IPsecSaContextCreate0

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

DWORD IPsecSaContextCreate0(
    FWPM_ENGINE_HANDLE engineHandle,
    const IPSEC_TRAFFIC0* outboundTraffic,
    ULONGLONG* inboundFilterId,   // optional
    ULONGLONG* id
);

<DllImport("fwpuclnt.dll", ExactSpelling:=True)>
Public Shared Function IPsecSaContextCreate0(
    engineHandle As FWPM_ENGINE_HANDLE,   ' FWPM_ENGINE_HANDLE
    outboundTraffic As IntPtr,   ' IPSEC_TRAFFIC0*
    inboundFilterId As IntPtr,   ' ULONGLONG* optional, out
    <Out> ByRef id As ULong   ' ULONGLONG* out
) As UInteger
End Function

' engineHandle : FWPM_ENGINE_HANDLE
' outboundTraffic : IPSEC_TRAFFIC0*
' inboundFilterId : ULONGLONG* optional, out
' id : ULONGLONG* out
Declare PtrSafe Function IPsecSaContextCreate0 Lib "fwpuclnt" ( _
    ByVal engineHandle As LongPtr, _
    ByVal outboundTraffic As LongPtr, _
    ByVal inboundFilterId As LongPtr, _
    ByRef id As LongLong) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

IPsecSaContextCreate0 = ctypes.windll.fwpuclnt.IPsecSaContextCreate0
IPsecSaContextCreate0.restype = wintypes.DWORD
IPsecSaContextCreate0.argtypes = [
    FWPM_ENGINE_HANDLE,  # engineHandle : FWPM_ENGINE_HANDLE
    ctypes.c_void_p,  # outboundTraffic : IPSEC_TRAFFIC0*
    ctypes.POINTER(ctypes.c_ulonglong),  # inboundFilterId : ULONGLONG* optional, out
    ctypes.POINTER(ctypes.c_ulonglong),  # id : ULONGLONG* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('fwpuclnt.dll')
IPsecSaContextCreate0 = Fiddle::Function.new(
  lib['IPsecSaContextCreate0'],
  [
    Fiddle::TYPE_VOIDP,  # engineHandle : FWPM_ENGINE_HANDLE
    Fiddle::TYPE_VOIDP,  # outboundTraffic : IPSEC_TRAFFIC0*
    Fiddle::TYPE_VOIDP,  # inboundFilterId : ULONGLONG* optional, out
    Fiddle::TYPE_VOIDP,  # id : ULONGLONG* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "fwpuclnt")]
extern "system" {
    fn IPsecSaContextCreate0(
        engineHandle: FWPM_ENGINE_HANDLE,  // FWPM_ENGINE_HANDLE
        outboundTraffic: *const IPSEC_TRAFFIC0,  // IPSEC_TRAFFIC0*
        inboundFilterId: *mut u64,  // ULONGLONG* optional, out
        id: *mut u64  // ULONGLONG* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("fwpuclnt.dll")]
public static extern uint IPsecSaContextCreate0(FWPM_ENGINE_HANDLE engineHandle, IntPtr outboundTraffic, IntPtr inboundFilterId, out ulong id);
"@
$api = Add-Type -MemberDefinition $sig -Name 'fwpuclnt_IPsecSaContextCreate0' -Namespace Win32 -PassThru
# $api::IPsecSaContextCreate0(engineHandle, outboundTraffic, inboundFilterId, id)

#uselib "fwpuclnt.dll"
#func global IPsecSaContextCreate0 "IPsecSaContextCreate0" sptr, sptr, sptr, sptr
; IPsecSaContextCreate0 engineHandle, varptr(outboundTraffic), varptr(inboundFilterId), varptr(id)   ; 戻り値は stat
; engineHandle : FWPM_ENGINE_HANDLE -> "sptr"
; outboundTraffic : IPSEC_TRAFFIC0* -> "sptr"
; inboundFilterId : ULONGLONG* optional, out -> "sptr"
; id : ULONGLONG* 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。

#uselib "fwpuclnt.dll"
#cfunc global IPsecSaContextCreate0 "IPsecSaContextCreate0" int, var, var, var
; res = IPsecSaContextCreate0(engineHandle, outboundTraffic, inboundFilterId, id)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; outboundTraffic : IPSEC_TRAFFIC0* -> "var"
; inboundFilterId : ULONGLONG* optional, out -> "var"
; id : ULONGLONG* out -> "var"
; ※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。
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; DWORD IPsecSaContextCreate0(FWPM_ENGINE_HANDLE engineHandle, IPSEC_TRAFFIC0* outboundTraffic, ULONGLONG* inboundFilterId, ULONGLONG* id)
#uselib "fwpuclnt.dll"
#cfunc global IPsecSaContextCreate0 "IPsecSaContextCreate0" int, var, var, var
; res = IPsecSaContextCreate0(engineHandle, outboundTraffic, inboundFilterId, id)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; outboundTraffic : IPSEC_TRAFFIC0* -> "var"
; inboundFilterId : ULONGLONG* optional, out -> "var"
; id : ULONGLONG* out -> "var"
; ※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。
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	fwpuclnt = windows.NewLazySystemDLL("fwpuclnt.dll")
	procIPsecSaContextCreate0 = fwpuclnt.NewProc("IPsecSaContextCreate0")
)

// engineHandle (FWPM_ENGINE_HANDLE), outboundTraffic (IPSEC_TRAFFIC0*), inboundFilterId (ULONGLONG* optional, out), id (ULONGLONG* out)
r1, _, err := procIPsecSaContextCreate0.Call(
	uintptr(engineHandle),
	uintptr(outboundTraffic),
	uintptr(inboundFilterId),
	uintptr(id),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function IPsecSaContextCreate0(
  engineHandle: FWPM_ENGINE_HANDLE;   // FWPM_ENGINE_HANDLE
  outboundTraffic: Pointer;   // IPSEC_TRAFFIC0*
  inboundFilterId: Pointer;   // ULONGLONG* optional, out
  id: Pointer   // ULONGLONG* out
): DWORD; stdcall;
  external 'fwpuclnt.dll' name 'IPsecSaContextCreate0';

result := DllCall("fwpuclnt\IPsecSaContextCreate0"
    , "Ptr", engineHandle   ; FWPM_ENGINE_HANDLE
    , "Ptr", outboundTraffic   ; IPSEC_TRAFFIC0*
    , "Ptr", inboundFilterId   ; ULONGLONG* optional, out
    , "Ptr", id   ; ULONGLONG* out
    , "UInt")   ; return: DWORD

●IPsecSaContextCreate0(engineHandle, outboundTraffic, inboundFilterId, id) = DLL("fwpuclnt.dll", "dword IPsecSaContextCreate0(void*, void*, void*, void*)")
# 呼び出し: IPsecSaContextCreate0(engineHandle, outboundTraffic, inboundFilterId, id)
# engineHandle : FWPM_ENGINE_HANDLE -> "void*"
# outboundTraffic : IPSEC_TRAFFIC0* -> "void*"
# inboundFilterId : ULONGLONG* optional, out -> "void*"
# id : ULONGLONG* 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)。