ADsGetLastError

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

HRESULT ADsGetLastError(
    DWORD* lpError,
    LPWSTR lpErrorBuf,
    DWORD dwErrorBufLen,
    LPWSTR lpNameBuf,
    DWORD dwNameBufLen
);

<DllImport("ACTIVEDS.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function ADsGetLastError(
    ByRef lpError As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPWStr)> lpErrorBuf As System.Text.StringBuilder,   ' LPWSTR out
    dwErrorBufLen As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> lpNameBuf As System.Text.StringBuilder,   ' LPWSTR out
    dwNameBufLen As UInteger   ' DWORD
) As Integer
End Function

' lpError : DWORD* in/out
' lpErrorBuf : LPWSTR out
' dwErrorBufLen : DWORD
' lpNameBuf : LPWSTR out
' dwNameBufLen : DWORD
Declare PtrSafe Function ADsGetLastError Lib "activeds" ( _
    ByRef lpError As Long, _
    ByVal lpErrorBuf As LongPtr, _
    ByVal dwErrorBufLen As Long, _
    ByVal lpNameBuf As LongPtr, _
    ByVal dwNameBufLen 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

ADsGetLastError = ctypes.windll.activeds.ADsGetLastError
ADsGetLastError.restype = ctypes.c_int
ADsGetLastError.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # lpError : DWORD* in/out
    wintypes.LPWSTR,  # lpErrorBuf : LPWSTR out
    wintypes.DWORD,  # dwErrorBufLen : DWORD
    wintypes.LPWSTR,  # lpNameBuf : LPWSTR out
    wintypes.DWORD,  # dwNameBufLen : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ACTIVEDS.dll')
ADsGetLastError = Fiddle::Function.new(
  lib['ADsGetLastError'],
  [
    Fiddle::TYPE_VOIDP,  # lpError : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # lpErrorBuf : LPWSTR out
    -Fiddle::TYPE_INT,  # dwErrorBufLen : DWORD
    Fiddle::TYPE_VOIDP,  # lpNameBuf : LPWSTR out
    -Fiddle::TYPE_INT,  # dwNameBufLen : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "activeds")]
extern "system" {
    fn ADsGetLastError(
        lpError: *mut u32,  // DWORD* in/out
        lpErrorBuf: *mut u16,  // LPWSTR out
        dwErrorBufLen: u32,  // DWORD
        lpNameBuf: *mut u16,  // LPWSTR out
        dwNameBufLen: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ACTIVEDS.dll", SetLastError = true)]
public static extern int ADsGetLastError(ref uint lpError, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpErrorBuf, uint dwErrorBufLen, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpNameBuf, uint dwNameBufLen);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ACTIVEDS_ADsGetLastError' -Namespace Win32 -PassThru
# $api::ADsGetLastError(lpError, lpErrorBuf, dwErrorBufLen, lpNameBuf, dwNameBufLen)

#uselib "ACTIVEDS.dll"
#func global ADsGetLastError "ADsGetLastError" sptr, sptr, sptr, sptr, sptr
; ADsGetLastError varptr(lpError), varptr(lpErrorBuf), dwErrorBufLen, varptr(lpNameBuf), dwNameBufLen   ; 戻り値は stat
; lpError : DWORD* in/out -> "sptr"
; lpErrorBuf : LPWSTR out -> "sptr"
; dwErrorBufLen : DWORD -> "sptr"
; lpNameBuf : LPWSTR out -> "sptr"
; dwNameBufLen : 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 "ACTIVEDS.dll"
#cfunc global ADsGetLastError "ADsGetLastError" var, var, int, var, int
; res = ADsGetLastError(lpError, lpErrorBuf, dwErrorBufLen, lpNameBuf, dwNameBufLen)
; lpError : DWORD* in/out -> "var"
; lpErrorBuf : LPWSTR out -> "var"
; dwErrorBufLen : DWORD -> "int"
; lpNameBuf : LPWSTR out -> "var"
; dwNameBufLen : DWORD -> "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。

; HRESULT ADsGetLastError(DWORD* lpError, LPWSTR lpErrorBuf, DWORD dwErrorBufLen, LPWSTR lpNameBuf, DWORD dwNameBufLen)
#uselib "ACTIVEDS.dll"
#cfunc global ADsGetLastError "ADsGetLastError" var, var, int, var, int
; res = ADsGetLastError(lpError, lpErrorBuf, dwErrorBufLen, lpNameBuf, dwNameBufLen)
; lpError : DWORD* in/out -> "var"
; lpErrorBuf : LPWSTR out -> "var"
; dwErrorBufLen : DWORD -> "int"
; lpNameBuf : LPWSTR out -> "var"
; dwNameBufLen : DWORD -> "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 (
	activeds = windows.NewLazySystemDLL("ACTIVEDS.dll")
	procADsGetLastError = activeds.NewProc("ADsGetLastError")
)

// lpError (DWORD* in/out), lpErrorBuf (LPWSTR out), dwErrorBufLen (DWORD), lpNameBuf (LPWSTR out), dwNameBufLen (DWORD)
r1, _, err := procADsGetLastError.Call(
	uintptr(lpError),
	uintptr(lpErrorBuf),
	uintptr(dwErrorBufLen),
	uintptr(lpNameBuf),
	uintptr(dwNameBufLen),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function ADsGetLastError(
  lpError: Pointer;   // DWORD* in/out
  lpErrorBuf: PWideChar;   // LPWSTR out
  dwErrorBufLen: DWORD;   // DWORD
  lpNameBuf: PWideChar;   // LPWSTR out
  dwNameBufLen: DWORD   // DWORD
): Integer; stdcall;
  external 'ACTIVEDS.dll' name 'ADsGetLastError';

result := DllCall("ACTIVEDS\ADsGetLastError"
    , "Ptr", lpError   ; DWORD* in/out
    , "Ptr", lpErrorBuf   ; LPWSTR out
    , "UInt", dwErrorBufLen   ; DWORD
    , "Ptr", lpNameBuf   ; LPWSTR out
    , "UInt", dwNameBufLen   ; DWORD
    , "Int")   ; return: HRESULT

●ADsGetLastError(lpError, lpErrorBuf, dwErrorBufLen, lpNameBuf, dwNameBufLen) = DLL("ACTIVEDS.dll", "int ADsGetLastError(void*, char*, dword, char*, dword)")
# 呼び出し: ADsGetLastError(lpError, lpErrorBuf, dwErrorBufLen, lpNameBuf, dwNameBufLen)
# lpError : DWORD* in/out -> "void*"
# lpErrorBuf : LPWSTR out -> "char*"
# dwErrorBufLen : DWORD -> "dword"
# lpNameBuf : LPWSTR out -> "char*"
# dwNameBufLen : 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)。