BeginDeferWindowPos

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

HDWP BeginDeferWindowPos(
    INT nNumWindows
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function BeginDeferWindowPos(
    nNumWindows As Integer   ' INT
) As IntPtr
End Function

' nNumWindows : INT
Declare PtrSafe Function BeginDeferWindowPos Lib "user32" ( _
    ByVal nNumWindows As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

BeginDeferWindowPos = ctypes.windll.user32.BeginDeferWindowPos
BeginDeferWindowPos.restype = ctypes.c_void_p
BeginDeferWindowPos.argtypes = [
    ctypes.c_int,  # nNumWindows : INT
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
BeginDeferWindowPos = Fiddle::Function.new(
  lib['BeginDeferWindowPos'],
  [
    Fiddle::TYPE_INT,  # nNumWindows : INT
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "user32")]
extern "system" {
    fn BeginDeferWindowPos(
        nNumWindows: i32  // INT
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll", SetLastError = true)]
public static extern IntPtr BeginDeferWindowPos(int nNumWindows);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_BeginDeferWindowPos' -Namespace Win32 -PassThru
# $api::BeginDeferWindowPos(nNumWindows)

#uselib "USER32.dll"
#func global BeginDeferWindowPos "BeginDeferWindowPos" sptr
; BeginDeferWindowPos nNumWindows   ; 戻り値は stat
; nNumWindows : INT -> "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 BeginDeferWindowPos "BeginDeferWindowPos" int
; res = BeginDeferWindowPos(nNumWindows)
; nNumWindows : INT -> "int"

; HDWP BeginDeferWindowPos(INT nNumWindows)
#uselib "USER32.dll"
#cfunc global BeginDeferWindowPos "BeginDeferWindowPos" int
; res = BeginDeferWindowPos(nNumWindows)
; nNumWindows : INT -> "int"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procBeginDeferWindowPos = user32.NewProc("BeginDeferWindowPos")
)

// nNumWindows (INT)
r1, _, err := procBeginDeferWindowPos.Call(
	uintptr(nNumWindows),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HDWP

function BeginDeferWindowPos(
  nNumWindows: Integer   // INT
): THandle; stdcall;
  external 'USER32.dll' name 'BeginDeferWindowPos';

result := DllCall("USER32\BeginDeferWindowPos"
    , "Int", nNumWindows   ; INT
    , "Ptr")   ; return: HDWP

●BeginDeferWindowPos(nNumWindows) = DLL("USER32.dll", "void* BeginDeferWindowPos(int)")
# 呼び出し: BeginDeferWindowPos(nNumWindows)
# nNumWindows : INT -> "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)。