lineOpenW

// TAPI32.dll  (Unicode / -W)
#include <windows.h>

INT lineOpenW(
    DWORD hLineApp,
    DWORD dwDeviceID,
    DWORD* lphLine,
    DWORD dwAPIVersion,
    DWORD dwExtVersion,
    UINT_PTR dwCallbackInstance,
    DWORD dwPrivileges,
    DWORD dwMediaModes,
    const LINECALLPARAMS* lpCallParams
);

<DllImport("TAPI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function lineOpenW(
    hLineApp As UInteger,   ' DWORD
    dwDeviceID As UInteger,   ' DWORD
    ByRef lphLine As UInteger,   ' DWORD* in/out
    dwAPIVersion As UInteger,   ' DWORD
    dwExtVersion As UInteger,   ' DWORD
    dwCallbackInstance As UIntPtr,   ' UINT_PTR
    dwPrivileges As UInteger,   ' DWORD
    dwMediaModes As UInteger,   ' DWORD
    lpCallParams As IntPtr   ' LINECALLPARAMS*
) As Integer
End Function

' hLineApp : DWORD
' dwDeviceID : DWORD
' lphLine : DWORD* in/out
' dwAPIVersion : DWORD
' dwExtVersion : DWORD
' dwCallbackInstance : UINT_PTR
' dwPrivileges : DWORD
' dwMediaModes : DWORD
' lpCallParams : LINECALLPARAMS*
Declare PtrSafe Function lineOpenW Lib "tapi32" ( _
    ByVal hLineApp As Long, _
    ByVal dwDeviceID As Long, _
    ByRef lphLine As Long, _
    ByVal dwAPIVersion As Long, _
    ByVal dwExtVersion As Long, _
    ByVal dwCallbackInstance As LongPtr, _
    ByVal dwPrivileges As Long, _
    ByVal dwMediaModes As Long, _
    ByVal lpCallParams As LongPtr) As Long
' 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

lineOpenW = ctypes.windll.tapi32.lineOpenW
lineOpenW.restype = ctypes.c_int
lineOpenW.argtypes = [
    wintypes.DWORD,  # hLineApp : DWORD
    wintypes.DWORD,  # dwDeviceID : DWORD
    ctypes.POINTER(wintypes.DWORD),  # lphLine : DWORD* in/out
    wintypes.DWORD,  # dwAPIVersion : DWORD
    wintypes.DWORD,  # dwExtVersion : DWORD
    ctypes.c_size_t,  # dwCallbackInstance : UINT_PTR
    wintypes.DWORD,  # dwPrivileges : DWORD
    wintypes.DWORD,  # dwMediaModes : DWORD
    ctypes.c_void_p,  # lpCallParams : LINECALLPARAMS*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('TAPI32.dll')
lineOpenW = Fiddle::Function.new(
  lib['lineOpenW'],
  [
    -Fiddle::TYPE_INT,  # hLineApp : DWORD
    -Fiddle::TYPE_INT,  # dwDeviceID : DWORD
    Fiddle::TYPE_VOIDP,  # lphLine : DWORD* in/out
    -Fiddle::TYPE_INT,  # dwAPIVersion : DWORD
    -Fiddle::TYPE_INT,  # dwExtVersion : DWORD
    Fiddle::TYPE_UINTPTR_T,  # dwCallbackInstance : UINT_PTR
    -Fiddle::TYPE_INT,  # dwPrivileges : DWORD
    -Fiddle::TYPE_INT,  # dwMediaModes : DWORD
    Fiddle::TYPE_VOIDP,  # lpCallParams : LINECALLPARAMS*
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "tapi32")]
extern "system" {
    fn lineOpenW(
        hLineApp: u32,  // DWORD
        dwDeviceID: u32,  // DWORD
        lphLine: *mut u32,  // DWORD* in/out
        dwAPIVersion: u32,  // DWORD
        dwExtVersion: u32,  // DWORD
        dwCallbackInstance: usize,  // UINT_PTR
        dwPrivileges: u32,  // DWORD
        dwMediaModes: u32,  // DWORD
        lpCallParams: *const LINECALLPARAMS  // LINECALLPARAMS*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("TAPI32.dll", CharSet = CharSet.Unicode)]
public static extern int lineOpenW(uint hLineApp, uint dwDeviceID, ref uint lphLine, uint dwAPIVersion, uint dwExtVersion, UIntPtr dwCallbackInstance, uint dwPrivileges, uint dwMediaModes, IntPtr lpCallParams);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TAPI32_lineOpenW' -Namespace Win32 -PassThru
# $api::lineOpenW(hLineApp, dwDeviceID, lphLine, dwAPIVersion, dwExtVersion, dwCallbackInstance, dwPrivileges, dwMediaModes, lpCallParams)

#uselib "TAPI32.dll"
#func global lineOpenW "lineOpenW" wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr
; lineOpenW hLineApp, dwDeviceID, varptr(lphLine), dwAPIVersion, dwExtVersion, dwCallbackInstance, dwPrivileges, dwMediaModes, varptr(lpCallParams)   ; 戻り値は stat
; hLineApp : DWORD -> "wptr"
; dwDeviceID : DWORD -> "wptr"
; lphLine : DWORD* in/out -> "wptr"
; dwAPIVersion : DWORD -> "wptr"
; dwExtVersion : DWORD -> "wptr"
; dwCallbackInstance : UINT_PTR -> "wptr"
; dwPrivileges : DWORD -> "wptr"
; dwMediaModes : DWORD -> "wptr"
; lpCallParams : LINECALLPARAMS* -> "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。

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

var (
	tapi32 = windows.NewLazySystemDLL("TAPI32.dll")
	proclineOpenW = tapi32.NewProc("lineOpenW")
)

// hLineApp (DWORD), dwDeviceID (DWORD), lphLine (DWORD* in/out), dwAPIVersion (DWORD), dwExtVersion (DWORD), dwCallbackInstance (UINT_PTR), dwPrivileges (DWORD), dwMediaModes (DWORD), lpCallParams (LINECALLPARAMS*)
r1, _, err := proclineOpenW.Call(
	uintptr(hLineApp),
	uintptr(dwDeviceID),
	uintptr(lphLine),
	uintptr(dwAPIVersion),
	uintptr(dwExtVersion),
	uintptr(dwCallbackInstance),
	uintptr(dwPrivileges),
	uintptr(dwMediaModes),
	uintptr(lpCallParams),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function lineOpenW(
  hLineApp: DWORD;   // DWORD
  dwDeviceID: DWORD;   // DWORD
  lphLine: Pointer;   // DWORD* in/out
  dwAPIVersion: DWORD;   // DWORD
  dwExtVersion: DWORD;   // DWORD
  dwCallbackInstance: NativeUInt;   // UINT_PTR
  dwPrivileges: DWORD;   // DWORD
  dwMediaModes: DWORD;   // DWORD
  lpCallParams: Pointer   // LINECALLPARAMS*
): Integer; stdcall;
  external 'TAPI32.dll' name 'lineOpenW';

result := DllCall("TAPI32\lineOpenW"
    , "UInt", hLineApp   ; DWORD
    , "UInt", dwDeviceID   ; DWORD
    , "Ptr", lphLine   ; DWORD* in/out
    , "UInt", dwAPIVersion   ; DWORD
    , "UInt", dwExtVersion   ; DWORD
    , "UPtr", dwCallbackInstance   ; UINT_PTR
    , "UInt", dwPrivileges   ; DWORD
    , "UInt", dwMediaModes   ; DWORD
    , "Ptr", lpCallParams   ; LINECALLPARAMS*
    , "Int")   ; return: INT

●lineOpenW(hLineApp, dwDeviceID, lphLine, dwAPIVersion, dwExtVersion, dwCallbackInstance, dwPrivileges, dwMediaModes, lpCallParams) = DLL("TAPI32.dll", "int lineOpenW(dword, dword, void*, dword, dword, int, dword, dword, void*)")
# 呼び出し: lineOpenW(hLineApp, dwDeviceID, lphLine, dwAPIVersion, dwExtVersion, dwCallbackInstance, dwPrivileges, dwMediaModes, lpCallParams)
# hLineApp : DWORD -> "dword"
# dwDeviceID : DWORD -> "dword"
# lphLine : DWORD* in/out -> "void*"
# dwAPIVersion : DWORD -> "dword"
# dwExtVersion : DWORD -> "dword"
# dwCallbackInstance : UINT_PTR -> "int"
# dwPrivileges : DWORD -> "dword"
# dwMediaModes : DWORD -> "dword"
# lpCallParams : LINECALLPARAMS* -> "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)。
# ※-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 "tapi32" fn lineOpenW(
    hLineApp: u32, // DWORD
    dwDeviceID: u32, // DWORD
    lphLine: [*c]u32, // DWORD* in/out
    dwAPIVersion: u32, // DWORD
    dwExtVersion: u32, // DWORD
    dwCallbackInstance: usize, // UINT_PTR
    dwPrivileges: u32, // DWORD
    dwMediaModes: u32, // DWORD
    lpCallParams: [*c]LINECALLPARAMS // LINECALLPARAMS*
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc lineOpenW(
    hLineApp: uint32,  # DWORD
    dwDeviceID: uint32,  # DWORD
    lphLine: ptr uint32,  # DWORD* in/out
    dwAPIVersion: uint32,  # DWORD
    dwExtVersion: uint32,  # DWORD
    dwCallbackInstance: uint,  # UINT_PTR
    dwPrivileges: uint32,  # DWORD
    dwMediaModes: uint32,  # DWORD
    lpCallParams: ptr LINECALLPARAMS  # LINECALLPARAMS*
): int32 {.importc: "lineOpenW", stdcall, dynlib: "TAPI32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "tapi32");
extern(Windows)
int lineOpenW(
    uint hLineApp,   // DWORD
    uint dwDeviceID,   // DWORD
    uint* lphLine,   // DWORD* in/out
    uint dwAPIVersion,   // DWORD
    uint dwExtVersion,   // DWORD
    size_t dwCallbackInstance,   // UINT_PTR
    uint dwPrivileges,   // DWORD
    uint dwMediaModes,   // DWORD
    LINECALLPARAMS* lpCallParams   // LINECALLPARAMS*
);

ccall((:lineOpenW, "TAPI32.dll"), stdcall, Int32,
      (UInt32, UInt32, Ptr{UInt32}, UInt32, UInt32, Csize_t, UInt32, UInt32, Ptr{LINECALLPARAMS}),
      hLineApp, dwDeviceID, lphLine, dwAPIVersion, dwExtVersion, dwCallbackInstance, dwPrivileges, dwMediaModes, lpCallParams)
# hLineApp : DWORD -> UInt32
# dwDeviceID : DWORD -> UInt32
# lphLine : DWORD* in/out -> Ptr{UInt32}
# dwAPIVersion : DWORD -> UInt32
# dwExtVersion : DWORD -> UInt32
# dwCallbackInstance : UINT_PTR -> Csize_t
# dwPrivileges : DWORD -> UInt32
# dwMediaModes : DWORD -> UInt32
# lpCallParams : LINECALLPARAMS* -> Ptr{LINECALLPARAMS}
# 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[[
int32_t lineOpenW(
    uint32_t hLineApp,
    uint32_t dwDeviceID,
    uint32_t* lphLine,
    uint32_t dwAPIVersion,
    uint32_t dwExtVersion,
    uintptr_t dwCallbackInstance,
    uint32_t dwPrivileges,
    uint32_t dwMediaModes,
    void* lpCallParams);
]]
local tapi32 = ffi.load("tapi32")
-- tapi32.lineOpenW(hLineApp, dwDeviceID, lphLine, dwAPIVersion, dwExtVersion, dwCallbackInstance, dwPrivileges, dwMediaModes, lpCallParams)
-- hLineApp : DWORD
-- dwDeviceID : DWORD
-- lphLine : DWORD* in/out
-- dwAPIVersion : DWORD
-- dwExtVersion : DWORD
-- dwCallbackInstance : UINT_PTR
-- dwPrivileges : DWORD
-- dwMediaModes : DWORD
-- lpCallParams : LINECALLPARAMS*
-- 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('TAPI32.dll');
const lineOpenW = lib.func('__stdcall', 'lineOpenW', 'int32_t', ['uint32_t', 'uint32_t', 'uint32_t *', 'uint32_t', 'uint32_t', 'uintptr_t', 'uint32_t', 'uint32_t', 'void *']);
// lineOpenW(hLineApp, dwDeviceID, lphLine, dwAPIVersion, dwExtVersion, dwCallbackInstance, dwPrivileges, dwMediaModes, lpCallParams)
// hLineApp : DWORD -> 'uint32_t'
// dwDeviceID : DWORD -> 'uint32_t'
// lphLine : DWORD* in/out -> 'uint32_t *'
// dwAPIVersion : DWORD -> 'uint32_t'
// dwExtVersion : DWORD -> 'uint32_t'
// dwCallbackInstance : UINT_PTR -> 'uintptr_t'
// dwPrivileges : DWORD -> 'uint32_t'
// dwMediaModes : DWORD -> 'uint32_t'
// lpCallParams : LINECALLPARAMS* -> 'void *'
// 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("TAPI32.dll", {
  lineOpenW: { parameters: ["u32", "u32", "pointer", "u32", "u32", "usize", "u32", "u32", "pointer"], result: "i32" },
});
// lib.symbols.lineOpenW(hLineApp, dwDeviceID, lphLine, dwAPIVersion, dwExtVersion, dwCallbackInstance, dwPrivileges, dwMediaModes, lpCallParams)
// hLineApp : DWORD -> "u32"
// dwDeviceID : DWORD -> "u32"
// lphLine : DWORD* in/out -> "pointer"
// dwAPIVersion : DWORD -> "u32"
// dwExtVersion : DWORD -> "u32"
// dwCallbackInstance : UINT_PTR -> "usize"
// dwPrivileges : DWORD -> "u32"
// dwMediaModes : DWORD -> "u32"
// lpCallParams : LINECALLPARAMS* -> "pointer"
// 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
int32_t lineOpenW(
    uint32_t hLineApp,
    uint32_t dwDeviceID,
    uint32_t* lphLine,
    uint32_t dwAPIVersion,
    uint32_t dwExtVersion,
    size_t dwCallbackInstance,
    uint32_t dwPrivileges,
    uint32_t dwMediaModes,
    void* lpCallParams);
C, "TAPI32.dll");
// $ffi->lineOpenW(hLineApp, dwDeviceID, lphLine, dwAPIVersion, dwExtVersion, dwCallbackInstance, dwPrivileges, dwMediaModes, lpCallParams);
// hLineApp : DWORD
// dwDeviceID : DWORD
// lphLine : DWORD* in/out
// dwAPIVersion : DWORD
// dwExtVersion : DWORD
// dwCallbackInstance : UINT_PTR
// dwPrivileges : DWORD
// dwMediaModes : DWORD
// lpCallParams : LINECALLPARAMS*
// 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 Tapi32 extends StdCallLibrary {
    Tapi32 INSTANCE = Native.load("tapi32", Tapi32.class, W32APIOptions.UNICODE_OPTIONS);
    int lineOpenW(
        int hLineApp,   // DWORD
        int dwDeviceID,   // DWORD
        IntByReference lphLine,   // DWORD* in/out
        int dwAPIVersion,   // DWORD
        int dwExtVersion,   // DWORD
        long dwCallbackInstance,   // UINT_PTR
        int dwPrivileges,   // DWORD
        int dwMediaModes,   // DWORD
        Pointer lpCallParams   // LINECALLPARAMS*
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("tapi32")]
lib LibTAPI32
  fun lineOpenW = lineOpenW(
    hLineApp : UInt32,   # DWORD
    dwDeviceID : UInt32,   # DWORD
    lphLine : UInt32*,   # DWORD* in/out
    dwAPIVersion : UInt32,   # DWORD
    dwExtVersion : UInt32,   # DWORD
    dwCallbackInstance : LibC::SizeT,   # UINT_PTR
    dwPrivileges : UInt32,   # DWORD
    dwMediaModes : UInt32,   # DWORD
    lpCallParams : LINECALLPARAMS*   # LINECALLPARAMS*
  ) : Int32
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 lineOpenWNative = Int32 Function(Uint32, Uint32, Pointer<Uint32>, Uint32, Uint32, UintPtr, Uint32, Uint32, Pointer<Void>);
typedef lineOpenWDart = int Function(int, int, Pointer<Uint32>, int, int, int, int, int, Pointer<Void>);
final lineOpenW = DynamicLibrary.open('TAPI32.dll')
    .lookupFunction<lineOpenWNative, lineOpenWDart>('lineOpenW');
// hLineApp : DWORD -> Uint32
// dwDeviceID : DWORD -> Uint32
// lphLine : DWORD* in/out -> Pointer<Uint32>
// dwAPIVersion : DWORD -> Uint32
// dwExtVersion : DWORD -> Uint32
// dwCallbackInstance : UINT_PTR -> UintPtr
// dwPrivileges : DWORD -> Uint32
// dwMediaModes : DWORD -> Uint32
// lpCallParams : LINECALLPARAMS* -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function lineOpenW(
  hLineApp: DWORD;   // DWORD
  dwDeviceID: DWORD;   // DWORD
  lphLine: Pointer;   // DWORD* in/out
  dwAPIVersion: DWORD;   // DWORD
  dwExtVersion: DWORD;   // DWORD
  dwCallbackInstance: NativeUInt;   // UINT_PTR
  dwPrivileges: DWORD;   // DWORD
  dwMediaModes: DWORD;   // DWORD
  lpCallParams: Pointer   // LINECALLPARAMS*
): Integer; stdcall;
  external 'TAPI32.dll' name 'lineOpenW';

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

foreign import stdcall safe "lineOpenW"
  c_lineOpenW :: Word32 -> Word32 -> Ptr Word32 -> Word32 -> Word32 -> CUIntPtr -> Word32 -> Word32 -> Ptr () -> IO Int32
-- hLineApp : DWORD -> Word32
-- dwDeviceID : DWORD -> Word32
-- lphLine : DWORD* in/out -> Ptr Word32
-- dwAPIVersion : DWORD -> Word32
-- dwExtVersion : DWORD -> Word32
-- dwCallbackInstance : UINT_PTR -> CUIntPtr
-- dwPrivileges : DWORD -> Word32
-- dwMediaModes : DWORD -> Word32
-- lpCallParams : LINECALLPARAMS* -> Ptr ()
-- 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 lineopenw =
  foreign "lineOpenW"
    (uint32_t @-> uint32_t @-> (ptr uint32_t) @-> uint32_t @-> uint32_t @-> size_t @-> uint32_t @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* hLineApp : DWORD -> uint32_t *)
(* dwDeviceID : DWORD -> uint32_t *)
(* lphLine : DWORD* in/out -> (ptr uint32_t) *)
(* dwAPIVersion : DWORD -> uint32_t *)
(* dwExtVersion : DWORD -> uint32_t *)
(* dwCallbackInstance : UINT_PTR -> size_t *)
(* dwPrivileges : DWORD -> uint32_t *)
(* dwMediaModes : DWORD -> uint32_t *)
(* lpCallParams : LINECALLPARAMS* -> (ptr void) *)
(* 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 tapi32 (t "TAPI32.dll"))
(cffi:use-foreign-library tapi32)

(cffi:defcfun ("lineOpenW" line-open-w :convention :stdcall) :int32
  (h-line-app :uint32)   ; DWORD
  (dw-device-id :uint32)   ; DWORD
  (lph-line :pointer)   ; DWORD* in/out
  (dw-apiversion :uint32)   ; DWORD
  (dw-ext-version :uint32)   ; DWORD
  (dw-callback-instance :uint64)   ; UINT_PTR
  (dw-privileges :uint32)   ; DWORD
  (dw-media-modes :uint32)   ; DWORD
  (lp-call-params :pointer))   ; LINECALLPARAMS*
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $lineOpenW = Win32::API::More->new('TAPI32',
    'int lineOpenW(DWORD hLineApp, DWORD dwDeviceID, LPVOID lphLine, DWORD dwAPIVersion, DWORD dwExtVersion, WPARAM dwCallbackInstance, DWORD dwPrivileges, DWORD dwMediaModes, LPVOID lpCallParams)');
# my $ret = $lineOpenW->Call($hLineApp, $dwDeviceID, $lphLine, $dwAPIVersion, $dwExtVersion, $dwCallbackInstance, $dwPrivileges, $dwMediaModes, $lpCallParams);
# hLineApp : DWORD -> DWORD
# dwDeviceID : DWORD -> DWORD
# lphLine : DWORD* in/out -> LPVOID
# dwAPIVersion : DWORD -> DWORD
# dwExtVersion : DWORD -> DWORD
# dwCallbackInstance : UINT_PTR -> WPARAM
# dwPrivileges : DWORD -> DWORD
# dwMediaModes : DWORD -> DWORD
# lpCallParams : LINECALLPARAMS* -> LPVOID
# 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。