DnsRecordSetCopyEx

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

DNS_RECORDA* DnsRecordSetCopyEx(
    DNS_RECORDA* pRecordSet,
    DNS_CHARSET CharSetIn,
    DNS_CHARSET CharSetOut
);

<DllImport("DNSAPI.dll", ExactSpelling:=True)>
Public Shared Function DnsRecordSetCopyEx(
    pRecordSet As IntPtr,   ' DNS_RECORDA*
    CharSetIn As Integer,   ' DNS_CHARSET
    CharSetOut As Integer   ' DNS_CHARSET
) As IntPtr
End Function

' pRecordSet : DNS_RECORDA*
' CharSetIn : DNS_CHARSET
' CharSetOut : DNS_CHARSET
Declare PtrSafe Function DnsRecordSetCopyEx Lib "dnsapi" ( _
    ByVal pRecordSet As LongPtr, _
    ByVal CharSetIn As Long, _
    ByVal CharSetOut As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DnsRecordSetCopyEx = ctypes.windll.dnsapi.DnsRecordSetCopyEx
DnsRecordSetCopyEx.restype = ctypes.c_void_p
DnsRecordSetCopyEx.argtypes = [
    ctypes.c_void_p,  # pRecordSet : DNS_RECORDA*
    ctypes.c_int,  # CharSetIn : DNS_CHARSET
    ctypes.c_int,  # CharSetOut : DNS_CHARSET
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DNSAPI.dll')
DnsRecordSetCopyEx = Fiddle::Function.new(
  lib['DnsRecordSetCopyEx'],
  [
    Fiddle::TYPE_VOIDP,  # pRecordSet : DNS_RECORDA*
    Fiddle::TYPE_INT,  # CharSetIn : DNS_CHARSET
    Fiddle::TYPE_INT,  # CharSetOut : DNS_CHARSET
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "dnsapi")]
extern "system" {
    fn DnsRecordSetCopyEx(
        pRecordSet: *mut DNS_RECORDA,  // DNS_RECORDA*
        CharSetIn: i32,  // DNS_CHARSET
        CharSetOut: i32  // DNS_CHARSET
    ) -> *mut DNS_RECORDA;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DNSAPI.dll")]
public static extern IntPtr DnsRecordSetCopyEx(IntPtr pRecordSet, int CharSetIn, int CharSetOut);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DNSAPI_DnsRecordSetCopyEx' -Namespace Win32 -PassThru
# $api::DnsRecordSetCopyEx(pRecordSet, CharSetIn, CharSetOut)

#uselib "DNSAPI.dll"
#func global DnsRecordSetCopyEx "DnsRecordSetCopyEx" sptr, sptr, sptr
; DnsRecordSetCopyEx varptr(pRecordSet), CharSetIn, CharSetOut   ; 戻り値は stat
; pRecordSet : DNS_RECORDA* -> "sptr"
; CharSetIn : DNS_CHARSET -> "sptr"
; CharSetOut : DNS_CHARSET -> "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 DnsRecordSetCopyEx "DnsRecordSetCopyEx" var, int, int
; res = DnsRecordSetCopyEx(pRecordSet, CharSetIn, CharSetOut)
; pRecordSet : DNS_RECORDA* -> "var"
; CharSetIn : DNS_CHARSET -> "int"
; CharSetOut : DNS_CHARSET -> "int"
; ※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。

; DNS_RECORDA* DnsRecordSetCopyEx(DNS_RECORDA* pRecordSet, DNS_CHARSET CharSetIn, DNS_CHARSET CharSetOut)
#uselib "DNSAPI.dll"
#cfunc global DnsRecordSetCopyEx "DnsRecordSetCopyEx" var, int, int
; res = DnsRecordSetCopyEx(pRecordSet, CharSetIn, CharSetOut)
; pRecordSet : DNS_RECORDA* -> "var"
; CharSetIn : DNS_CHARSET -> "int"
; CharSetOut : DNS_CHARSET -> "int"
; ※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")
	procDnsRecordSetCopyEx = dnsapi.NewProc("DnsRecordSetCopyEx")
)

// pRecordSet (DNS_RECORDA*), CharSetIn (DNS_CHARSET), CharSetOut (DNS_CHARSET)
r1, _, err := procDnsRecordSetCopyEx.Call(
	uintptr(pRecordSet),
	uintptr(CharSetIn),
	uintptr(CharSetOut),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DNS_RECORDA*

function DnsRecordSetCopyEx(
  pRecordSet: Pointer;   // DNS_RECORDA*
  CharSetIn: Integer;   // DNS_CHARSET
  CharSetOut: Integer   // DNS_CHARSET
): Pointer; stdcall;
  external 'DNSAPI.dll' name 'DnsRecordSetCopyEx';

result := DllCall("DNSAPI\DnsRecordSetCopyEx"
    , "Ptr", pRecordSet   ; DNS_RECORDA*
    , "Int", CharSetIn   ; DNS_CHARSET
    , "Int", CharSetOut   ; DNS_CHARSET
    , "Ptr")   ; return: DNS_RECORDA*

●DnsRecordSetCopyEx(pRecordSet, CharSetIn, CharSetOut) = DLL("DNSAPI.dll", "void* DnsRecordSetCopyEx(void*, int, int)")
# 呼び出し: DnsRecordSetCopyEx(pRecordSet, CharSetIn, CharSetOut)
# pRecordSet : DNS_RECORDA* -> "void*"
# CharSetIn : DNS_CHARSET -> "int"
# CharSetOut : DNS_CHARSET -> "int"
# 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)。