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)。