LdapUnicodeToUTF8

// WLDAP32.dll
#include <windows.h>

INT LdapUnicodeToUTF8(
    LPCWSTR lpSrcStr,
    INT cchSrc,
    LPSTR lpDestStr,
    INT cchDest
);

<DllImport("WLDAP32.dll", SetLastError:=True, ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function LdapUnicodeToUTF8(
    <MarshalAs(UnmanagedType.LPWStr)> lpSrcStr As String,   ' LPCWSTR
    cchSrc As Integer,   ' INT
    <MarshalAs(UnmanagedType.LPStr)> lpDestStr As System.Text.StringBuilder,   ' LPSTR out
    cchDest As Integer   ' INT
) As Integer
End Function

' lpSrcStr : LPCWSTR
' cchSrc : INT
' lpDestStr : LPSTR out
' cchDest : INT
Declare PtrSafe Function LdapUnicodeToUTF8 Lib "wldap32" ( _
    ByVal lpSrcStr As LongPtr, _
    ByVal cchSrc As Long, _
    ByVal lpDestStr As String, _
    ByVal cchDest 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

LdapUnicodeToUTF8 = ctypes.cdll.wldap32.LdapUnicodeToUTF8
LdapUnicodeToUTF8.restype = ctypes.c_int
LdapUnicodeToUTF8.argtypes = [
    wintypes.LPCWSTR,  # lpSrcStr : LPCWSTR
    ctypes.c_int,  # cchSrc : INT
    wintypes.LPSTR,  # lpDestStr : LPSTR out
    ctypes.c_int,  # cchDest : INT
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WLDAP32.dll')
LdapUnicodeToUTF8 = Fiddle::Function.new(
  lib['LdapUnicodeToUTF8'],
  [
    Fiddle::TYPE_VOIDP,  # lpSrcStr : LPCWSTR
    Fiddle::TYPE_INT,  # cchSrc : INT
    Fiddle::TYPE_VOIDP,  # lpDestStr : LPSTR out
    Fiddle::TYPE_INT,  # cchDest : INT
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "wldap32")]
extern "C" {
    fn LdapUnicodeToUTF8(
        lpSrcStr: *const u16,  // LPCWSTR
        cchSrc: i32,  // INT
        lpDestStr: *mut u8,  // LPSTR out
        cchDest: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WLDAP32.dll", SetLastError = true, CallingConvention = CallingConvention.Cdecl)]
public static extern int LdapUnicodeToUTF8([MarshalAs(UnmanagedType.LPWStr)] string lpSrcStr, int cchSrc, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpDestStr, int cchDest);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WLDAP32_LdapUnicodeToUTF8' -Namespace Win32 -PassThru
# $api::LdapUnicodeToUTF8(lpSrcStr, cchSrc, lpDestStr, cchDest)

#uselib "WLDAP32.dll"
#func global LdapUnicodeToUTF8 "LdapUnicodeToUTF8" sptr, sptr, sptr, sptr
; LdapUnicodeToUTF8 lpSrcStr, cchSrc, varptr(lpDestStr), cchDest   ; 戻り値は stat
; lpSrcStr : LPCWSTR -> "sptr"
; cchSrc : INT -> "sptr"
; lpDestStr : LPSTR out -> "sptr"
; cchDest : INT -> "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。

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

var (
	wldap32 = windows.NewLazySystemDLL("WLDAP32.dll")
	procLdapUnicodeToUTF8 = wldap32.NewProc("LdapUnicodeToUTF8")
)

// lpSrcStr (LPCWSTR), cchSrc (INT), lpDestStr (LPSTR out), cchDest (INT)
r1, _, err := procLdapUnicodeToUTF8.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpSrcStr))),
	uintptr(cchSrc),
	uintptr(lpDestStr),
	uintptr(cchDest),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function LdapUnicodeToUTF8(
  lpSrcStr: PWideChar;   // LPCWSTR
  cchSrc: Integer;   // INT
  lpDestStr: PAnsiChar;   // LPSTR out
  cchDest: Integer   // INT
): Integer; cdecl;
  external 'WLDAP32.dll' name 'LdapUnicodeToUTF8';

result := DllCall("WLDAP32\LdapUnicodeToUTF8"
    , "WStr", lpSrcStr   ; LPCWSTR
    , "Int", cchSrc   ; INT
    , "Ptr", lpDestStr   ; LPSTR out
    , "Int", cchDest   ; INT
    , "Cdecl Int")   ; return: INT

●LdapUnicodeToUTF8(lpSrcStr, cchSrc, lpDestStr, cchDest) = DLL("WLDAP32.dll", "int LdapUnicodeToUTF8(char*, int, char*, int)")
# 呼び出し: LdapUnicodeToUTF8(lpSrcStr, cchSrc, lpDestStr, cchDest)
# lpSrcStr : LPCWSTR -> "char*"
# cchSrc : INT -> "int"
# lpDestStr : LPSTR out -> "char*"
# cchDest : INT -> "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)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。

const std = @import("std");

extern "wldap32" fn LdapUnicodeToUTF8(
    lpSrcStr: [*c]const u16, // LPCWSTR
    cchSrc: i32, // INT
    lpDestStr: [*c]u8, // LPSTR out
    cchDest: i32 // INT
) callconv(.c) i32;

proc LdapUnicodeToUTF8(
    lpSrcStr: WideCString,  # LPCWSTR
    cchSrc: int32,  # INT
    lpDestStr: ptr char,  # LPSTR out
    cchDest: int32  # INT
): int32 {.importc: "LdapUnicodeToUTF8", cdecl, dynlib: "WLDAP32.dll".}

pragma(lib, "wldap32");
extern(C)
int LdapUnicodeToUTF8(
    const(wchar)* lpSrcStr,   // LPCWSTR
    int cchSrc,   // INT
    char* lpDestStr,   // LPSTR out
    int cchDest   // INT
);

ccall((:LdapUnicodeToUTF8, "WLDAP32.dll"), Int32,
      (Cwstring, Int32, Ptr{UInt8}, Int32),
      lpSrcStr, cchSrc, lpDestStr, cchDest)
# lpSrcStr : LPCWSTR -> Cwstring
# cchSrc : INT -> Int32
# lpDestStr : LPSTR out -> Ptr{UInt8}
# cchDest : INT -> Int32

local ffi = require("ffi")
ffi.cdef[[
int32_t LdapUnicodeToUTF8(
    const uint16_t* lpSrcStr,
    int32_t cchSrc,
    char* lpDestStr,
    int32_t cchDest);
]]
local wldap32 = ffi.load("wldap32")
-- wldap32.LdapUnicodeToUTF8(lpSrcStr, cchSrc, lpDestStr, cchDest)
-- lpSrcStr : LPCWSTR
-- cchSrc : INT
-- lpDestStr : LPSTR out
-- cchDest : INT
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('WLDAP32.dll');
const LdapUnicodeToUTF8 = lib.func('__cdecl', 'LdapUnicodeToUTF8', 'int32_t', ['str16', 'int32_t', 'char *', 'int32_t']);
// LdapUnicodeToUTF8(lpSrcStr, cchSrc, lpDestStr, cchDest)
// lpSrcStr : LPCWSTR -> 'str16'
// cchSrc : INT -> 'int32_t'
// lpDestStr : LPSTR out -> 'char *'
// cchDest : INT -> 'int32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("WLDAP32.dll", {
  LdapUnicodeToUTF8: { parameters: ["buffer", "i32", "buffer", "i32"], result: "i32" },
});
// lib.symbols.LdapUnicodeToUTF8(lpSrcStr, cchSrc, lpDestStr, cchDest)
// lpSrcStr : LPCWSTR -> "buffer"
// cchSrc : INT -> "i32"
// lpDestStr : LPSTR out -> "buffer"
// cchDest : INT -> "i32"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t LdapUnicodeToUTF8(
    const uint16_t* lpSrcStr,
    int32_t cchSrc,
    char* lpDestStr,
    int32_t cchDest);
C, "WLDAP32.dll");
// $ffi->LdapUnicodeToUTF8(lpSrcStr, cchSrc, lpDestStr, cchDest);
// lpSrcStr : LPCWSTR
// cchSrc : INT
// lpDestStr : LPSTR out
// cchDest : INT
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Wldap32 extends Library {
    Wldap32 INSTANCE = Native.load("wldap32", Wldap32.class);
    int LdapUnicodeToUTF8(
        WString lpSrcStr,   // LPCWSTR
        int cchSrc,   // INT
        byte[] lpDestStr,   // LPSTR out
        int cchDest   // INT
    );
}

@[Link("wldap32")]
lib LibWLDAP32
  fun LdapUnicodeToUTF8 = LdapUnicodeToUTF8(
    lpSrcStr : UInt16*,   # LPCWSTR
    cchSrc : Int32,   # INT
    lpDestStr : UInt8*,   # LPSTR out
    cchDest : Int32   # INT
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef LdapUnicodeToUTF8Native = Int32 Function(Pointer<Utf16>, Int32, Pointer<Utf8>, Int32);
typedef LdapUnicodeToUTF8Dart = int Function(Pointer<Utf16>, int, Pointer<Utf8>, int);
final LdapUnicodeToUTF8 = DynamicLibrary.open('WLDAP32.dll')
    .lookupFunction<LdapUnicodeToUTF8Native, LdapUnicodeToUTF8Dart>('LdapUnicodeToUTF8');
// lpSrcStr : LPCWSTR -> Pointer<Utf16>
// cchSrc : INT -> Int32
// lpDestStr : LPSTR out -> Pointer<Utf8>
// cchDest : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function LdapUnicodeToUTF8(
  lpSrcStr: PWideChar;   // LPCWSTR
  cchSrc: Integer;   // INT
  lpDestStr: PAnsiChar;   // LPSTR out
  cchDest: Integer   // INT
): Integer; cdecl;
  external 'WLDAP32.dll' name 'LdapUnicodeToUTF8';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import ccall safe "LdapUnicodeToUTF8"
  c_LdapUnicodeToUTF8 :: CWString -> Int32 -> CString -> Int32 -> IO Int32
-- lpSrcStr : LPCWSTR -> CWString
-- cchSrc : INT -> Int32
-- lpDestStr : LPSTR out -> CString
-- cchDest : INT -> Int32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let ldapunicodetoutf8 =
  foreign "LdapUnicodeToUTF8"
    ((ptr uint16_t) @-> int32_t @-> string @-> int32_t @-> returning int32_t)
(* lpSrcStr : LPCWSTR -> (ptr uint16_t) *)
(* cchSrc : INT -> int32_t *)
(* lpDestStr : LPSTR out -> string *)
(* cchDest : INT -> int32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library wldap32 (t "WLDAP32.dll"))
(cffi:use-foreign-library wldap32)

(cffi:defcfun ("LdapUnicodeToUTF8" ldap-unicode-to-utf8 :convention :cdecl) :int32
  (lp-src-str (:string :encoding :utf-16le))   ; LPCWSTR
  (cch-src :int32)   ; INT
  (lp-dest-str :pointer)   ; LPSTR out
  (cch-dest :int32))   ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $LdapUnicodeToUTF8 = Win32::API::More->new('WLDAP32',
    'int LdapUnicodeToUTF8(LPCWSTR lpSrcStr, int cchSrc, LPSTR lpDestStr, int cchDest)');
# my $ret = $LdapUnicodeToUTF8->Call($lpSrcStr, $cchSrc, $lpDestStr, $cchDest);
# lpSrcStr : LPCWSTR -> LPCWSTR
# cchSrc : INT -> int
# lpDestStr : LPSTR out -> LPSTR
# cchDest : INT -> int
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。