DhcpAuditLogGetParams

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

DWORD DhcpAuditLogGetParams(
    LPWSTR ServerIpAddress,   // optional
    DWORD Flags,
    LPWSTR* AuditLogDir,
    DWORD* DiskCheckInterval,
    DWORD* MaxLogFilesSize,
    DWORD* MinSpaceOnDisk
);

<DllImport("DHCPSAPI.dll", ExactSpelling:=True)>
Public Shared Function DhcpAuditLogGetParams(
    <MarshalAs(UnmanagedType.LPWStr)> ServerIpAddress As String,   ' LPWSTR optional
    Flags As UInteger,   ' DWORD
    AuditLogDir As IntPtr,   ' LPWSTR* out
    ByRef DiskCheckInterval As UInteger,   ' DWORD* in/out
    ByRef MaxLogFilesSize As UInteger,   ' DWORD* in/out
    ByRef MinSpaceOnDisk As UInteger   ' DWORD* in/out
) As UInteger
End Function

' ServerIpAddress : LPWSTR optional
' Flags : DWORD
' AuditLogDir : LPWSTR* out
' DiskCheckInterval : DWORD* in/out
' MaxLogFilesSize : DWORD* in/out
' MinSpaceOnDisk : DWORD* in/out
Declare PtrSafe Function DhcpAuditLogGetParams Lib "dhcpsapi" ( _
    ByVal ServerIpAddress As LongPtr, _
    ByVal Flags As Long, _
    ByVal AuditLogDir As LongPtr, _
    ByRef DiskCheckInterval As Long, _
    ByRef MaxLogFilesSize As Long, _
    ByRef MinSpaceOnDisk 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

DhcpAuditLogGetParams = ctypes.windll.dhcpsapi.DhcpAuditLogGetParams
DhcpAuditLogGetParams.restype = wintypes.DWORD
DhcpAuditLogGetParams.argtypes = [
    wintypes.LPCWSTR,  # ServerIpAddress : LPWSTR optional
    wintypes.DWORD,  # Flags : DWORD
    ctypes.c_void_p,  # AuditLogDir : LPWSTR* out
    ctypes.POINTER(wintypes.DWORD),  # DiskCheckInterval : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # MaxLogFilesSize : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # MinSpaceOnDisk : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DHCPSAPI.dll')
DhcpAuditLogGetParams = Fiddle::Function.new(
  lib['DhcpAuditLogGetParams'],
  [
    Fiddle::TYPE_VOIDP,  # ServerIpAddress : LPWSTR optional
    -Fiddle::TYPE_INT,  # Flags : DWORD
    Fiddle::TYPE_VOIDP,  # AuditLogDir : LPWSTR* out
    Fiddle::TYPE_VOIDP,  # DiskCheckInterval : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # MaxLogFilesSize : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # MinSpaceOnDisk : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpsapi")]
extern "system" {
    fn DhcpAuditLogGetParams(
        ServerIpAddress: *mut u16,  // LPWSTR optional
        Flags: u32,  // DWORD
        AuditLogDir: *mut *mut u16,  // LPWSTR* out
        DiskCheckInterval: *mut u32,  // DWORD* in/out
        MaxLogFilesSize: *mut u32,  // DWORD* in/out
        MinSpaceOnDisk: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DHCPSAPI.dll")]
public static extern uint DhcpAuditLogGetParams([MarshalAs(UnmanagedType.LPWStr)] string ServerIpAddress, uint Flags, IntPtr AuditLogDir, ref uint DiskCheckInterval, ref uint MaxLogFilesSize, ref uint MinSpaceOnDisk);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DHCPSAPI_DhcpAuditLogGetParams' -Namespace Win32 -PassThru
# $api::DhcpAuditLogGetParams(ServerIpAddress, Flags, AuditLogDir, DiskCheckInterval, MaxLogFilesSize, MinSpaceOnDisk)

#uselib "DHCPSAPI.dll"
#func global DhcpAuditLogGetParams "DhcpAuditLogGetParams" sptr, sptr, sptr, sptr, sptr, sptr
; DhcpAuditLogGetParams ServerIpAddress, Flags, varptr(AuditLogDir), varptr(DiskCheckInterval), varptr(MaxLogFilesSize), varptr(MinSpaceOnDisk)   ; 戻り値は stat
; ServerIpAddress : LPWSTR optional -> "sptr"
; Flags : DWORD -> "sptr"
; AuditLogDir : LPWSTR* out -> "sptr"
; DiskCheckInterval : DWORD* in/out -> "sptr"
; MaxLogFilesSize : DWORD* in/out -> "sptr"
; MinSpaceOnDisk : 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。

#uselib "DHCPSAPI.dll"
#cfunc global DhcpAuditLogGetParams "DhcpAuditLogGetParams" wstr, int, var, var, var, var
; res = DhcpAuditLogGetParams(ServerIpAddress, Flags, AuditLogDir, DiskCheckInterval, MaxLogFilesSize, MinSpaceOnDisk)
; ServerIpAddress : LPWSTR optional -> "wstr"
; Flags : DWORD -> "int"
; AuditLogDir : LPWSTR* out -> "var"
; DiskCheckInterval : DWORD* in/out -> "var"
; MaxLogFilesSize : DWORD* in/out -> "var"
; MinSpaceOnDisk : DWORD* 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 DhcpAuditLogGetParams(LPWSTR ServerIpAddress, DWORD Flags, LPWSTR* AuditLogDir, DWORD* DiskCheckInterval, DWORD* MaxLogFilesSize, DWORD* MinSpaceOnDisk)
#uselib "DHCPSAPI.dll"
#cfunc global DhcpAuditLogGetParams "DhcpAuditLogGetParams" wstr, int, var, var, var, var
; res = DhcpAuditLogGetParams(ServerIpAddress, Flags, AuditLogDir, DiskCheckInterval, MaxLogFilesSize, MinSpaceOnDisk)
; ServerIpAddress : LPWSTR optional -> "wstr"
; Flags : DWORD -> "int"
; AuditLogDir : LPWSTR* out -> "var"
; DiskCheckInterval : DWORD* in/out -> "var"
; MaxLogFilesSize : DWORD* in/out -> "var"
; MinSpaceOnDisk : DWORD* 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 (
	dhcpsapi = windows.NewLazySystemDLL("DHCPSAPI.dll")
	procDhcpAuditLogGetParams = dhcpsapi.NewProc("DhcpAuditLogGetParams")
)

// ServerIpAddress (LPWSTR optional), Flags (DWORD), AuditLogDir (LPWSTR* out), DiskCheckInterval (DWORD* in/out), MaxLogFilesSize (DWORD* in/out), MinSpaceOnDisk (DWORD* in/out)
r1, _, err := procDhcpAuditLogGetParams.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ServerIpAddress))),
	uintptr(Flags),
	uintptr(AuditLogDir),
	uintptr(DiskCheckInterval),
	uintptr(MaxLogFilesSize),
	uintptr(MinSpaceOnDisk),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpAuditLogGetParams(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  Flags: DWORD;   // DWORD
  AuditLogDir: PPWideChar;   // LPWSTR* out
  DiskCheckInterval: Pointer;   // DWORD* in/out
  MaxLogFilesSize: Pointer;   // DWORD* in/out
  MinSpaceOnDisk: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpAuditLogGetParams';

result := DllCall("DHCPSAPI\DhcpAuditLogGetParams"
    , "WStr", ServerIpAddress   ; LPWSTR optional
    , "UInt", Flags   ; DWORD
    , "Ptr", AuditLogDir   ; LPWSTR* out
    , "Ptr", DiskCheckInterval   ; DWORD* in/out
    , "Ptr", MaxLogFilesSize   ; DWORD* in/out
    , "Ptr", MinSpaceOnDisk   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●DhcpAuditLogGetParams(ServerIpAddress, Flags, AuditLogDir, DiskCheckInterval, MaxLogFilesSize, MinSpaceOnDisk) = DLL("DHCPSAPI.dll", "dword DhcpAuditLogGetParams(char*, dword, void*, void*, void*, void*)")
# 呼び出し: DhcpAuditLogGetParams(ServerIpAddress, Flags, AuditLogDir, DiskCheckInterval, MaxLogFilesSize, MinSpaceOnDisk)
# ServerIpAddress : LPWSTR optional -> "char*"
# Flags : DWORD -> "dword"
# AuditLogDir : LPWSTR* out -> "void*"
# DiskCheckInterval : DWORD* in/out -> "void*"
# MaxLogFilesSize : DWORD* in/out -> "void*"
# MinSpaceOnDisk : 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)。