey2(
    FWPM_ENGINE_HANDLE engineHandle,   // FWPM_ENGINE_HANDLE
    GUID* key,   // GUID*
    FWPM_PROVIDER_CONTEXT2** providerContext   // FWPM_PROVIDER_CONTEXT2** out
);

ccall((:FwpmProviderContextGetByKey2, "fwpuclnt.dll"), stdcall, UInt32,
      (FWPM_ENGINE_HANDLE, Ptr{GUID}, Ptr{FWPM_PROVIDER_CONTEXT2}),
      engineHandle, key, providerContext)
# engineHandle : FWPM_ENGINE_HANDLE -> FWPM_ENGINE_HANDLE
# key : GUID* -> Ptr{GUID}
# providerContext : FWPM_PROVIDER_CONTEXT2** out -> Ptr{FWPM_PROVIDER_CONTEXT2}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t FwpmProviderContextGetByKey2(
    FWPM_ENGINE_HANDLE engineHandle,
    void* key,
    void* providerContext);
]]
local fwpuclnt = ffi.load("fwpuclnt")
-- fwpuclnt.FwpmProviderContextGetByKey2(engineHandle, key, providerContext)
-- engineHandle : FWPM_ENGINE_HANDLE
-- key : GUID*
-- providerContext : FWPM_PROVIDER_CONTEXT2** out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('fwpuclnt.dll');
const FwpmProviderContextGetByKey2 = lib.func('__stdcall', 'FwpmProviderContextGetByKey2', 'uint32_t', ['FWPM_ENGINE_HANDLE', 'void *', 'void *']);
// FwpmProviderContextGetByKey2(engineHandle, key, providerContext)
// engineHandle : FWPM_ENGINE_HANDLE -> 'FWPM_ENGINE_HANDLE'
// key : GUID* -> 'void *'
// providerContext : FWPM_PROVIDER_CONTEXT2** out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("fwpuclnt.dll", {
  FwpmProviderContextGetByKey2: { parameters: ["buffer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.FwpmProviderContextGetByKey2(engineHandle, key, providerContext)
// engineHandle : FWPM_ENGINE_HANDLE -> "buffer"
// key : GUID* -> "pointer"
// providerContext : FWPM_PROVIDER_CONTEXT2** out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t FwpmProviderContextGetByKey2(
    FWPM_ENGINE_HANDLE engineHandle,
    void* key,
    void* providerContext);
C, "fwpuclnt.dll");
// $ffi->FwpmProviderContextGetByKey2(engineHandle, key, providerContext);
// engineHandle : FWPM_ENGINE_HANDLE
// key : GUID*
// providerContext : FWPM_PROVIDER_CONTEXT2** out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Fwpuclnt extends StdCallLibrary {
    Fwpuclnt INSTANCE = Native.load("fwpuclnt", Fwpuclnt.class);
    int FwpmProviderContextGetByKey2(
        FWPM_ENGINE_HANDLE /* extends Structure (by value) */ engineHandle,   // FWPM_ENGINE_HANDLE
        Pointer key,   // GUID*
        Pointer providerContext   // FWPM_PROVIDER_CONTEXT2** out
    );
}

@[Link("fwpuclnt")]
lib Libfwpuclnt
  fun FwpmProviderContextGetByKey2 = FwpmProviderContextGetByKey2(
    engineHandle : FWPM_ENGINE_HANDLE,   # FWPM_ENGINE_HANDLE
    key : GUID*,   # GUID*
    providerContext : FWPM_PROVIDER_CONTEXT2**   # FWPM_PROVIDER_CONTEXT2** out
  ) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef FwpmProviderContextGetByKey2Native = Uint32 Function(FWPM_ENGINE_HANDLE, Pointer<Void>, Pointer<Void>);
typedef FwpmProviderContextGetByKey2Dart = int Function(int, Pointer<Void>, Pointer<Void>);
final FwpmProviderContextGetByKey2 = DynamicLibrary.open('fwpuclnt.dll')
    .lookupFunction<FwpmProviderContextGetByKey2Native, FwpmProviderContextGetByKey2Dart>('FwpmProviderContextGetByKey2');
// engineHandle : FWPM_ENGINE_HANDLE -> FWPM_ENGINE_HANDLE
// key : GUID* -> Pointer<Void>
// providerContext : FWPM_PROVIDER_CONTEXT2** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function FwpmProviderContextGetByKey2(
  engineHandle: FWPM_ENGINE_HANDLE;   // FWPM_ENGINE_HANDLE
  key: PGUID;   // GUID*
  providerContext: Pointer   // FWPM_PROVIDER_CONTEXT2** out
): DWORD; stdcall;
  external 'fwpuclnt.dll' name 'FwpmProviderContextGetByKey2';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "FwpmProviderContextGetByKey2"
  c_FwpmProviderContextGetByKey2 :: FWPM_ENGINE_HANDLE -> Ptr () -> Ptr () -> IO Word32
-- engineHandle : FWPM_ENGINE_HANDLE -> FWPM_ENGINE_HANDLE
-- key : GUID* -> Ptr ()
-- providerContext : FWPM_PROVIDER_CONTEXT2** out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
-- ※値渡し構造体は GHC FFI で直接渡せません。Ptr で渡すラッパ(C側)経由にしてください。

open Ctypes
open Foreign

let fwpmprovidercontextgetbykey2 =
  foreign "FwpmProviderContextGetByKey2"
    (FWPM_ENGINE_HANDLE @-> (ptr void) @-> (ptr void) @-> returning uint32_t)
(* engineHandle : FWPM_ENGINE_HANDLE -> FWPM_ENGINE_HANDLE *)
(* key : GUID* -> (ptr void) *)
(* providerContext : FWPM_PROVIDER_CONTEXT2** out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library fwpuclnt (t "fwpuclnt.dll"))
(cffi:use-foreign-library fwpuclnt)

(cffi:defcfun ("FwpmProviderContextGetByKey2" fwpm-provider-context-get-by-key2 :convention :stdcall) :uint32
  (engine-handle (:struct fwpm-engine-handle))   ; FWPM_ENGINE_HANDLE
  (key :pointer)   ; GUID*
  (provider-context :pointer))   ; FWPM_PROVIDER_CONTEXT2** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $FwpmProviderContextGetByKey2 = Win32::API::More->new('fwpuclnt',
    'DWORD FwpmProviderContextGetByKey2(LPVOID engineHandle, LPVOID key, LPVOID providerContext)');
# my $ret = $FwpmProviderContextGetByKey2->Call($engineHandle, $key, $providerContext);
# engineHandle : FWPM_ENGINE_HANDLE -> LPVOID
# key : GUID* -> LPVOID
# providerContext : FWPM_PROVIDER_CONTEXT2** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。