DnsServiceDeRegister

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

DWORD DnsServiceDeRegister(
    DNS_SERVICE_REGISTER_REQUEST* pRequest,
    DNS_SERVICE_CANCEL* pCancel   // optional
);

<DllImport("DNSAPI.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DnsServiceDeRegister(
    pRequest As IntPtr,   ' DNS_SERVICE_REGISTER_REQUEST*
    pCancel As IntPtr   ' DNS_SERVICE_CANCEL* optional, in/out
) As UInteger
End Function

' pRequest : DNS_SERVICE_REGISTER_REQUEST*
' pCancel : DNS_SERVICE_CANCEL* optional, in/out
Declare PtrSafe Function DnsServiceDeRegister Lib "dnsapi" ( _
    ByVal pRequest As LongPtr, _
    ByVal pCancel 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

DnsServiceDeRegister = ctypes.windll.dnsapi.DnsServiceDeRegister
DnsServiceDeRegister.restype = wintypes.DWORD
DnsServiceDeRegister.argtypes = [
    ctypes.c_void_p,  # pRequest : DNS_SERVICE_REGISTER_REQUEST*
    ctypes.c_void_p,  # pCancel : DNS_SERVICE_CANCEL* optional, in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DNSAPI.dll')
DnsServiceDeRegister = Fiddle::Function.new(
  lib['DnsServiceDeRegister'],
  [
    Fiddle::TYPE_VOIDP,  # pRequest : DNS_SERVICE_REGISTER_REQUEST*
    Fiddle::TYPE_VOIDP,  # pCancel : DNS_SERVICE_CANCEL* optional, in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dnsapi")]
extern "system" {
    fn DnsServiceDeRegister(
        pRequest: *mut DNS_SERVICE_REGISTER_REQUEST,  // DNS_SERVICE_REGISTER_REQUEST*
        pCancel: *mut DNS_SERVICE_CANCEL  // DNS_SERVICE_CANCEL* optional, in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DNSAPI.dll", SetLastError = true)]
public static extern uint DnsServiceDeRegister(IntPtr pRequest, IntPtr pCancel);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DNSAPI_DnsServiceDeRegister' -Namespace Win32 -PassThru
# $api::DnsServiceDeRegister(pRequest, pCancel)

#uselib "DNSAPI.dll"
#func global DnsServiceDeRegister "DnsServiceDeRegister" sptr, sptr
; DnsServiceDeRegister varptr(pRequest), varptr(pCancel)   ; 戻り値は stat
; pRequest : DNS_SERVICE_REGISTER_REQUEST* -> "sptr"
; pCancel : DNS_SERVICE_CANCEL* optional, 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 "DNSAPI.dll"
#cfunc global DnsServiceDeRegister "DnsServiceDeRegister" var, var
; res = DnsServiceDeRegister(pRequest, pCancel)
; pRequest : DNS_SERVICE_REGISTER_REQUEST* -> "var"
; pCancel : DNS_SERVICE_CANCEL* optional, 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 DnsServiceDeRegister(DNS_SERVICE_REGISTER_REQUEST* pRequest, DNS_SERVICE_CANCEL* pCancel)
#uselib "DNSAPI.dll"
#cfunc global DnsServiceDeRegister "DnsServiceDeRegister" var, var
; res = DnsServiceDeRegister(pRequest, pCancel)
; pRequest : DNS_SERVICE_REGISTER_REQUEST* -> "var"
; pCancel : DNS_SERVICE_CANCEL* optional, 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 (
	dnsapi = windows.NewLazySystemDLL("DNSAPI.dll")
	procDnsServiceDeRegister = dnsapi.NewProc("DnsServiceDeRegister")
)

// pRequest (DNS_SERVICE_REGISTER_REQUEST*), pCancel (DNS_SERVICE_CANCEL* optional, in/out)
r1, _, err := procDnsServiceDeRegister.Call(
	uintptr(pRequest),
	uintptr(pCancel),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DnsServiceDeRegister(
  pRequest: Pointer;   // DNS_SERVICE_REGISTER_REQUEST*
  pCancel: Pointer   // DNS_SERVICE_CANCEL* optional, in/out
): DWORD; stdcall;
  external 'DNSAPI.dll' name 'DnsServiceDeRegister';

result := DllCall("DNSAPI\DnsServiceDeRegister"
    , "Ptr", pRequest   ; DNS_SERVICE_REGISTER_REQUEST*
    , "Ptr", pCancel   ; DNS_SERVICE_CANCEL* optional, in/out
    , "UInt")   ; return: DWORD

●DnsServiceDeRegister(pRequest, pCancel) = DLL("DNSAPI.dll", "dword DnsServiceDeRegister(void*, void*)")
# 呼び出し: DnsServiceDeRegister(pRequest, pCancel)
# pRequest : DNS_SERVICE_REGISTER_REQUEST* -> "void*"
# pCancel : DNS_SERVICE_CANCEL* optional, 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)。