IPsecGetStatistics1

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

DWORD IPsecGetStatistics1(
    FWPM_ENGINE_HANDLE engineHandle,
    IPSEC_STATISTICS1* ipsecStatistics
);

<DllImport("fwpuclnt.dll", ExactSpelling:=True)>
Public Shared Function IPsecGetStatistics1(
    engineHandle As FWPM_ENGINE_HANDLE,   ' FWPM_ENGINE_HANDLE
    ipsecStatistics As IntPtr   ' IPSEC_STATISTICS1* out
) As UInteger
End Function

' engineHandle : FWPM_ENGINE_HANDLE
' ipsecStatistics : IPSEC_STATISTICS1* out
Declare PtrSafe Function IPsecGetStatistics1 Lib "fwpuclnt" ( _
    ByVal engineHandle As LongPtr, _
    ByVal ipsecStatistics 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

IPsecGetStatistics1 = ctypes.windll.fwpuclnt.IPsecGetStatistics1
IPsecGetStatistics1.restype = wintypes.DWORD
IPsecGetStatistics1.argtypes = [
    FWPM_ENGINE_HANDLE,  # engineHandle : FWPM_ENGINE_HANDLE
    ctypes.c_void_p,  # ipsecStatistics : IPSEC_STATISTICS1* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('fwpuclnt.dll')
IPsecGetStatistics1 = Fiddle::Function.new(
  lib['IPsecGetStatistics1'],
  [
    Fiddle::TYPE_VOIDP,  # engineHandle : FWPM_ENGINE_HANDLE
    Fiddle::TYPE_VOIDP,  # ipsecStatistics : IPSEC_STATISTICS1* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "fwpuclnt")]
extern "system" {
    fn IPsecGetStatistics1(
        engineHandle: FWPM_ENGINE_HANDLE,  // FWPM_ENGINE_HANDLE
        ipsecStatistics: *mut IPSEC_STATISTICS1  // IPSEC_STATISTICS1* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("fwpuclnt.dll")]
public static extern uint IPsecGetStatistics1(FWPM_ENGINE_HANDLE engineHandle, IntPtr ipsecStatistics);
"@
$api = Add-Type -MemberDefinition $sig -Name 'fwpuclnt_IPsecGetStatistics1' -Namespace Win32 -PassThru
# $api::IPsecGetStatistics1(engineHandle, ipsecStatistics)

#uselib "fwpuclnt.dll"
#func global IPsecGetStatistics1 "IPsecGetStatistics1" sptr, sptr
; IPsecGetStatistics1 engineHandle, varptr(ipsecStatistics)   ; 戻り値は stat
; engineHandle : FWPM_ENGINE_HANDLE -> "sptr"
; ipsecStatistics : IPSEC_STATISTICS1* 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")
	procIPsecGetStatistics1 = fwpuclnt.NewProc("IPsecGetStatistics1")
)

// engineHandle (FWPM_ENGINE_HANDLE), ipsecStatistics (IPSEC_STATISTICS1* out)
r1, _, err := procIPsecGetStatistics1.Call(
	uintptr(engineHandle),
	uintptr(ipsecStatistics),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function IPsecGetStatistics1(
  engineHandle: FWPM_ENGINE_HANDLE;   // FWPM_ENGINE_HANDLE
  ipsecStatistics: Pointer   // IPSEC_STATISTICS1* out
): DWORD; stdcall;
  external 'fwpuclnt.dll' name 'IPsecGetStatistics1';

result := DllCall("fwpuclnt\IPsecGetStatistics1"
    , "Ptr", engineHandle   ; FWPM_ENGINE_HANDLE
    , "Ptr", ipsecStatistics   ; IPSEC_STATISTICS1* out
    , "UInt")   ; return: DWORD

●IPsecGetStatistics1(engineHandle, ipsecStatistics) = DLL("fwpuclnt.dll", "dword IPsecGetStatistics1(void*, void*)")
# 呼び出し: IPsecGetStatistics1(engineHandle, ipsecStatistics)
# engineHandle : FWPM_ENGINE_HANDLE -> "void*"
# ipsecStatistics : IPSEC_STATISTICS1* 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 IPsecGetStatistics1(
    engineHandle: FWPM_ENGINE_HANDLE, // FWPM_ENGINE_HANDLE
    ipsecStatistics: [*c]IPSEC_STATISTICS1 // IPSEC_STATISTICS1* out
) callconv(std.os.windows.WINAPI) u32;

proc IPsecGetStatistics1(
    engineHandle: FWPM_ENGINE_HANDLE,  # FWPM_ENGINE_HANDLE
    ipsecStatistics: ptr IPSEC_STATISTICS1  # IPSEC_STATISTICS1* out
): uint32 {.importc: "IPsecGetStatistics1", stdcall, dynlib: "fwpuclnt.dll".}

pragma(lib, "fwpuclnt");
extern(Windows)
uint IPsecGetStatistics1(
    FWPM_ENGINE_HANDLE engineHandle,   // FWPM_ENGINE_HANDLE
    IPSEC_STATISTICS1* ipsecStatistics   // IPSEC_STATISTICS1* out
);

ccall((:IPsecGetStatistics1, "fwpuclnt.dll"), stdcall, UInt32,
      (FWPM_ENGINE_HANDLE, Ptr{IPSEC_STATISTICS1}),
      engineHandle, ipsecStatistics)
# engineHandle : FWPM_ENGINE_HANDLE -> FWPM_ENGINE_HANDLE
# ipsecStatistics : IPSEC_STATISTICS1* out -> Ptr{IPSEC_STATISTICS1}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t IPsecGetStatistics1(
    FWPM_ENGINE_HANDLE engineHandle,
    void* ipsecStatistics);
]]
local fwpuclnt = ffi.load("fwpuclnt")
-- fwpuclnt.IPsecGetStatistics1(engineHandle, ipsecStatistics)
-- engineHandle : FWPM_ENGINE_HANDLE
-- ipsecStatistics : IPSEC_STATISTICS1* 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 IPsecGetStatistics1 = lib.func('__stdcall', 'IPsecGetStatistics1', 'uint32_t', ['FWPM_ENGINE_HANDLE', 'void *']);
// IPsecGetStatistics1(engineHandle, ipsecStatistics)
// engineHandle : FWPM_ENGINE_HANDLE -> 'FWPM_ENGINE_HANDLE'
// ipsecStatistics : IPSEC_STATISTICS1* 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", {
  IPsecGetStatistics1: { parameters: ["buffer", "pointer"], result: "u32" },
});
// lib.symbols.IPsecGetStatistics1(engineHandle, ipsecStatistics)
// engineHandle : FWPM_ENGINE_HANDLE -> "buffer"
// ipsecStatistics : IPSEC_STATISTICS1* 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 IPsecGetStatistics1(
    FWPM_ENGINE_HANDLE engineHandle,
    void* ipsecStatistics);
C, "fwpuclnt.dll");
// $ffi->IPsecGetStatistics1(engineHandle, ipsecStatistics);
// engineHandle : FWPM_ENGINE_HANDLE
// ipsecStatistics : IPSEC_STATISTICS1* 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 IPsecGetStatistics1(
        FWPM_ENGINE_HANDLE /* extends Structure (by value) */ engineHandle,   // FWPM_ENGINE_HANDLE
        Pointer ipsecStatistics   // IPSEC_STATISTICS1* out
    );
}

@[Link("fwpuclnt")]
lib Libfwpuclnt
  fun IPsecGetStatistics1 = IPsecGetStatistics1(
    engineHandle : FWPM_ENGINE_HANDLE,   # FWPM_ENGINE_HANDLE
    ipsecStatistics : IPSEC_STATISTICS1*   # IPSEC_STATISTICS1* 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 IPsecGetStatistics1Native = Uint32 Function(FWPM_ENGINE_HANDLE, Pointer<Void>);
typedef IPsecGetStatistics1Dart = int Function(int, Pointer<Void>);
final IPsecGetStatistics1 = DynamicLibrary.open('fwpuclnt.dll')
    .lookupFunction<IPsecGetStatistics1Native, IPsecGetStatistics1Dart>('IPsecGetStatistics1');
// engineHandle : FWPM_ENGINE_HANDLE -> FWPM_ENGINE_HANDLE
// ipsecStatistics : IPSEC_STATISTICS1* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function IPsecGetStatistics1(
  engineHandle: FWPM_ENGINE_HANDLE;   // FWPM_ENGINE_HANDLE
  ipsecStatistics: Pointer   // IPSEC_STATISTICS1* out
): DWORD; stdcall;
  external 'fwpuclnt.dll' name 'IPsecGetStatistics1';

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

foreign import stdcall safe "IPsecGetStatistics1"
  c_IPsecGetStatistics1 :: FWPM_ENGINE_HANDLE -> Ptr () -> IO Word32
-- engineHandle : FWPM_ENGINE_HANDLE -> FWPM_ENGINE_HANDLE
-- ipsecStatistics : IPSEC_STATISTICS1* 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 ipsecgetstatistics1 =
  foreign "IPsecGetStatistics1"
    (FWPM_ENGINE_HANDLE @-> (ptr void) @-> returning uint32_t)
(* engineHandle : FWPM_ENGINE_HANDLE -> FWPM_ENGINE_HANDLE *)
(* ipsecStatistics : IPSEC_STATISTICS1* 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 ("IPsecGetStatistics1" ipsec-get-statistics1 :convention :stdcall) :uint32
  (engine-handle (:struct fwpm-engine-handle))   ; FWPM_ENGINE_HANDLE
  (ipsec-statistics :pointer))   ; IPSEC_STATISTICS1* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $IPsecGetStatistics1 = Win32::API::More->new('fwpuclnt',
    'DWORD IPsecGetStatistics1(LPVOID engineHandle, LPVOID ipsecStatistics)');
# my $ret = $IPsecGetStatistics1->Call($engineHandle, $ipsecStatistics);
# engineHandle : FWPM_ENGINE_HANDLE -> LPVOID
# ipsecStatistics : IPSEC_STATISTICS1* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。