FwpmLayerGetById0

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

DWORD FwpmLayerGetById0(
    FWPM_ENGINE_HANDLE engineHandle,
    WORD id,
    FWPM_LAYER0** layer
);

<DllImport("fwpuclnt.dll", ExactSpelling:=True)>
Public Shared Function FwpmLayerGetById0(
    engineHandle As FWPM_ENGINE_HANDLE,   ' FWPM_ENGINE_HANDLE
    id As UShort,   ' WORD
    layer As IntPtr   ' FWPM_LAYER0** out
) As UInteger
End Function

' engineHandle : FWPM_ENGINE_HANDLE
' id : WORD
' layer : FWPM_LAYER0** out
Declare PtrSafe Function FwpmLayerGetById0 Lib "fwpuclnt" ( _
    ByVal engineHandle As LongPtr, _
    ByVal id As Integer, _
    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

FwpmLayerGetById0 = ctypes.windll.fwpuclnt.FwpmLayerGetById0
FwpmLayerGetById0.restype = wintypes.DWORD
FwpmLayerGetById0.argtypes = [
    FWPM_ENGINE_HANDLE,  # engineHandle : FWPM_ENGINE_HANDLE
    ctypes.c_ushort,  # id : WORD
    ctypes.c_void_p,  # layer : FWPM_LAYER0** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('fwpuclnt.dll')
FwpmLayerGetById0 = Fiddle::Function.new(
  lib['FwpmLayerGetById0'],
  [
    Fiddle::TYPE_VOIDP,  # engineHandle : FWPM_ENGINE_HANDLE
    -Fiddle::TYPE_SHORT,  # id : WORD
    Fiddle::TYPE_VOIDP,  # layer : FWPM_LAYER0** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "fwpuclnt")]
extern "system" {
    fn FwpmLayerGetById0(
        engineHandle: FWPM_ENGINE_HANDLE,  // FWPM_ENGINE_HANDLE
        id: u16,  // WORD
        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 FwpmLayerGetById0(FWPM_ENGINE_HANDLE engineHandle, ushort id, IntPtr layer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'fwpuclnt_FwpmLayerGetById0' -Namespace Win32 -PassThru
# $api::FwpmLayerGetById0(engineHandle, id, layer)

#uselib "fwpuclnt.dll"
#func global FwpmLayerGetById0 "FwpmLayerGetById0" sptr, sptr, sptr
; FwpmLayerGetById0 engineHandle, id, varptr(layer)   ; 戻り値は stat
; engineHandle : FWPM_ENGINE_HANDLE -> "sptr"
; id : WORD -> "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 FwpmLayerGetById0 "FwpmLayerGetById0" int, int, var
; res = FwpmLayerGetById0(engineHandle, id, layer)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; id : WORD -> "int"
; 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 FwpmLayerGetById0(FWPM_ENGINE_HANDLE engineHandle, WORD id, FWPM_LAYER0** layer)
#uselib "fwpuclnt.dll"
#cfunc global FwpmLayerGetById0 "FwpmLayerGetById0" int, int, var
; res = FwpmLayerGetById0(engineHandle, id, layer)
; engineHandle : FWPM_ENGINE_HANDLE -> "int"
; id : WORD -> "int"
; 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")
	procFwpmLayerGetById0 = fwpuclnt.NewProc("FwpmLayerGetById0")
)

// engineHandle (FWPM_ENGINE_HANDLE), id (WORD), layer (FWPM_LAYER0** out)
r1, _, err := procFwpmLayerGetById0.Call(
	uintptr(engineHandle),
	uintptr(id),
	uintptr(layer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function FwpmLayerGetById0(
  engineHandle: FWPM_ENGINE_HANDLE;   // FWPM_ENGINE_HANDLE
  id: Word;   // WORD
  layer: Pointer   // FWPM_LAYER0** out
): DWORD; stdcall;
  external 'fwpuclnt.dll' name 'FwpmLayerGetById0';

result := DllCall("fwpuclnt\FwpmLayerGetById0"
    , "Ptr", engineHandle   ; FWPM_ENGINE_HANDLE
    , "UShort", id   ; WORD
    , "Ptr", layer   ; FWPM_LAYER0** out
    , "UInt")   ; return: DWORD

●FwpmLayerGetById0(engineHandle, id, layer) = DLL("fwpuclnt.dll", "dword FwpmLayerGetById0(void*, int, void*)")
# 呼び出し: FwpmLayerGetById0(engineHandle, id, layer)
# engineHandle : FWPM_ENGINE_HANDLE -> "void*"
# id : WORD -> "int"
# 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)。