DhcpServerRedoAuthorization

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

DWORD DhcpServerRedoAuthorization(
    LPWSTR ServerIpAddr,   // optional
    DWORD dwReserved
);

<DllImport("DHCPSAPI.dll", ExactSpelling:=True)>
Public Shared Function DhcpServerRedoAuthorization(
    <MarshalAs(UnmanagedType.LPWStr)> ServerIpAddr As String,   ' LPWSTR optional
    dwReserved As UInteger   ' DWORD
) As UInteger
End Function

' ServerIpAddr : LPWSTR optional
' dwReserved : DWORD
Declare PtrSafe Function DhcpServerRedoAuthorization Lib "dhcpsapi" ( _
    ByVal ServerIpAddr As LongPtr, _
    ByVal dwReserved 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

DhcpServerRedoAuthorization = ctypes.windll.dhcpsapi.DhcpServerRedoAuthorization
DhcpServerRedoAuthorization.restype = wintypes.DWORD
DhcpServerRedoAuthorization.argtypes = [
    wintypes.LPCWSTR,  # ServerIpAddr : LPWSTR optional
    wintypes.DWORD,  # dwReserved : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DHCPSAPI.dll')
DhcpServerRedoAuthorization = Fiddle::Function.new(
  lib['DhcpServerRedoAuthorization'],
  [
    Fiddle::TYPE_VOIDP,  # ServerIpAddr : LPWSTR optional
    -Fiddle::TYPE_INT,  # dwReserved : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpsapi")]
extern "system" {
    fn DhcpServerRedoAuthorization(
        ServerIpAddr: *mut u16,  // LPWSTR optional
        dwReserved: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DHCPSAPI.dll")]
public static extern uint DhcpServerRedoAuthorization([MarshalAs(UnmanagedType.LPWStr)] string ServerIpAddr, uint dwReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DHCPSAPI_DhcpServerRedoAuthorization' -Namespace Win32 -PassThru
# $api::DhcpServerRedoAuthorization(ServerIpAddr, dwReserved)

#uselib "DHCPSAPI.dll"
#func global DhcpServerRedoAuthorization "DhcpServerRedoAuthorization" sptr, sptr
; DhcpServerRedoAuthorization ServerIpAddr, dwReserved   ; 戻り値は stat
; ServerIpAddr : LPWSTR optional -> "sptr"
; dwReserved : DWORD -> "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 DhcpServerRedoAuthorization "DhcpServerRedoAuthorization" wstr, int
; res = DhcpServerRedoAuthorization(ServerIpAddr, dwReserved)
; ServerIpAddr : LPWSTR optional -> "wstr"
; dwReserved : DWORD -> "int"

; DWORD DhcpServerRedoAuthorization(LPWSTR ServerIpAddr, DWORD dwReserved)
#uselib "DHCPSAPI.dll"
#cfunc global DhcpServerRedoAuthorization "DhcpServerRedoAuthorization" wstr, int
; res = DhcpServerRedoAuthorization(ServerIpAddr, dwReserved)
; ServerIpAddr : LPWSTR optional -> "wstr"
; dwReserved : DWORD -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	dhcpsapi = windows.NewLazySystemDLL("DHCPSAPI.dll")
	procDhcpServerRedoAuthorization = dhcpsapi.NewProc("DhcpServerRedoAuthorization")
)

// ServerIpAddr (LPWSTR optional), dwReserved (DWORD)
r1, _, err := procDhcpServerRedoAuthorization.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ServerIpAddr))),
	uintptr(dwReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpServerRedoAuthorization(
  ServerIpAddr: PWideChar;   // LPWSTR optional
  dwReserved: DWORD   // DWORD
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpServerRedoAuthorization';

result := DllCall("DHCPSAPI\DhcpServerRedoAuthorization"
    , "WStr", ServerIpAddr   ; LPWSTR optional
    , "UInt", dwReserved   ; DWORD
    , "UInt")   ; return: DWORD

●DhcpServerRedoAuthorization(ServerIpAddr, dwReserved) = DLL("DHCPSAPI.dll", "dword DhcpServerRedoAuthorization(char*, dword)")
# 呼び出し: DhcpServerRedoAuthorization(ServerIpAddr, dwReserved)
# ServerIpAddr : LPWSTR optional -> "char*"
# dwReserved : DWORD -> "dword"
# 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)。