FwpmLayerGetByKey0

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

DWORD FwpmLayerGetByKey0(
    FWPM_ENGINE_HANDLE engineHandle,
    const GUID* key,
    FWPM_LAYER0** layer
);

<DllImport("fwpuclnt.dll", ExactSpelling:=True)>
Public Shared Function FwpmLayerGetByKey0(
    engineHandle As FWPM_ENGINE_HANDLE,   ' FWPM_ENGINE_HANDLE
    ByRef key As Guid,   ' GUID*
    layer As IntPtr   ' FWPM_LAYER0** out
) As UInteger
End Function

' engineHandle : FWPM_ENGINE_HANDLE
' key : GUID*
' layer : FWPM_LAYER0** out
Declare PtrSafe Function FwpmLayerGetByKey0 Lib "fwpuclnt" ( _
    ByVal engineHandle As LongPtr, _
    ByVal key As LongPtr, _
    ByVal layer 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

FwpmLayerGetByKey0 = ctypes.windll.fwpuclnt.FwpmLayerGetByKey0
FwpmLayerGetByKey0.restype = wintypes.DWORD
FwpmLayerGetByKey0.argtypes = [
    FWPM_ENGINE_HANDLE,  # engineHandle : FWPM_ENGINE_HANDLE
    ctypes.c_void_p,  # key : GUID*
    ctypes.c_void_p,  # layer : FWPM_LAYER0** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('fwpuclnt.dll')
FwpmLayerGetByKey0 = Fiddle::Function.new(
  lib['FwpmLayerGetByKey0'],
  [
    Fiddle::TYPE_VOIDP,  # engineHandle : FWPM_ENGINE_HANDLE
    Fiddle::TYPE_VOIDP,  # key : GUID*
    Fiddle::TYPE_VOIDP,  # layer : FWPM_LAYER0** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "fwpuclnt")]
extern "system" {
    fn FwpmLayerGetByKey0(
        engineHandle: FWPM_ENGINE_HANDLE,  // FWPM_ENGINE_HANDLE
        key: *const GUID,  // GUID*
        layer: *mut *mut FWPM_LAYER0  // FWPM_LAYER0** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("fwpuclnt.dll")]
public static extern uint FwpmLayerGetByKey0(FWPM_ENGINE_HANDLE engineHandle, ref Guid key, IntPtr layer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'fwpuclnt_FwpmLayerGetByKey0' -Namespace Win32 -PassThru
# $api::FwpmLayerGetByKey0(engineHandle, key, layer)

#uselib "fwpuclnt.dll"
#func global FwpmLayerGetByKey0 "FwpmLayerGetByKey0" sptr, sptr, sptr
; FwpmLayerGetByKey0 engineHandle, varptr(key), varptr(layer)   ; 戻り値は stat
; engineHandle : FWPM_ENGINE_HANDLE -> "sptr"
; key : GUID* -> "sptr"
; layer : FWPM_LAYER0** 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 FwpmLayerGetByKey0 "FwpmLayerGetByKey0" int, var, var
; res = FwpmLayerGetByKey0(engineHandle, key, layer)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; key : GUID* -> "var"
; layer : FWPM_LAYER0** 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 FwpmLayerGetByKey0(FWPM_ENGINE_HANDLE engineHandle, GUID* key, FWPM_LAYER0** layer)
#uselib "fwpuclnt.dll"
#cfunc global FwpmLayerGetByKey0 "FwpmLayerGetByKey0" int, var, var
; res = FwpmLayerGetByKey0(engineHandle, key, layer)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; key : GUID* -> "var"
; layer : FWPM_LAYER0** 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")
	procFwpmLayerGetByKey0 = fwpuclnt.NewProc("FwpmLayerGetByKey0")
)

// engineHandle (FWPM_ENGINE_HANDLE), key (GUID*), layer (FWPM_LAYER0** out)
r1, _, err := procFwpmLayerGetByKey0.Call(
	uintptr(engineHandle),
	uintptr(key),
	uintptr(layer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function FwpmLayerGetByKey0(
  engineHandle: FWPM_ENGINE_HANDLE;   // FWPM_ENGINE_HANDLE
  key: PGUID;   // GUID*
  layer: Pointer   // FWPM_LAYER0** out
): DWORD; stdcall;
  external 'fwpuclnt.dll' name 'FwpmLayerGetByKey0';

result := DllCall("fwpuclnt\FwpmLayerGetByKey0"
    , "Ptr", engineHandle   ; FWPM_ENGINE_HANDLE
    , "Ptr", key   ; GUID*
    , "Ptr", layer   ; FWPM_LAYER0** out
    , "UInt")   ; return: DWORD

●FwpmLayerGetByKey0(engineHandle, key, layer) = DLL("fwpuclnt.dll", "dword FwpmLayerGetByKey0(void*, void*, void*)")
# 呼び出し: FwpmLayerGetByKey0(engineHandle, key, layer)
# engineHandle : FWPM_ENGINE_HANDLE -> "void*"
# key : GUID* -> "void*"
# layer : FWPM_LAYER0** 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)。