bcp_initW

// odbcbcp.dll  (Unicode / -W)
#include <windows.h>

SHORT bcp_initW(
    void* param0,
    LPCWSTR param1,
    LPCWSTR param2,
    LPCWSTR param3,
    INT param4
);

<DllImport("odbcbcp.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function bcp_initW(
    param0 As IntPtr,   ' void* in/out
    <MarshalAs(UnmanagedType.LPWStr)> param1 As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> param2 As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> param3 As String,   ' LPCWSTR
    param4 As Integer   ' INT
) As Short
End Function

' param0 : void* in/out
' param1 : LPCWSTR
' param2 : LPCWSTR
' param3 : LPCWSTR
' param4 : INT
Declare PtrSafe Function bcp_initW Lib "odbcbcp" ( _
    ByVal param0 As LongPtr, _
    ByVal param1 As LongPtr, _
    ByVal param2 As LongPtr, _
    ByVal param3 As LongPtr, _
    ByVal param4 As Long) As Integer
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

bcp_initW = ctypes.windll.odbcbcp.bcp_initW
bcp_initW.restype = ctypes.c_short
bcp_initW.argtypes = [
    ctypes.POINTER(None),  # param0 : void* in/out
    wintypes.LPCWSTR,  # param1 : LPCWSTR
    wintypes.LPCWSTR,  # param2 : LPCWSTR
    wintypes.LPCWSTR,  # param3 : LPCWSTR
    ctypes.c_int,  # param4 : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('odbcbcp.dll')
bcp_initW = Fiddle::Function.new(
  lib['bcp_initW'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : void* in/out
    Fiddle::TYPE_VOIDP,  # param1 : LPCWSTR
    Fiddle::TYPE_VOIDP,  # param2 : LPCWSTR
    Fiddle::TYPE_VOIDP,  # param3 : LPCWSTR
    Fiddle::TYPE_INT,  # param4 : INT
  ],
  Fiddle::TYPE_SHORT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "odbcbcp")]
extern "system" {
    fn bcp_initW(
        param0: *mut (),  // void* in/out
        param1: *const u16,  // LPCWSTR
        param2: *const u16,  // LPCWSTR
        param3: *const u16,  // LPCWSTR
        param4: i32  // INT
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("odbcbcp.dll", CharSet = CharSet.Unicode)]
public static extern short bcp_initW(IntPtr param0, [MarshalAs(UnmanagedType.LPWStr)] string param1, [MarshalAs(UnmanagedType.LPWStr)] string param2, [MarshalAs(UnmanagedType.LPWStr)] string param3, int param4);
"@
$api = Add-Type -MemberDefinition $sig -Name 'odbcbcp_bcp_initW' -Namespace Win32 -PassThru
# $api::bcp_initW(param0, param1, param2, param3, param4)

#uselib "odbcbcp.dll"
#func global bcp_initW "bcp_initW" wptr, wptr, wptr, wptr, wptr
; bcp_initW param0, param1, param2, param3, param4   ; 戻り値は stat
; param0 : void* in/out -> "wptr"
; param1 : LPCWSTR -> "wptr"
; param2 : LPCWSTR -> "wptr"
; param3 : LPCWSTR -> "wptr"
; param4 : INT -> "wptr"
; ※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 "odbcbcp.dll"
#cfunc global bcp_initW "bcp_initW" sptr, wstr, wstr, wstr, int
; res = bcp_initW(param0, param1, param2, param3, param4)
; param0 : void* in/out -> "sptr"
; param1 : LPCWSTR -> "wstr"
; param2 : LPCWSTR -> "wstr"
; param3 : LPCWSTR -> "wstr"
; param4 : INT -> "int"

; SHORT bcp_initW(void* param0, LPCWSTR param1, LPCWSTR param2, LPCWSTR param3, INT param4)
#uselib "odbcbcp.dll"
#cfunc global bcp_initW "bcp_initW" intptr, wstr, wstr, wstr, int
; res = bcp_initW(param0, param1, param2, param3, param4)
; param0 : void* in/out -> "intptr"
; param1 : LPCWSTR -> "wstr"
; param2 : LPCWSTR -> "wstr"
; param3 : LPCWSTR -> "wstr"
; param4 : INT -> "int"

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

var (
	odbcbcp = windows.NewLazySystemDLL("odbcbcp.dll")
	procbcp_initW = odbcbcp.NewProc("bcp_initW")
)

// param0 (void* in/out), param1 (LPCWSTR), param2 (LPCWSTR), param3 (LPCWSTR), param4 (INT)
r1, _, err := procbcp_initW.Call(
	uintptr(param0),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(param1))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(param2))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(param3))),
	uintptr(param4),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function bcp_initW(
  param0: Pointer;   // void* in/out
  param1: PWideChar;   // LPCWSTR
  param2: PWideChar;   // LPCWSTR
  param3: PWideChar;   // LPCWSTR
  param4: Integer   // INT
): Smallint; stdcall;
  external 'odbcbcp.dll' name 'bcp_initW';

result := DllCall("odbcbcp\bcp_initW"
    , "Ptr", param0   ; void* in/out
    , "WStr", param1   ; LPCWSTR
    , "WStr", param2   ; LPCWSTR
    , "WStr", param3   ; LPCWSTR
    , "Int", param4   ; INT
    , "Short")   ; return: SHORT

●bcp_initW(param0, param1, param2, param3, param4) = DLL("odbcbcp.dll", "int bcp_initW(void*, char*, char*, char*, int)")
# 呼び出し: bcp_initW(param0, param1, param2, param3, param4)
# param0 : void* in/out -> "void*"
# param1 : LPCWSTR -> "char*"
# param2 : LPCWSTR -> "char*"
# param3 : LPCWSTR -> "char*"
# param4 : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。

const std = @import("std");

extern "odbcbcp" fn bcp_initW(
    param0: ?*anyopaque, // void* in/out
    param1: [*c]const u16, // LPCWSTR
    param2: [*c]const u16, // LPCWSTR
    param3: [*c]const u16, // LPCWSTR
    param4: i32 // INT
) callconv(std.os.windows.WINAPI) i16;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc bcp_initW(
    param0: pointer,  # void* in/out
    param1: WideCString,  # LPCWSTR
    param2: WideCString,  # LPCWSTR
    param3: WideCString,  # LPCWSTR
    param4: int32  # INT
): int16 {.importc: "bcp_initW", stdcall, dynlib: "odbcbcp.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "odbcbcp");
extern(Windows)
short bcp_initW(
    void* param0,   // void* in/out
    const(wchar)* param1,   // LPCWSTR
    const(wchar)* param2,   // LPCWSTR
    const(wchar)* param3,   // LPCWSTR
    int param4   // INT
);

ccall((:bcp_initW, "odbcbcp.dll"), stdcall, Int16,
      (Ptr{Cvoid}, Cwstring, Cwstring, Cwstring, Int32),
      param0, param1, param2, param3, param4)
# param0 : void* in/out -> Ptr{Cvoid}
# param1 : LPCWSTR -> Cwstring
# param2 : LPCWSTR -> Cwstring
# param3 : LPCWSTR -> Cwstring
# param4 : INT -> Int32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
int16_t bcp_initW(
    void* param0,
    const uint16_t* param1,
    const uint16_t* param2,
    const uint16_t* param3,
    int32_t param4);
]]
local odbcbcp = ffi.load("odbcbcp")
-- odbcbcp.bcp_initW(param0, param1, param2, param3, param4)
-- param0 : void* in/out
-- param1 : LPCWSTR
-- param2 : LPCWSTR
-- param3 : LPCWSTR
-- param4 : 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('odbcbcp.dll');
const bcp_initW = lib.func('__stdcall', 'bcp_initW', 'int16_t', ['void *', 'str16', 'str16', 'str16', 'int32_t']);
// bcp_initW(param0, param1, param2, param3, param4)
// param0 : void* in/out -> 'void *'
// param1 : LPCWSTR -> 'str16'
// param2 : LPCWSTR -> 'str16'
// param3 : LPCWSTR -> 'str16'
// param4 : 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("odbcbcp.dll", {
  bcp_initW: { parameters: ["pointer", "buffer", "buffer", "buffer", "i32"], result: "i16" },
});
// lib.symbols.bcp_initW(param0, param1, param2, param3, param4)
// param0 : void* in/out -> "pointer"
// param1 : LPCWSTR -> "buffer"
// param2 : LPCWSTR -> "buffer"
// param3 : LPCWSTR -> "buffer"
// param4 : INT -> "i32"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int16_t bcp_initW(
    void* param0,
    const uint16_t* param1,
    const uint16_t* param2,
    const uint16_t* param3,
    int32_t param4);
C, "odbcbcp.dll");
// $ffi->bcp_initW(param0, param1, param2, param3, param4);
// param0 : void* in/out
// param1 : LPCWSTR
// param2 : LPCWSTR
// param3 : LPCWSTR
// param4 : 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。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

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

public interface Odbcbcp extends StdCallLibrary {
    Odbcbcp INSTANCE = Native.load("odbcbcp", Odbcbcp.class, W32APIOptions.UNICODE_OPTIONS);
    short bcp_initW(
        Pointer param0,   // void* in/out
        WString param1,   // LPCWSTR
        WString param2,   // LPCWSTR
        WString param3,   // LPCWSTR
        int param4   // INT
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("odbcbcp")]
lib Libodbcbcp
  fun bcp_initW = bcp_initW(
    param0 : Void*,   # void* in/out
    param1 : UInt16*,   # LPCWSTR
    param2 : UInt16*,   # LPCWSTR
    param3 : UInt16*,   # LPCWSTR
    param4 : Int32   # INT
  ) : Int16
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

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

typedef bcp_initWNative = Int16 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, Int32);
typedef bcp_initWDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>, int);
final bcp_initW = DynamicLibrary.open('odbcbcp.dll')
    .lookupFunction<bcp_initWNative, bcp_initWDart>('bcp_initW');
// param0 : void* in/out -> Pointer<Void>
// param1 : LPCWSTR -> Pointer<Utf16>
// param2 : LPCWSTR -> Pointer<Utf16>
// param3 : LPCWSTR -> Pointer<Utf16>
// param4 : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function bcp_initW(
  param0: Pointer;   // void* in/out
  param1: PWideChar;   // LPCWSTR
  param2: PWideChar;   // LPCWSTR
  param3: PWideChar;   // LPCWSTR
  param4: Integer   // INT
): Smallint; stdcall;
  external 'odbcbcp.dll' name 'bcp_initW';

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

foreign import stdcall safe "bcp_initW"
  c_bcp_initW :: Ptr () -> CWString -> CWString -> CWString -> Int32 -> IO Int16
-- param0 : void* in/out -> Ptr ()
-- param1 : LPCWSTR -> CWString
-- param2 : LPCWSTR -> CWString
-- param3 : LPCWSTR -> CWString
-- param4 : 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 bcp_initw =
  foreign "bcp_initW"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> int32_t @-> returning int16_t)
(* param0 : void* in/out -> (ptr void) *)
(* param1 : LPCWSTR -> (ptr uint16_t) *)
(* param2 : LPCWSTR -> (ptr uint16_t) *)
(* param3 : LPCWSTR -> (ptr uint16_t) *)
(* param4 : 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 odbcbcp (t "odbcbcp.dll"))
(cffi:use-foreign-library odbcbcp)

(cffi:defcfun ("bcp_initW" bcp-init-w :convention :stdcall) :int16
  (param0 :pointer)   ; void* in/out
  (param1 (:string :encoding :utf-16le))   ; LPCWSTR
  (param2 (:string :encoding :utf-16le))   ; LPCWSTR
  (param3 (:string :encoding :utf-16le))   ; LPCWSTR
  (param4 :int32))   ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $bcp_initW = Win32::API::More->new('odbcbcp',
    'short bcp_initW(LPVOID param0, LPCWSTR param1, LPCWSTR param2, LPCWSTR param3, int param4)');
# my $ret = $bcp_initW->Call($param0, $param1, $param2, $param3, $param4);
# param0 : void* in/out -> LPVOID
# param1 : LPCWSTR -> LPCWSTR
# param2 : LPCWSTR -> LPCWSTR
# param3 : LPCWSTR -> LPCWSTR
# param4 : INT -> int
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。