IPsecSaContextGetSpi0

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

DWORD IPsecSaContextGetSpi0(
    FWPM_ENGINE_HANDLE engineHandle,
    ULONGLONG id,
    const IPSEC_GETSPI0* getSpi,
    DWORD* inboundSpi
);

<DllImport("fwpuclnt.dll", ExactSpelling:=True)>
Public Shared Function IPsecSaContextGetSpi0(
    engineHandle As FWPM_ENGINE_HANDLE,   ' FWPM_ENGINE_HANDLE
    id As ULong,   ' ULONGLONG
    getSpi As IntPtr,   ' IPSEC_GETSPI0*
    <Out> ByRef inboundSpi As UInteger   ' DWORD* out
) As UInteger
End Function

' engineHandle : FWPM_ENGINE_HANDLE
' id : ULONGLONG
' getSpi : IPSEC_GETSPI0*
' inboundSpi : DWORD* out
Declare PtrSafe Function IPsecSaContextGetSpi0 Lib "fwpuclnt" ( _
    ByVal engineHandle As LongPtr, _
    ByVal id As LongLong, _
    ByVal getSpi As LongPtr, _
    ByRef inboundSpi As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

IPsecSaContextGetSpi0 = ctypes.windll.fwpuclnt.IPsecSaContextGetSpi0
IPsecSaContextGetSpi0.restype = wintypes.DWORD
IPsecSaContextGetSpi0.argtypes = [
    FWPM_ENGINE_HANDLE,  # engineHandle : FWPM_ENGINE_HANDLE
    ctypes.c_ulonglong,  # id : ULONGLONG
    ctypes.c_void_p,  # getSpi : IPSEC_GETSPI0*
    ctypes.POINTER(wintypes.DWORD),  # inboundSpi : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('fwpuclnt.dll')
IPsecSaContextGetSpi0 = Fiddle::Function.new(
  lib['IPsecSaContextGetSpi0'],
  [
    Fiddle::TYPE_VOIDP,  # engineHandle : FWPM_ENGINE_HANDLE
    -Fiddle::TYPE_LONG_LONG,  # id : ULONGLONG
    Fiddle::TYPE_VOIDP,  # getSpi : IPSEC_GETSPI0*
    Fiddle::TYPE_VOIDP,  # inboundSpi : DWORD* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "fwpuclnt")]
extern "system" {
    fn IPsecSaContextGetSpi0(
        engineHandle: FWPM_ENGINE_HANDLE,  // FWPM_ENGINE_HANDLE
        id: u64,  // ULONGLONG
        getSpi: *const IPSEC_GETSPI0,  // IPSEC_GETSPI0*
        inboundSpi: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("fwpuclnt.dll")]
public static extern uint IPsecSaContextGetSpi0(FWPM_ENGINE_HANDLE engineHandle, ulong id, IntPtr getSpi, out uint inboundSpi);
"@
$api = Add-Type -MemberDefinition $sig -Name 'fwpuclnt_IPsecSaContextGetSpi0' -Namespace Win32 -PassThru
# $api::IPsecSaContextGetSpi0(engineHandle, id, getSpi, inboundSpi)

#uselib "fwpuclnt.dll"
#func global IPsecSaContextGetSpi0 "IPsecSaContextGetSpi0" sptr, sptr, sptr, sptr
; IPsecSaContextGetSpi0 engineHandle, id, varptr(getSpi), varptr(inboundSpi)   ; 戻り値は stat
; engineHandle : FWPM_ENGINE_HANDLE -> "sptr"
; id : ULONGLONG -> "sptr"
; getSpi : IPSEC_GETSPI0* -> "sptr"
; inboundSpi : DWORD* 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 int64 引数(64bit値渡し)に非対応です。
; ※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 IPsecSaContextGetSpi0 "IPsecSaContextGetSpi0" int, int64, var, var
; res = IPsecSaContextGetSpi0(engineHandle, id, getSpi, inboundSpi)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; id : ULONGLONG -> "int64"
; getSpi : IPSEC_GETSPI0* -> "var"
; inboundSpi : DWORD* 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。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。

; DWORD IPsecSaContextGetSpi0(FWPM_ENGINE_HANDLE engineHandle, ULONGLONG id, IPSEC_GETSPI0* getSpi, DWORD* inboundSpi)
#uselib "fwpuclnt.dll"
#cfunc global IPsecSaContextGetSpi0 "IPsecSaContextGetSpi0" int, int64, var, var
; res = IPsecSaContextGetSpi0(engineHandle, id, getSpi, inboundSpi)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; id : ULONGLONG -> "int64"
; getSpi : IPSEC_GETSPI0* -> "var"
; inboundSpi : DWORD* 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")
	procIPsecSaContextGetSpi0 = fwpuclnt.NewProc("IPsecSaContextGetSpi0")
)

// engineHandle (FWPM_ENGINE_HANDLE), id (ULONGLONG), getSpi (IPSEC_GETSPI0*), inboundSpi (DWORD* out)
r1, _, err := procIPsecSaContextGetSpi0.Call(
	uintptr(engineHandle),
	uintptr(id),
	uintptr(getSpi),
	uintptr(inboundSpi),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function IPsecSaContextGetSpi0(
  engineHandle: FWPM_ENGINE_HANDLE;   // FWPM_ENGINE_HANDLE
  id: UInt64;   // ULONGLONG
  getSpi: Pointer;   // IPSEC_GETSPI0*
  inboundSpi: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'fwpuclnt.dll' name 'IPsecSaContextGetSpi0';

result := DllCall("fwpuclnt\IPsecSaContextGetSpi0"
    , "Ptr", engineHandle   ; FWPM_ENGINE_HANDLE
    , "Int64", id   ; ULONGLONG
    , "Ptr", getSpi   ; IPSEC_GETSPI0*
    , "Ptr", inboundSpi   ; DWORD* out
    , "UInt")   ; return: DWORD

●IPsecSaContextGetSpi0(engineHandle, id, getSpi, inboundSpi) = DLL("fwpuclnt.dll", "dword IPsecSaContextGetSpi0(void*, qword, void*, void*)")
# 呼び出し: IPsecSaContextGetSpi0(engineHandle, id, getSpi, inboundSpi)
# engineHandle : FWPM_ENGINE_HANDLE -> "void*"
# id : ULONGLONG -> "qword"
# getSpi : IPSEC_GETSPI0* -> "void*"
# inboundSpi : DWORD* 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)。