InSendMessageEx

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

DWORD InSendMessageEx(
    void* lpReserved   // optional
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function InSendMessageEx(
    lpReserved As IntPtr   ' void* optional
) As UInteger
End Function

' lpReserved : void* optional
Declare PtrSafe Function InSendMessageEx Lib "user32" ( _
    ByVal lpReserved 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

InSendMessageEx = ctypes.windll.user32.InSendMessageEx
InSendMessageEx.restype = wintypes.DWORD
InSendMessageEx.argtypes = [
    ctypes.POINTER(None),  # lpReserved : void* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
InSendMessageEx = Fiddle::Function.new(
  lib['InSendMessageEx'],
  [
    Fiddle::TYPE_VOIDP,  # lpReserved : void* optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn InSendMessageEx(
        lpReserved: *mut ()  // void* optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll")]
public static extern uint InSendMessageEx(IntPtr lpReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_InSendMessageEx' -Namespace Win32 -PassThru
# $api::InSendMessageEx(lpReserved)

#uselib "USER32.dll"
#func global InSendMessageEx "InSendMessageEx" sptr
; InSendMessageEx lpReserved   ; 戻り値は stat
; lpReserved : void* optional -> "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 InSendMessageEx "InSendMessageEx" sptr
; res = InSendMessageEx(lpReserved)
; lpReserved : void* optional -> "sptr"

; DWORD InSendMessageEx(void* lpReserved)
#uselib "USER32.dll"
#cfunc global InSendMessageEx "InSendMessageEx" intptr
; res = InSendMessageEx(lpReserved)
; lpReserved : void* optional -> "intptr"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procInSendMessageEx = user32.NewProc("InSendMessageEx")
)

// lpReserved (void* optional)
r1, _, err := procInSendMessageEx.Call(
	uintptr(lpReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function InSendMessageEx(
  lpReserved: Pointer   // void* optional
): DWORD; stdcall;
  external 'USER32.dll' name 'InSendMessageEx';

result := DllCall("USER32\InSendMessageEx"
    , "Ptr", lpReserved   ; void* optional
    , "UInt")   ; return: DWORD

●InSendMessageEx(lpReserved) = DLL("USER32.dll", "dword InSendMessageEx(void*)")
# 呼び出し: InSendMessageEx(lpReserved)
# lpReserved : void* optional -> "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 InSendMessageEx(
    lpReserved: ?*anyopaque // void* optional
) callconv(std.os.windows.WINAPI) u32;

proc InSendMessageEx(
    lpReserved: pointer  # void* optional
): uint32 {.importc: "InSendMessageEx", stdcall, dynlib: "USER32.dll".}

pragma(lib, "user32");
extern(Windows)
uint InSendMessageEx(
    void* lpReserved   // void* optional
);

ccall((:InSendMessageEx, "USER32.dll"), stdcall, UInt32,
      (Ptr{Cvoid},),
      lpReserved)
# lpReserved : void* optional -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t InSendMessageEx(
    void* lpReserved);
]]
local user32 = ffi.load("user32")
-- user32.InSendMessageEx(lpReserved)
-- lpReserved : void* optional
-- 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 InSendMessageEx = lib.func('__stdcall', 'InSendMessageEx', 'uint32_t', ['void *']);
// InSendMessageEx(lpReserved)
// lpReserved : void* optional -> '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("USER32.dll", {
  InSendMessageEx: { parameters: ["pointer"], result: "u32" },
});
// lib.symbols.InSendMessageEx(lpReserved)
// lpReserved : void* optional -> "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
uint32_t InSendMessageEx(
    void* lpReserved);
C, "USER32.dll");
// $ffi->InSendMessageEx(lpReserved);
// lpReserved : void* optional
// 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);
    int InSendMessageEx(
        Pointer lpReserved   // void* optional
    );
}

@[Link("user32")]
lib LibUSER32
  fun InSendMessageEx = InSendMessageEx(
    lpReserved : Void*   # void* optional
  ) : UInt32
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 InSendMessageExNative = Uint32 Function(Pointer<Void>);
typedef InSendMessageExDart = int Function(Pointer<Void>);
final InSendMessageEx = DynamicLibrary.open('USER32.dll')
    .lookupFunction<InSendMessageExNative, InSendMessageExDart>('InSendMessageEx');
// lpReserved : void* optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function InSendMessageEx(
  lpReserved: Pointer   // void* optional
): DWORD; stdcall;
  external 'USER32.dll' name 'InSendMessageEx';

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

foreign import stdcall safe "InSendMessageEx"
  c_InSendMessageEx :: Ptr () -> IO Word32
-- lpReserved : void* optional -> 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 insendmessageex =
  foreign "InSendMessageEx"
    ((ptr void) @-> returning uint32_t)
(* lpReserved : void* optional -> (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 user32 (t "USER32.dll"))
(cffi:use-foreign-library user32)

(cffi:defcfun ("InSendMessageEx" in-send-message-ex :convention :stdcall) :uint32
  (lp-reserved :pointer))   ; void* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $InSendMessageEx = Win32::API::More->new('USER32',
    'DWORD InSendMessageEx(LPVOID lpReserved)');
# my $ret = $InSendMessageEx->Call($lpReserved);
# lpReserved : void* optional -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。