UnpackDDElParam

// USER32.dll
#include <windows.h>

BOOL UnpackDDElParam(
    DWORD msg,
    LPARAM lParam,
    UINT_PTR* puiLo,
    UINT_PTR* puiHi
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function UnpackDDElParam(
    msg As UInteger,   ' DWORD
    lParam As IntPtr,   ' LPARAM
    <Out> ByRef puiLo As UIntPtr,   ' UINT_PTR* out
    <Out> ByRef puiHi As UIntPtr   ' UINT_PTR* out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' msg : DWORD
' lParam : LPARAM
' puiLo : UINT_PTR* out
' puiHi : UINT_PTR* out
Declare PtrSafe Function UnpackDDElParam Lib "user32" ( _
    ByVal msg As Long, _
    ByVal lParam As LongPtr, _
    ByRef puiLo As LongPtr, _
    ByRef puiHi As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

UnpackDDElParam = ctypes.windll.user32.UnpackDDElParam
UnpackDDElParam.restype = wintypes.BOOL
UnpackDDElParam.argtypes = [
    wintypes.DWORD,  # msg : DWORD
    ctypes.c_ssize_t,  # lParam : LPARAM
    ctypes.POINTER(ctypes.c_size_t),  # puiLo : UINT_PTR* out
    ctypes.POINTER(ctypes.c_size_t),  # puiHi : UINT_PTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
UnpackDDElParam = Fiddle::Function.new(
  lib['UnpackDDElParam'],
  [
    -Fiddle::TYPE_INT,  # msg : DWORD
    Fiddle::TYPE_INTPTR_T,  # lParam : LPARAM
    Fiddle::TYPE_VOIDP,  # puiLo : UINT_PTR* out
    Fiddle::TYPE_VOIDP,  # puiHi : UINT_PTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn UnpackDDElParam(
        msg: u32,  // DWORD
        lParam: isize,  // LPARAM
        puiLo: *mut usize,  // UINT_PTR* out
        puiHi: *mut usize  // UINT_PTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll")]
public static extern bool UnpackDDElParam(uint msg, IntPtr lParam, out UIntPtr puiLo, out UIntPtr puiHi);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_UnpackDDElParam' -Namespace Win32 -PassThru
# $api::UnpackDDElParam(msg, lParam, puiLo, puiHi)

#uselib "USER32.dll"
#func global UnpackDDElParam "UnpackDDElParam" sptr, sptr, sptr, sptr
; UnpackDDElParam msg, lParam, varptr(puiLo), varptr(puiHi)   ; 戻り値は stat
; msg : DWORD -> "sptr"
; lParam : LPARAM -> "sptr"
; puiLo : UINT_PTR* out -> "sptr"
; puiHi : UINT_PTR* out -> "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 (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procUnpackDDElParam = user32.NewProc("UnpackDDElParam")
)

// msg (DWORD), lParam (LPARAM), puiLo (UINT_PTR* out), puiHi (UINT_PTR* out)
r1, _, err := procUnpackDDElParam.Call(
	uintptr(msg),
	uintptr(lParam),
	uintptr(puiLo),
	uintptr(puiHi),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function UnpackDDElParam(
  msg: DWORD;   // DWORD
  lParam: NativeInt;   // LPARAM
  puiLo: Pointer;   // UINT_PTR* out
  puiHi: Pointer   // UINT_PTR* out
): BOOL; stdcall;
  external 'USER32.dll' name 'UnpackDDElParam';

result := DllCall("USER32\UnpackDDElParam"
    , "UInt", msg   ; DWORD
    , "Ptr", lParam   ; LPARAM
    , "Ptr", puiLo   ; UINT_PTR* out
    , "Ptr", puiHi   ; UINT_PTR* out
    , "Int")   ; return: BOOL

●UnpackDDElParam(msg, lParam, puiLo, puiHi) = DLL("USER32.dll", "bool UnpackDDElParam(dword, int, void*, void*)")
# 呼び出し: UnpackDDElParam(msg, lParam, puiLo, puiHi)
# msg : DWORD -> "dword"
# lParam : LPARAM -> "int"
# puiLo : UINT_PTR* out -> "void*"
# puiHi : UINT_PTR* out -> "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)。

const std = @import("std");

extern "user32" fn UnpackDDElParam(
    msg: u32, // DWORD
    lParam: isize, // LPARAM
    puiLo: [*c]usize, // UINT_PTR* out
    puiHi: [*c]usize // UINT_PTR* out
) callconv(std.os.windows.WINAPI) i32;

proc UnpackDDElParam(
    msg: uint32,  # DWORD
    lParam: int,  # LPARAM
    puiLo: ptr uint,  # UINT_PTR* out
    puiHi: ptr uint  # UINT_PTR* out
): int32 {.importc: "UnpackDDElParam", stdcall, dynlib: "USER32.dll".}

pragma(lib, "user32");
extern(Windows)
int UnpackDDElParam(
    uint msg,   // DWORD
    ptrdiff_t lParam,   // LPARAM
    size_t* puiLo,   // UINT_PTR* out
    size_t* puiHi   // UINT_PTR* out
);

ccall((:UnpackDDElParam, "USER32.dll"), stdcall, Int32,
      (UInt32, Int, Ptr{Csize_t}, Ptr{Csize_t}),
      msg, lParam, puiLo, puiHi)
# msg : DWORD -> UInt32
# lParam : LPARAM -> Int
# puiLo : UINT_PTR* out -> Ptr{Csize_t}
# puiHi : UINT_PTR* out -> Ptr{Csize_t}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t UnpackDDElParam(
    uint32_t msg,
    intptr_t lParam,
    uintptr_t* puiLo,
    uintptr_t* puiHi);
]]
local user32 = ffi.load("user32")
-- user32.UnpackDDElParam(msg, lParam, puiLo, puiHi)
-- msg : DWORD
-- lParam : LPARAM
-- puiLo : UINT_PTR* out
-- puiHi : UINT_PTR* out
-- 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('USER32.dll');
const UnpackDDElParam = lib.func('__stdcall', 'UnpackDDElParam', 'int32_t', ['uint32_t', 'intptr_t', 'uintptr_t *', 'uintptr_t *']);
// UnpackDDElParam(msg, lParam, puiLo, puiHi)
// msg : DWORD -> 'uint32_t'
// lParam : LPARAM -> 'intptr_t'
// puiLo : UINT_PTR* out -> 'uintptr_t *'
// puiHi : UINT_PTR* out -> 'uintptr_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("USER32.dll", {
  UnpackDDElParam: { parameters: ["u32", "isize", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.UnpackDDElParam(msg, lParam, puiLo, puiHi)
// msg : DWORD -> "u32"
// lParam : LPARAM -> "isize"
// puiLo : UINT_PTR* out -> "pointer"
// puiHi : UINT_PTR* out -> "pointer"
// 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 UnpackDDElParam(
    uint32_t msg,
    intptr_t lParam,
    size_t* puiLo,
    size_t* puiHi);
C, "USER32.dll");
// $ffi->UnpackDDElParam(msg, lParam, puiLo, puiHi);
// msg : DWORD
// lParam : LPARAM
// puiLo : UINT_PTR* out
// puiHi : UINT_PTR* out
// 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 User32 extends StdCallLibrary {
    User32 INSTANCE = Native.load("user32", User32.class);
    boolean UnpackDDElParam(
        int msg,   // DWORD
        long lParam,   // LPARAM
        LongByReference puiLo,   // UINT_PTR* out
        LongByReference puiHi   // UINT_PTR* out
    );
}

@[Link("user32")]
lib LibUSER32
  fun UnpackDDElParam = UnpackDDElParam(
    msg : UInt32,   # DWORD
    lParam : LibC::SSizeT,   # LPARAM
    puiLo : LibC::SizeT*,   # UINT_PTR* out
    puiHi : LibC::SizeT*   # UINT_PTR* out
  ) : 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 UnpackDDElParamNative = Int32 Function(Uint32, IntPtr, Pointer<UintPtr>, Pointer<UintPtr>);
typedef UnpackDDElParamDart = int Function(int, int, Pointer<UintPtr>, Pointer<UintPtr>);
final UnpackDDElParam = DynamicLibrary.open('USER32.dll')
    .lookupFunction<UnpackDDElParamNative, UnpackDDElParamDart>('UnpackDDElParam');
// msg : DWORD -> Uint32
// lParam : LPARAM -> IntPtr
// puiLo : UINT_PTR* out -> Pointer<UintPtr>
// puiHi : UINT_PTR* out -> Pointer<UintPtr>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function UnpackDDElParam(
  msg: DWORD;   // DWORD
  lParam: NativeInt;   // LPARAM
  puiLo: Pointer;   // UINT_PTR* out
  puiHi: Pointer   // UINT_PTR* out
): BOOL; stdcall;
  external 'USER32.dll' name 'UnpackDDElParam';

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

foreign import stdcall safe "UnpackDDElParam"
  c_UnpackDDElParam :: Word32 -> CIntPtr -> Ptr CUIntPtr -> Ptr CUIntPtr -> IO CInt
-- msg : DWORD -> Word32
-- lParam : LPARAM -> CIntPtr
-- puiLo : UINT_PTR* out -> Ptr CUIntPtr
-- puiHi : UINT_PTR* out -> Ptr CUIntPtr
-- 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 unpackddelparam =
  foreign "UnpackDDElParam"
    (uint32_t @-> intptr_t @-> (ptr size_t) @-> (ptr size_t) @-> returning int32_t)
(* msg : DWORD -> uint32_t *)
(* lParam : LPARAM -> intptr_t *)
(* puiLo : UINT_PTR* out -> (ptr size_t) *)
(* puiHi : UINT_PTR* out -> (ptr size_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 user32 (t "USER32.dll"))
(cffi:use-foreign-library user32)

(cffi:defcfun ("UnpackDDElParam" unpack-ddel-param :convention :stdcall) :int32
  (msg :uint32)   ; DWORD
  (l-param :int64)   ; LPARAM
  (pui-lo :pointer)   ; UINT_PTR* out
  (pui-hi :pointer))   ; UINT_PTR* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $UnpackDDElParam = Win32::API::More->new('USER32',
    'BOOL UnpackDDElParam(DWORD msg, LPARAM lParam, LPVOID puiLo, LPVOID puiHi)');
# my $ret = $UnpackDDElParam->Call($msg, $lParam, $puiLo, $puiHi);
# msg : DWORD -> DWORD
# lParam : LPARAM -> LPARAM
# puiLo : UINT_PTR* out -> LPVOID
# puiHi : UINT_PTR* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。