PackDDElParam

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

LPARAM PackDDElParam(
    DWORD msg,
    UINT_PTR uiLo,
    UINT_PTR uiHi
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function PackDDElParam(
    msg As UInteger,   ' DWORD
    uiLo As UIntPtr,   ' UINT_PTR
    uiHi As UIntPtr   ' UINT_PTR
) As IntPtr
End Function

' msg : DWORD
' uiLo : UINT_PTR
' uiHi : UINT_PTR
Declare PtrSafe Function PackDDElParam Lib "user32" ( _
    ByVal msg As Long, _
    ByVal uiLo As LongPtr, _
    ByVal uiHi As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PackDDElParam = ctypes.windll.user32.PackDDElParam
PackDDElParam.restype = ctypes.c_ssize_t
PackDDElParam.argtypes = [
    wintypes.DWORD,  # msg : DWORD
    ctypes.c_size_t,  # uiLo : UINT_PTR
    ctypes.c_size_t,  # uiHi : UINT_PTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
PackDDElParam = Fiddle::Function.new(
  lib['PackDDElParam'],
  [
    -Fiddle::TYPE_INT,  # msg : DWORD
    Fiddle::TYPE_UINTPTR_T,  # uiLo : UINT_PTR
    Fiddle::TYPE_UINTPTR_T,  # uiHi : UINT_PTR
  ],
  Fiddle::TYPE_INTPTR_T)

#[link(name = "user32")]
extern "system" {
    fn PackDDElParam(
        msg: u32,  // DWORD
        uiLo: usize,  // UINT_PTR
        uiHi: usize  // UINT_PTR
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll")]
public static extern IntPtr PackDDElParam(uint msg, UIntPtr uiLo, UIntPtr uiHi);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_PackDDElParam' -Namespace Win32 -PassThru
# $api::PackDDElParam(msg, uiLo, uiHi)

#uselib "USER32.dll"
#func global PackDDElParam "PackDDElParam" sptr, sptr, sptr
; PackDDElParam msg, uiLo, uiHi   ; 戻り値は stat
; msg : DWORD -> "sptr"
; uiLo : UINT_PTR -> "sptr"
; uiHi : UINT_PTR -> "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 "USER32.dll"
#cfunc global PackDDElParam "PackDDElParam" int, sptr, sptr
; res = PackDDElParam(msg, uiLo, uiHi)
; msg : DWORD -> "int"
; uiLo : UINT_PTR -> "sptr"
; uiHi : UINT_PTR -> "sptr"

; LPARAM PackDDElParam(DWORD msg, UINT_PTR uiLo, UINT_PTR uiHi)
#uselib "USER32.dll"
#cfunc global PackDDElParam "PackDDElParam" int, intptr, intptr
; res = PackDDElParam(msg, uiLo, uiHi)
; msg : DWORD -> "int"
; uiLo : UINT_PTR -> "intptr"
; uiHi : UINT_PTR -> "intptr"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procPackDDElParam = user32.NewProc("PackDDElParam")
)

// msg (DWORD), uiLo (UINT_PTR), uiHi (UINT_PTR)
r1, _, err := procPackDDElParam.Call(
	uintptr(msg),
	uintptr(uiLo),
	uintptr(uiHi),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LPARAM

function PackDDElParam(
  msg: DWORD;   // DWORD
  uiLo: NativeUInt;   // UINT_PTR
  uiHi: NativeUInt   // UINT_PTR
): NativeInt; stdcall;
  external 'USER32.dll' name 'PackDDElParam';

result := DllCall("USER32\PackDDElParam"
    , "UInt", msg   ; DWORD
    , "UPtr", uiLo   ; UINT_PTR
    , "UPtr", uiHi   ; UINT_PTR
    , "Ptr")   ; return: LPARAM

●PackDDElParam(msg, uiLo, uiHi) = DLL("USER32.dll", "int PackDDElParam(dword, int, int)")
# 呼び出し: PackDDElParam(msg, uiLo, uiHi)
# msg : DWORD -> "dword"
# uiLo : UINT_PTR -> "int"
# uiHi : UINT_PTR -> "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)。

const std = @import("std");

extern "user32" fn PackDDElParam(
    msg: u32, // DWORD
    uiLo: usize, // UINT_PTR
    uiHi: usize // UINT_PTR
) callconv(std.os.windows.WINAPI) isize;

proc PackDDElParam(
    msg: uint32,  # DWORD
    uiLo: uint,  # UINT_PTR
    uiHi: uint  # UINT_PTR
): int {.importc: "PackDDElParam", stdcall, dynlib: "USER32.dll".}

pragma(lib, "user32");
extern(Windows)
ptrdiff_t PackDDElParam(
    uint msg,   // DWORD
    size_t uiLo,   // UINT_PTR
    size_t uiHi   // UINT_PTR
);

ccall((:PackDDElParam, "USER32.dll"), stdcall, Int,
      (UInt32, Csize_t, Csize_t),
      msg, uiLo, uiHi)
# msg : DWORD -> UInt32
# uiLo : UINT_PTR -> Csize_t
# uiHi : UINT_PTR -> Csize_t
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
intptr_t PackDDElParam(
    uint32_t msg,
    uintptr_t uiLo,
    uintptr_t uiHi);
]]
local user32 = ffi.load("user32")
-- user32.PackDDElParam(msg, uiLo, uiHi)
-- msg : DWORD
-- uiLo : UINT_PTR
-- uiHi : UINT_PTR
-- 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 PackDDElParam = lib.func('__stdcall', 'PackDDElParam', 'intptr_t', ['uint32_t', 'uintptr_t', 'uintptr_t']);
// PackDDElParam(msg, uiLo, uiHi)
// msg : DWORD -> 'uint32_t'
// uiLo : UINT_PTR -> 'uintptr_t'
// uiHi : UINT_PTR -> '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", {
  PackDDElParam: { parameters: ["u32", "usize", "usize"], result: "isize" },
});
// lib.symbols.PackDDElParam(msg, uiLo, uiHi)
// msg : DWORD -> "u32"
// uiLo : UINT_PTR -> "usize"
// uiHi : UINT_PTR -> "usize"
// 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
intptr_t PackDDElParam(
    uint32_t msg,
    size_t uiLo,
    size_t uiHi);
C, "USER32.dll");
// $ffi->PackDDElParam(msg, uiLo, uiHi);
// msg : DWORD
// uiLo : UINT_PTR
// uiHi : UINT_PTR
// 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);
    long PackDDElParam(
        int msg,   // DWORD
        long uiLo,   // UINT_PTR
        long uiHi   // UINT_PTR
    );
}

@[Link("user32")]
lib LibUSER32
  fun PackDDElParam = PackDDElParam(
    msg : UInt32,   # DWORD
    uiLo : LibC::SizeT,   # UINT_PTR
    uiHi : LibC::SizeT   # UINT_PTR
  ) : LibC::SSizeT
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 PackDDElParamNative = IntPtr Function(Uint32, UintPtr, UintPtr);
typedef PackDDElParamDart = int Function(int, int, int);
final PackDDElParam = DynamicLibrary.open('USER32.dll')
    .lookupFunction<PackDDElParamNative, PackDDElParamDart>('PackDDElParam');
// msg : DWORD -> Uint32
// uiLo : UINT_PTR -> UintPtr
// uiHi : UINT_PTR -> UintPtr
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function PackDDElParam(
  msg: DWORD;   // DWORD
  uiLo: NativeUInt;   // UINT_PTR
  uiHi: NativeUInt   // UINT_PTR
): NativeInt; stdcall;
  external 'USER32.dll' name 'PackDDElParam';

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

foreign import stdcall safe "PackDDElParam"
  c_PackDDElParam :: Word32 -> CUIntPtr -> CUIntPtr -> IO CIntPtr
-- msg : DWORD -> Word32
-- uiLo : UINT_PTR -> CUIntPtr
-- uiHi : UINT_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 packddelparam =
  foreign "PackDDElParam"
    (uint32_t @-> size_t @-> size_t @-> returning intptr_t)
(* msg : DWORD -> uint32_t *)
(* uiLo : UINT_PTR -> size_t *)
(* uiHi : UINT_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 ("PackDDElParam" pack-ddel-param :convention :stdcall) :int64
  (msg :uint32)   ; DWORD
  (ui-lo :uint64)   ; UINT_PTR
  (ui-hi :uint64))   ; UINT_PTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $PackDDElParam = Win32::API::More->new('USER32',
    'LPARAM PackDDElParam(DWORD msg, WPARAM uiLo, WPARAM uiHi)');
# my $ret = $PackDDElParam->Call($msg, $uiLo, $uiHi);
# msg : DWORD -> DWORD
# uiLo : UINT_PTR -> WPARAM
# uiHi : UINT_PTR -> WPARAM
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。