DhcpV6GetStatelessStoreParams

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

DWORD DhcpV6GetStatelessStoreParams(
    LPWSTR ServerIpAddress,   // optional
    BOOL fServerLevel,
    DHCP_IPV6_ADDRESS SubnetAddress,
    DHCPV6_STATELESS_PARAMS** Params
);

<DllImport("DHCPSAPI.dll", ExactSpelling:=True)>
Public Shared Function DhcpV6GetStatelessStoreParams(
    <MarshalAs(UnmanagedType.LPWStr)> ServerIpAddress As String,   ' LPWSTR optional
    fServerLevel As Boolean,   ' BOOL
    SubnetAddress As DHCP_IPV6_ADDRESS,   ' DHCP_IPV6_ADDRESS
    Params As IntPtr   ' DHCPV6_STATELESS_PARAMS** out
) As UInteger
End Function

' ServerIpAddress : LPWSTR optional
' fServerLevel : BOOL
' SubnetAddress : DHCP_IPV6_ADDRESS
' Params : DHCPV6_STATELESS_PARAMS** out
Declare PtrSafe Function DhcpV6GetStatelessStoreParams Lib "dhcpsapi" ( _
    ByVal ServerIpAddress As LongPtr, _
    ByVal fServerLevel As Long, _
    ByVal SubnetAddress As LongPtr, _
    ByVal Params 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

DhcpV6GetStatelessStoreParams = ctypes.windll.dhcpsapi.DhcpV6GetStatelessStoreParams
DhcpV6GetStatelessStoreParams.restype = wintypes.DWORD
DhcpV6GetStatelessStoreParams.argtypes = [
    wintypes.LPCWSTR,  # ServerIpAddress : LPWSTR optional
    wintypes.BOOL,  # fServerLevel : BOOL
    DHCP_IPV6_ADDRESS,  # SubnetAddress : DHCP_IPV6_ADDRESS
    ctypes.c_void_p,  # Params : DHCPV6_STATELESS_PARAMS** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DHCPSAPI.dll')
DhcpV6GetStatelessStoreParams = Fiddle::Function.new(
  lib['DhcpV6GetStatelessStoreParams'],
  [
    Fiddle::TYPE_VOIDP,  # ServerIpAddress : LPWSTR optional
    Fiddle::TYPE_INT,  # fServerLevel : BOOL
    Fiddle::TYPE_VOIDP,  # SubnetAddress : DHCP_IPV6_ADDRESS
    Fiddle::TYPE_VOIDP,  # Params : DHCPV6_STATELESS_PARAMS** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpsapi")]
extern "system" {
    fn DhcpV6GetStatelessStoreParams(
        ServerIpAddress: *mut u16,  // LPWSTR optional
        fServerLevel: i32,  // BOOL
        SubnetAddress: DHCP_IPV6_ADDRESS,  // DHCP_IPV6_ADDRESS
        Params: *mut *mut DHCPV6_STATELESS_PARAMS  // DHCPV6_STATELESS_PARAMS** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DHCPSAPI.dll")]
public static extern uint DhcpV6GetStatelessStoreParams([MarshalAs(UnmanagedType.LPWStr)] string ServerIpAddress, bool fServerLevel, DHCP_IPV6_ADDRESS SubnetAddress, IntPtr Params);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DHCPSAPI_DhcpV6GetStatelessStoreParams' -Namespace Win32 -PassThru
# $api::DhcpV6GetStatelessStoreParams(ServerIpAddress, fServerLevel, SubnetAddress, Params)

#uselib "DHCPSAPI.dll"
#func global DhcpV6GetStatelessStoreParams "DhcpV6GetStatelessStoreParams" sptr, sptr, sptr, sptr
; DhcpV6GetStatelessStoreParams ServerIpAddress, fServerLevel, SubnetAddress, varptr(Params)   ; 戻り値は stat
; ServerIpAddress : LPWSTR optional -> "sptr"
; fServerLevel : BOOL -> "sptr"
; SubnetAddress : DHCP_IPV6_ADDRESS -> "sptr"
; Params : DHCPV6_STATELESS_PARAMS** 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 "DHCPSAPI.dll"
#cfunc global DhcpV6GetStatelessStoreParams "DhcpV6GetStatelessStoreParams" wstr, int, int, var
; res = DhcpV6GetStatelessStoreParams(ServerIpAddress, fServerLevel, SubnetAddress, Params)
; ServerIpAddress : LPWSTR optional -> "wstr"
; fServerLevel : BOOL -> "int"
; SubnetAddress : DHCP_IPV6_ADDRESS -> "int"
; Params : DHCPV6_STATELESS_PARAMS** 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 DhcpV6GetStatelessStoreParams(LPWSTR ServerIpAddress, BOOL fServerLevel, DHCP_IPV6_ADDRESS SubnetAddress, DHCPV6_STATELESS_PARAMS** Params)
#uselib "DHCPSAPI.dll"
#cfunc global DhcpV6GetStatelessStoreParams "DhcpV6GetStatelessStoreParams" wstr, int, int, var
; res = DhcpV6GetStatelessStoreParams(ServerIpAddress, fServerLevel, SubnetAddress, Params)
; ServerIpAddress : LPWSTR optional -> "wstr"
; fServerLevel : BOOL -> "int"
; SubnetAddress : DHCP_IPV6_ADDRESS -> "int"
; Params : DHCPV6_STATELESS_PARAMS** 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 (
	dhcpsapi = windows.NewLazySystemDLL("DHCPSAPI.dll")
	procDhcpV6GetStatelessStoreParams = dhcpsapi.NewProc("DhcpV6GetStatelessStoreParams")
)

// ServerIpAddress (LPWSTR optional), fServerLevel (BOOL), SubnetAddress (DHCP_IPV6_ADDRESS), Params (DHCPV6_STATELESS_PARAMS** out)
r1, _, err := procDhcpV6GetStatelessStoreParams.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ServerIpAddress))),
	uintptr(fServerLevel),
	uintptr(SubnetAddress),
	uintptr(Params),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpV6GetStatelessStoreParams(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  fServerLevel: BOOL;   // BOOL
  SubnetAddress: DHCP_IPV6_ADDRESS;   // DHCP_IPV6_ADDRESS
  Params: Pointer   // DHCPV6_STATELESS_PARAMS** out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpV6GetStatelessStoreParams';

result := DllCall("DHCPSAPI\DhcpV6GetStatelessStoreParams"
    , "WStr", ServerIpAddress   ; LPWSTR optional
    , "Int", fServerLevel   ; BOOL
    , "Ptr", SubnetAddress   ; DHCP_IPV6_ADDRESS
    , "Ptr", Params   ; DHCPV6_STATELESS_PARAMS** out
    , "UInt")   ; return: DWORD

●DhcpV6GetStatelessStoreParams(ServerIpAddress, fServerLevel, SubnetAddress, Params) = DLL("DHCPSAPI.dll", "dword DhcpV6GetStatelessStoreParams(char*, bool, void*, void*)")
# 呼び出し: DhcpV6GetStatelessStoreParams(ServerIpAddress, fServerLevel, SubnetAddress, Params)
# ServerIpAddress : LPWSTR optional -> "char*"
# fServerLevel : BOOL -> "bool"
# SubnetAddress : DHCP_IPV6_ADDRESS -> "void*"
# Params : DHCPV6_STATELESS_PARAMS** 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)。