McastRequestAddress

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

DWORD McastRequestAddress(
    WORD AddrFamily,
    MCAST_CLIENT_UID* pRequestID,
    MCAST_SCOPE_CTX* pScopeCtx,
    MCAST_LEASE_REQUEST* pAddrRequest,
    MCAST_LEASE_RESPONSE* pAddrResponse
);

<DllImport("dhcpcsvc.dll", ExactSpelling:=True)>
Public Shared Function McastRequestAddress(
    AddrFamily As UShort,   ' WORD
    pRequestID As IntPtr,   ' MCAST_CLIENT_UID* in/out
    pScopeCtx As IntPtr,   ' MCAST_SCOPE_CTX* in/out
    pAddrRequest As IntPtr,   ' MCAST_LEASE_REQUEST* in/out
    pAddrResponse As IntPtr   ' MCAST_LEASE_RESPONSE* in/out
) As UInteger
End Function

' AddrFamily : WORD
' pRequestID : MCAST_CLIENT_UID* in/out
' pScopeCtx : MCAST_SCOPE_CTX* in/out
' pAddrRequest : MCAST_LEASE_REQUEST* in/out
' pAddrResponse : MCAST_LEASE_RESPONSE* in/out
Declare PtrSafe Function McastRequestAddress Lib "dhcpcsvc" ( _
    ByVal AddrFamily As Integer, _
    ByVal pRequestID As LongPtr, _
    ByVal pScopeCtx As LongPtr, _
    ByVal pAddrRequest As LongPtr, _
    ByVal pAddrResponse 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

McastRequestAddress = ctypes.windll.dhcpcsvc.McastRequestAddress
McastRequestAddress.restype = wintypes.DWORD
McastRequestAddress.argtypes = [
    ctypes.c_ushort,  # AddrFamily : WORD
    ctypes.c_void_p,  # pRequestID : MCAST_CLIENT_UID* in/out
    ctypes.c_void_p,  # pScopeCtx : MCAST_SCOPE_CTX* in/out
    ctypes.c_void_p,  # pAddrRequest : MCAST_LEASE_REQUEST* in/out
    ctypes.c_void_p,  # pAddrResponse : MCAST_LEASE_RESPONSE* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dhcpcsvc.dll')
McastRequestAddress = Fiddle::Function.new(
  lib['McastRequestAddress'],
  [
    -Fiddle::TYPE_SHORT,  # AddrFamily : WORD
    Fiddle::TYPE_VOIDP,  # pRequestID : MCAST_CLIENT_UID* in/out
    Fiddle::TYPE_VOIDP,  # pScopeCtx : MCAST_SCOPE_CTX* in/out
    Fiddle::TYPE_VOIDP,  # pAddrRequest : MCAST_LEASE_REQUEST* in/out
    Fiddle::TYPE_VOIDP,  # pAddrResponse : MCAST_LEASE_RESPONSE* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpcsvc")]
extern "system" {
    fn McastRequestAddress(
        AddrFamily: u16,  // WORD
        pRequestID: *mut MCAST_CLIENT_UID,  // MCAST_CLIENT_UID* in/out
        pScopeCtx: *mut MCAST_SCOPE_CTX,  // MCAST_SCOPE_CTX* in/out
        pAddrRequest: *mut MCAST_LEASE_REQUEST,  // MCAST_LEASE_REQUEST* in/out
        pAddrResponse: *mut MCAST_LEASE_RESPONSE  // MCAST_LEASE_RESPONSE* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dhcpcsvc.dll")]
public static extern uint McastRequestAddress(ushort AddrFamily, IntPtr pRequestID, IntPtr pScopeCtx, IntPtr pAddrRequest, IntPtr pAddrResponse);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dhcpcsvc_McastRequestAddress' -Namespace Win32 -PassThru
# $api::McastRequestAddress(AddrFamily, pRequestID, pScopeCtx, pAddrRequest, pAddrResponse)

#uselib "dhcpcsvc.dll"
#func global McastRequestAddress "McastRequestAddress" sptr, sptr, sptr, sptr, sptr
; McastRequestAddress AddrFamily, varptr(pRequestID), varptr(pScopeCtx), varptr(pAddrRequest), varptr(pAddrResponse)   ; 戻り値は stat
; AddrFamily : WORD -> "sptr"
; pRequestID : MCAST_CLIENT_UID* in/out -> "sptr"
; pScopeCtx : MCAST_SCOPE_CTX* in/out -> "sptr"
; pAddrRequest : MCAST_LEASE_REQUEST* in/out -> "sptr"
; pAddrResponse : MCAST_LEASE_RESPONSE* 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。

#uselib "dhcpcsvc.dll"
#cfunc global McastRequestAddress "McastRequestAddress" int, var, var, var, var
; res = McastRequestAddress(AddrFamily, pRequestID, pScopeCtx, pAddrRequest, pAddrResponse)
; AddrFamily : WORD -> "int"
; pRequestID : MCAST_CLIENT_UID* in/out -> "var"
; pScopeCtx : MCAST_SCOPE_CTX* in/out -> "var"
; pAddrRequest : MCAST_LEASE_REQUEST* in/out -> "var"
; pAddrResponse : MCAST_LEASE_RESPONSE* in/out -> "var"
; ※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 McastRequestAddress(WORD AddrFamily, MCAST_CLIENT_UID* pRequestID, MCAST_SCOPE_CTX* pScopeCtx, MCAST_LEASE_REQUEST* pAddrRequest, MCAST_LEASE_RESPONSE* pAddrResponse)
#uselib "dhcpcsvc.dll"
#cfunc global McastRequestAddress "McastRequestAddress" int, var, var, var, var
; res = McastRequestAddress(AddrFamily, pRequestID, pScopeCtx, pAddrRequest, pAddrResponse)
; AddrFamily : WORD -> "int"
; pRequestID : MCAST_CLIENT_UID* in/out -> "var"
; pScopeCtx : MCAST_SCOPE_CTX* in/out -> "var"
; pAddrRequest : MCAST_LEASE_REQUEST* in/out -> "var"
; pAddrResponse : MCAST_LEASE_RESPONSE* in/out -> "var"
; ※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 (
	dhcpcsvc = windows.NewLazySystemDLL("dhcpcsvc.dll")
	procMcastRequestAddress = dhcpcsvc.NewProc("McastRequestAddress")
)

// AddrFamily (WORD), pRequestID (MCAST_CLIENT_UID* in/out), pScopeCtx (MCAST_SCOPE_CTX* in/out), pAddrRequest (MCAST_LEASE_REQUEST* in/out), pAddrResponse (MCAST_LEASE_RESPONSE* in/out)
r1, _, err := procMcastRequestAddress.Call(
	uintptr(AddrFamily),
	uintptr(pRequestID),
	uintptr(pScopeCtx),
	uintptr(pAddrRequest),
	uintptr(pAddrResponse),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function McastRequestAddress(
  AddrFamily: Word;   // WORD
  pRequestID: Pointer;   // MCAST_CLIENT_UID* in/out
  pScopeCtx: Pointer;   // MCAST_SCOPE_CTX* in/out
  pAddrRequest: Pointer;   // MCAST_LEASE_REQUEST* in/out
  pAddrResponse: Pointer   // MCAST_LEASE_RESPONSE* in/out
): DWORD; stdcall;
  external 'dhcpcsvc.dll' name 'McastRequestAddress';

result := DllCall("dhcpcsvc\McastRequestAddress"
    , "UShort", AddrFamily   ; WORD
    , "Ptr", pRequestID   ; MCAST_CLIENT_UID* in/out
    , "Ptr", pScopeCtx   ; MCAST_SCOPE_CTX* in/out
    , "Ptr", pAddrRequest   ; MCAST_LEASE_REQUEST* in/out
    , "Ptr", pAddrResponse   ; MCAST_LEASE_RESPONSE* in/out
    , "UInt")   ; return: DWORD

●McastRequestAddress(AddrFamily, pRequestID, pScopeCtx, pAddrRequest, pAddrResponse) = DLL("dhcpcsvc.dll", "dword McastRequestAddress(int, void*, void*, void*, void*)")
# 呼び出し: McastRequestAddress(AddrFamily, pRequestID, pScopeCtx, pAddrRequest, pAddrResponse)
# AddrFamily : WORD -> "int"
# pRequestID : MCAST_CLIENT_UID* in/out -> "void*"
# pScopeCtx : MCAST_SCOPE_CTX* in/out -> "void*"
# pAddrRequest : MCAST_LEASE_REQUEST* in/out -> "void*"
# pAddrResponse : MCAST_LEASE_RESPONSE* 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)。