McastEnumerateScopes

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

DWORD McastEnumerateScopes(
    WORD AddrFamily,
    BOOL ReQuery,
    MCAST_SCOPE_ENTRY* pScopeList,
    DWORD* pScopeLen,
    DWORD* pScopeCount
);

<DllImport("dhcpcsvc.dll", ExactSpelling:=True)>
Public Shared Function McastEnumerateScopes(
    AddrFamily As UShort,   ' WORD
    ReQuery As Boolean,   ' BOOL
    pScopeList As IntPtr,   ' MCAST_SCOPE_ENTRY* in/out
    ByRef pScopeLen As UInteger,   ' DWORD* in/out
    ByRef pScopeCount As UInteger   ' DWORD* in/out
) As UInteger
End Function

' AddrFamily : WORD
' ReQuery : BOOL
' pScopeList : MCAST_SCOPE_ENTRY* in/out
' pScopeLen : DWORD* in/out
' pScopeCount : DWORD* in/out
Declare PtrSafe Function McastEnumerateScopes Lib "dhcpcsvc" ( _
    ByVal AddrFamily As Integer, _
    ByVal ReQuery As Long, _
    ByVal pScopeList As LongPtr, _
    ByRef pScopeLen As Long, _
    ByRef pScopeCount 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

McastEnumerateScopes = ctypes.windll.dhcpcsvc.McastEnumerateScopes
McastEnumerateScopes.restype = wintypes.DWORD
McastEnumerateScopes.argtypes = [
    ctypes.c_ushort,  # AddrFamily : WORD
    wintypes.BOOL,  # ReQuery : BOOL
    ctypes.c_void_p,  # pScopeList : MCAST_SCOPE_ENTRY* in/out
    ctypes.POINTER(wintypes.DWORD),  # pScopeLen : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # pScopeCount : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dhcpcsvc.dll')
McastEnumerateScopes = Fiddle::Function.new(
  lib['McastEnumerateScopes'],
  [
    -Fiddle::TYPE_SHORT,  # AddrFamily : WORD
    Fiddle::TYPE_INT,  # ReQuery : BOOL
    Fiddle::TYPE_VOIDP,  # pScopeList : MCAST_SCOPE_ENTRY* in/out
    Fiddle::TYPE_VOIDP,  # pScopeLen : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # pScopeCount : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpcsvc")]
extern "system" {
    fn McastEnumerateScopes(
        AddrFamily: u16,  // WORD
        ReQuery: i32,  // BOOL
        pScopeList: *mut MCAST_SCOPE_ENTRY,  // MCAST_SCOPE_ENTRY* in/out
        pScopeLen: *mut u32,  // DWORD* in/out
        pScopeCount: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dhcpcsvc.dll")]
public static extern uint McastEnumerateScopes(ushort AddrFamily, bool ReQuery, IntPtr pScopeList, ref uint pScopeLen, ref uint pScopeCount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dhcpcsvc_McastEnumerateScopes' -Namespace Win32 -PassThru
# $api::McastEnumerateScopes(AddrFamily, ReQuery, pScopeList, pScopeLen, pScopeCount)

#uselib "dhcpcsvc.dll"
#func global McastEnumerateScopes "McastEnumerateScopes" sptr, sptr, sptr, sptr, sptr
; McastEnumerateScopes AddrFamily, ReQuery, varptr(pScopeList), varptr(pScopeLen), varptr(pScopeCount)   ; 戻り値は stat
; AddrFamily : WORD -> "sptr"
; ReQuery : BOOL -> "sptr"
; pScopeList : MCAST_SCOPE_ENTRY* in/out -> "sptr"
; pScopeLen : DWORD* in/out -> "sptr"
; pScopeCount : DWORD* in/out -> "sptr"
; ※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 (
	dhcpcsvc = windows.NewLazySystemDLL("dhcpcsvc.dll")
	procMcastEnumerateScopes = dhcpcsvc.NewProc("McastEnumerateScopes")
)

// AddrFamily (WORD), ReQuery (BOOL), pScopeList (MCAST_SCOPE_ENTRY* in/out), pScopeLen (DWORD* in/out), pScopeCount (DWORD* in/out)
r1, _, err := procMcastEnumerateScopes.Call(
	uintptr(AddrFamily),
	uintptr(ReQuery),
	uintptr(pScopeList),
	uintptr(pScopeLen),
	uintptr(pScopeCount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function McastEnumerateScopes(
  AddrFamily: Word;   // WORD
  ReQuery: BOOL;   // BOOL
  pScopeList: Pointer;   // MCAST_SCOPE_ENTRY* in/out
  pScopeLen: Pointer;   // DWORD* in/out
  pScopeCount: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'dhcpcsvc.dll' name 'McastEnumerateScopes';

result := DllCall("dhcpcsvc\McastEnumerateScopes"
    , "UShort", AddrFamily   ; WORD
    , "Int", ReQuery   ; BOOL
    , "Ptr", pScopeList   ; MCAST_SCOPE_ENTRY* in/out
    , "Ptr", pScopeLen   ; DWORD* in/out
    , "Ptr", pScopeCount   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●McastEnumerateScopes(AddrFamily, ReQuery, pScopeList, pScopeLen, pScopeCount) = DLL("dhcpcsvc.dll", "dword McastEnumerateScopes(int, bool, void*, void*, void*)")
# 呼び出し: McastEnumerateScopes(AddrFamily, ReQuery, pScopeList, pScopeLen, pScopeCount)
# AddrFamily : WORD -> "int"
# ReQuery : BOOL -> "bool"
# pScopeList : MCAST_SCOPE_ENTRY* in/out -> "void*"
# pScopeLen : DWORD* in/out -> "void*"
# pScopeCount : DWORD* in/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 "dhcpcsvc" fn McastEnumerateScopes(
    AddrFamily: u16, // WORD
    ReQuery: i32, // BOOL
    pScopeList: [*c]MCAST_SCOPE_ENTRY, // MCAST_SCOPE_ENTRY* in/out
    pScopeLen: [*c]u32, // DWORD* in/out
    pScopeCount: [*c]u32 // DWORD* in/out
) callconv(std.os.windows.WINAPI) u32;

proc McastEnumerateScopes(
    AddrFamily: uint16,  # WORD
    ReQuery: int32,  # BOOL
    pScopeList: ptr MCAST_SCOPE_ENTRY,  # MCAST_SCOPE_ENTRY* in/out
    pScopeLen: ptr uint32,  # DWORD* in/out
    pScopeCount: ptr uint32  # DWORD* in/out
): uint32 {.importc: "McastEnumerateScopes", stdcall, dynlib: "dhcpcsvc.dll".}

pragma(lib, "dhcpcsvc");
extern(Windows)
uint McastEnumerateScopes(
    ushort AddrFamily,   // WORD
    int ReQuery,   // BOOL
    MCAST_SCOPE_ENTRY* pScopeList,   // MCAST_SCOPE_ENTRY* in/out
    uint* pScopeLen,   // DWORD* in/out
    uint* pScopeCount   // DWORD* in/out
);

ccall((:McastEnumerateScopes, "dhcpcsvc.dll"), stdcall, UInt32,
      (UInt16, Int32, Ptr{MCAST_SCOPE_ENTRY}, Ptr{UInt32}, Ptr{UInt32}),
      AddrFamily, ReQuery, pScopeList, pScopeLen, pScopeCount)
# AddrFamily : WORD -> UInt16
# ReQuery : BOOL -> Int32
# pScopeList : MCAST_SCOPE_ENTRY* in/out -> Ptr{MCAST_SCOPE_ENTRY}
# pScopeLen : DWORD* in/out -> Ptr{UInt32}
# pScopeCount : DWORD* in/out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t McastEnumerateScopes(
    uint16_t AddrFamily,
    int32_t ReQuery,
    void* pScopeList,
    uint32_t* pScopeLen,
    uint32_t* pScopeCount);
]]
local dhcpcsvc = ffi.load("dhcpcsvc")
-- dhcpcsvc.McastEnumerateScopes(AddrFamily, ReQuery, pScopeList, pScopeLen, pScopeCount)
-- AddrFamily : WORD
-- ReQuery : BOOL
-- pScopeList : MCAST_SCOPE_ENTRY* in/out
-- pScopeLen : DWORD* in/out
-- pScopeCount : DWORD* in/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('dhcpcsvc.dll');
const McastEnumerateScopes = lib.func('__stdcall', 'McastEnumerateScopes', 'uint32_t', ['uint16_t', 'int32_t', 'void *', 'uint32_t *', 'uint32_t *']);
// McastEnumerateScopes(AddrFamily, ReQuery, pScopeList, pScopeLen, pScopeCount)
// AddrFamily : WORD -> 'uint16_t'
// ReQuery : BOOL -> 'int32_t'
// pScopeList : MCAST_SCOPE_ENTRY* in/out -> 'void *'
// pScopeLen : DWORD* in/out -> 'uint32_t *'
// pScopeCount : DWORD* in/out -> 'uint32_t *'
// 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("dhcpcsvc.dll", {
  McastEnumerateScopes: { parameters: ["u16", "i32", "pointer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.McastEnumerateScopes(AddrFamily, ReQuery, pScopeList, pScopeLen, pScopeCount)
// AddrFamily : WORD -> "u16"
// ReQuery : BOOL -> "i32"
// pScopeList : MCAST_SCOPE_ENTRY* in/out -> "pointer"
// pScopeLen : DWORD* in/out -> "pointer"
// pScopeCount : DWORD* in/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 McastEnumerateScopes(
    uint16_t AddrFamily,
    int32_t ReQuery,
    void* pScopeList,
    uint32_t* pScopeLen,
    uint32_t* pScopeCount);
C, "dhcpcsvc.dll");
// $ffi->McastEnumerateScopes(AddrFamily, ReQuery, pScopeList, pScopeLen, pScopeCount);
// AddrFamily : WORD
// ReQuery : BOOL
// pScopeList : MCAST_SCOPE_ENTRY* in/out
// pScopeLen : DWORD* in/out
// pScopeCount : DWORD* in/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 Dhcpcsvc extends StdCallLibrary {
    Dhcpcsvc INSTANCE = Native.load("dhcpcsvc", Dhcpcsvc.class);
    int McastEnumerateScopes(
        short AddrFamily,   // WORD
        boolean ReQuery,   // BOOL
        Pointer pScopeList,   // MCAST_SCOPE_ENTRY* in/out
        IntByReference pScopeLen,   // DWORD* in/out
        IntByReference pScopeCount   // DWORD* in/out
    );
}

@[Link("dhcpcsvc")]
lib Libdhcpcsvc
  fun McastEnumerateScopes = McastEnumerateScopes(
    AddrFamily : UInt16,   # WORD
    ReQuery : Int32,   # BOOL
    pScopeList : MCAST_SCOPE_ENTRY*,   # MCAST_SCOPE_ENTRY* in/out
    pScopeLen : UInt32*,   # DWORD* in/out
    pScopeCount : UInt32*   # DWORD* in/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 McastEnumerateScopesNative = Uint32 Function(Uint16, Int32, Pointer<Void>, Pointer<Uint32>, Pointer<Uint32>);
typedef McastEnumerateScopesDart = int Function(int, int, Pointer<Void>, Pointer<Uint32>, Pointer<Uint32>);
final McastEnumerateScopes = DynamicLibrary.open('dhcpcsvc.dll')
    .lookupFunction<McastEnumerateScopesNative, McastEnumerateScopesDart>('McastEnumerateScopes');
// AddrFamily : WORD -> Uint16
// ReQuery : BOOL -> Int32
// pScopeList : MCAST_SCOPE_ENTRY* in/out -> Pointer<Void>
// pScopeLen : DWORD* in/out -> Pointer<Uint32>
// pScopeCount : DWORD* in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function McastEnumerateScopes(
  AddrFamily: Word;   // WORD
  ReQuery: BOOL;   // BOOL
  pScopeList: Pointer;   // MCAST_SCOPE_ENTRY* in/out
  pScopeLen: Pointer;   // DWORD* in/out
  pScopeCount: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'dhcpcsvc.dll' name 'McastEnumerateScopes';

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

foreign import stdcall safe "McastEnumerateScopes"
  c_McastEnumerateScopes :: Word16 -> CInt -> Ptr () -> Ptr Word32 -> Ptr Word32 -> IO Word32
-- AddrFamily : WORD -> Word16
-- ReQuery : BOOL -> CInt
-- pScopeList : MCAST_SCOPE_ENTRY* in/out -> Ptr ()
-- pScopeLen : DWORD* in/out -> Ptr Word32
-- pScopeCount : DWORD* in/out -> Ptr Word32
-- 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。

open Ctypes
open Foreign

let mcastenumeratescopes =
  foreign "McastEnumerateScopes"
    (uint16_t @-> int32_t @-> (ptr void) @-> (ptr uint32_t) @-> (ptr uint32_t) @-> returning uint32_t)
(* AddrFamily : WORD -> uint16_t *)
(* ReQuery : BOOL -> int32_t *)
(* pScopeList : MCAST_SCOPE_ENTRY* in/out -> (ptr void) *)
(* pScopeLen : DWORD* in/out -> (ptr uint32_t) *)
(* pScopeCount : DWORD* in/out -> (ptr uint32_t) *)
(* 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 dhcpcsvc (t "dhcpcsvc.dll"))
(cffi:use-foreign-library dhcpcsvc)

(cffi:defcfun ("McastEnumerateScopes" mcast-enumerate-scopes :convention :stdcall) :uint32
  (addr-family :uint16)   ; WORD
  (re-query :int32)   ; BOOL
  (p-scope-list :pointer)   ; MCAST_SCOPE_ENTRY* in/out
  (p-scope-len :pointer)   ; DWORD* in/out
  (p-scope-count :pointer))   ; DWORD* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $McastEnumerateScopes = Win32::API::More->new('dhcpcsvc',
    'DWORD McastEnumerateScopes(WORD AddrFamily, BOOL ReQuery, LPVOID pScopeList, LPVOID pScopeLen, LPVOID pScopeCount)');
# my $ret = $McastEnumerateScopes->Call($AddrFamily, $ReQuery, $pScopeList, $pScopeLen, $pScopeCount);
# AddrFamily : WORD -> WORD
# ReQuery : BOOL -> BOOL
# pScopeList : MCAST_SCOPE_ENTRY* in/out -> LPVOID
# pScopeLen : DWORD* in/out -> LPVOID
# pScopeCount : DWORD* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。