DeferWindowPos

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

HDWP DeferWindowPos(
    HDWP hWinPosInfo,
    HWND hWnd,
    HWND hWndInsertAfter,   // optional
    INT x,
    INT y,
    INT cx,
    INT cy,
    SET_WINDOW_POS_FLAGS uFlags
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DeferWindowPos(
    hWinPosInfo As IntPtr,   ' HDWP
    hWnd As IntPtr,   ' HWND
    hWndInsertAfter As IntPtr,   ' HWND optional
    x As Integer,   ' INT
    y As Integer,   ' INT
    cx As Integer,   ' INT
    cy As Integer,   ' INT
    uFlags As UInteger   ' SET_WINDOW_POS_FLAGS
) As IntPtr
End Function

' hWinPosInfo : HDWP
' hWnd : HWND
' hWndInsertAfter : HWND optional
' x : INT
' y : INT
' cx : INT
' cy : INT
' uFlags : SET_WINDOW_POS_FLAGS
Declare PtrSafe Function DeferWindowPos Lib "user32" ( _
    ByVal hWinPosInfo As LongPtr, _
    ByVal hWnd As LongPtr, _
    ByVal hWndInsertAfter As LongPtr, _
    ByVal x As Long, _
    ByVal y As Long, _
    ByVal cx As Long, _
    ByVal cy As Long, _
    ByVal uFlags 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

DeferWindowPos = ctypes.windll.user32.DeferWindowPos
DeferWindowPos.restype = ctypes.c_void_p
DeferWindowPos.argtypes = [
    wintypes.HANDLE,  # hWinPosInfo : HDWP
    wintypes.HANDLE,  # hWnd : HWND
    wintypes.HANDLE,  # hWndInsertAfter : HWND optional
    ctypes.c_int,  # x : INT
    ctypes.c_int,  # y : INT
    ctypes.c_int,  # cx : INT
    ctypes.c_int,  # cy : INT
    wintypes.DWORD,  # uFlags : SET_WINDOW_POS_FLAGS
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
DeferWindowPos = Fiddle::Function.new(
  lib['DeferWindowPos'],
  [
    Fiddle::TYPE_VOIDP,  # hWinPosInfo : HDWP
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # hWndInsertAfter : HWND optional
    Fiddle::TYPE_INT,  # x : INT
    Fiddle::TYPE_INT,  # y : INT
    Fiddle::TYPE_INT,  # cx : INT
    Fiddle::TYPE_INT,  # cy : INT
    -Fiddle::TYPE_INT,  # uFlags : SET_WINDOW_POS_FLAGS
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "user32")]
extern "system" {
    fn DeferWindowPos(
        hWinPosInfo: *mut core::ffi::c_void,  // HDWP
        hWnd: *mut core::ffi::c_void,  // HWND
        hWndInsertAfter: *mut core::ffi::c_void,  // HWND optional
        x: i32,  // INT
        y: i32,  // INT
        cx: i32,  // INT
        cy: i32,  // INT
        uFlags: u32  // SET_WINDOW_POS_FLAGS
    ) -> *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 DeferWindowPos(IntPtr hWinPosInfo, IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, uint uFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_DeferWindowPos' -Namespace Win32 -PassThru
# $api::DeferWindowPos(hWinPosInfo, hWnd, hWndInsertAfter, x, y, cx, cy, uFlags)

#uselib "USER32.dll"
#func global DeferWindowPos "DeferWindowPos" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DeferWindowPos hWinPosInfo, hWnd, hWndInsertAfter, x, y, cx, cy, uFlags   ; 戻り値は stat
; hWinPosInfo : HDWP -> "sptr"
; hWnd : HWND -> "sptr"
; hWndInsertAfter : HWND optional -> "sptr"
; x : INT -> "sptr"
; y : INT -> "sptr"
; cx : INT -> "sptr"
; cy : INT -> "sptr"
; uFlags : SET_WINDOW_POS_FLAGS -> "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 DeferWindowPos "DeferWindowPos" sptr, sptr, sptr, int, int, int, int, int
; res = DeferWindowPos(hWinPosInfo, hWnd, hWndInsertAfter, x, y, cx, cy, uFlags)
; hWinPosInfo : HDWP -> "sptr"
; hWnd : HWND -> "sptr"
; hWndInsertAfter : HWND optional -> "sptr"
; x : INT -> "int"
; y : INT -> "int"
; cx : INT -> "int"
; cy : INT -> "int"
; uFlags : SET_WINDOW_POS_FLAGS -> "int"

; HDWP DeferWindowPos(HDWP hWinPosInfo, HWND hWnd, HWND hWndInsertAfter, INT x, INT y, INT cx, INT cy, SET_WINDOW_POS_FLAGS uFlags)
#uselib "USER32.dll"
#cfunc global DeferWindowPos "DeferWindowPos" intptr, intptr, intptr, int, int, int, int, int
; res = DeferWindowPos(hWinPosInfo, hWnd, hWndInsertAfter, x, y, cx, cy, uFlags)
; hWinPosInfo : HDWP -> "intptr"
; hWnd : HWND -> "intptr"
; hWndInsertAfter : HWND optional -> "intptr"
; x : INT -> "int"
; y : INT -> "int"
; cx : INT -> "int"
; cy : INT -> "int"
; uFlags : SET_WINDOW_POS_FLAGS -> "int"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procDeferWindowPos = user32.NewProc("DeferWindowPos")
)

// hWinPosInfo (HDWP), hWnd (HWND), hWndInsertAfter (HWND optional), x (INT), y (INT), cx (INT), cy (INT), uFlags (SET_WINDOW_POS_FLAGS)
r1, _, err := procDeferWindowPos.Call(
	uintptr(hWinPosInfo),
	uintptr(hWnd),
	uintptr(hWndInsertAfter),
	uintptr(x),
	uintptr(y),
	uintptr(cx),
	uintptr(cy),
	uintptr(uFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HDWP

function DeferWindowPos(
  hWinPosInfo: THandle;   // HDWP
  hWnd: THandle;   // HWND
  hWndInsertAfter: THandle;   // HWND optional
  x: Integer;   // INT
  y: Integer;   // INT
  cx: Integer;   // INT
  cy: Integer;   // INT
  uFlags: DWORD   // SET_WINDOW_POS_FLAGS
): THandle; stdcall;
  external 'USER32.dll' name 'DeferWindowPos';

result := DllCall("USER32\DeferWindowPos"
    , "Ptr", hWinPosInfo   ; HDWP
    , "Ptr", hWnd   ; HWND
    , "Ptr", hWndInsertAfter   ; HWND optional
    , "Int", x   ; INT
    , "Int", y   ; INT
    , "Int", cx   ; INT
    , "Int", cy   ; INT
    , "UInt", uFlags   ; SET_WINDOW_POS_FLAGS
    , "Ptr")   ; return: HDWP

●DeferWindowPos(hWinPosInfo, hWnd, hWndInsertAfter, x, y, cx, cy, uFlags) = DLL("USER32.dll", "void* DeferWindowPos(void*, void*, void*, int, int, int, int, dword)")
# 呼び出し: DeferWindowPos(hWinPosInfo, hWnd, hWndInsertAfter, x, y, cx, cy, uFlags)
# hWinPosInfo : HDWP -> "void*"
# hWnd : HWND -> "void*"
# hWndInsertAfter : HWND optional -> "void*"
# x : INT -> "int"
# y : INT -> "int"
# cx : INT -> "int"
# cy : INT -> "int"
# uFlags : SET_WINDOW_POS_FLAGS -> "dword"
# 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)。