SetWindowPlacement

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

BOOL SetWindowPlacement(
    HWND hWnd,
    const WINDOWPLACEMENT* lpwndpl
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetWindowPlacement(
    hWnd As IntPtr,   ' HWND
    lpwndpl As IntPtr   ' WINDOWPLACEMENT*
) As Boolean
End Function

' hWnd : HWND
' lpwndpl : WINDOWPLACEMENT*
Declare PtrSafe Function SetWindowPlacement Lib "user32" ( _
    ByVal hWnd As LongPtr, _
    ByVal lpwndpl 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

SetWindowPlacement = ctypes.windll.user32.SetWindowPlacement
SetWindowPlacement.restype = wintypes.BOOL
SetWindowPlacement.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND
    ctypes.c_void_p,  # lpwndpl : WINDOWPLACEMENT*
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
SetWindowPlacement = Fiddle::Function.new(
  lib['SetWindowPlacement'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # lpwndpl : WINDOWPLACEMENT*
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn SetWindowPlacement(
        hWnd: *mut core::ffi::c_void,  // HWND
        lpwndpl: *const WINDOWPLACEMENT  // WINDOWPLACEMENT*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true)]
public static extern bool SetWindowPlacement(IntPtr hWnd, IntPtr lpwndpl);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_SetWindowPlacement' -Namespace Win32 -PassThru
# $api::SetWindowPlacement(hWnd, lpwndpl)

#uselib "USER32.dll"
#func global SetWindowPlacement "SetWindowPlacement" sptr, sptr
; SetWindowPlacement hWnd, varptr(lpwndpl)   ; 戻り値は stat
; hWnd : HWND -> "sptr"
; lpwndpl : WINDOWPLACEMENT* -> "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 SetWindowPlacement "SetWindowPlacement" sptr, var
; res = SetWindowPlacement(hWnd, lpwndpl)
; hWnd : HWND -> "sptr"
; lpwndpl : WINDOWPLACEMENT* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; BOOL SetWindowPlacement(HWND hWnd, WINDOWPLACEMENT* lpwndpl)
#uselib "USER32.dll"
#cfunc global SetWindowPlacement "SetWindowPlacement" intptr, var
; res = SetWindowPlacement(hWnd, lpwndpl)
; hWnd : HWND -> "intptr"
; lpwndpl : WINDOWPLACEMENT* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procSetWindowPlacement = user32.NewProc("SetWindowPlacement")
)

// hWnd (HWND), lpwndpl (WINDOWPLACEMENT*)
r1, _, err := procSetWindowPlacement.Call(
	uintptr(hWnd),
	uintptr(lpwndpl),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetWindowPlacement(
  hWnd: THandle;   // HWND
  lpwndpl: Pointer   // WINDOWPLACEMENT*
): BOOL; stdcall;
  external 'USER32.dll' name 'SetWindowPlacement';

result := DllCall("USER32\SetWindowPlacement"
    , "Ptr", hWnd   ; HWND
    , "Ptr", lpwndpl   ; WINDOWPLACEMENT*
    , "Int")   ; return: BOOL

●SetWindowPlacement(hWnd, lpwndpl) = DLL("USER32.dll", "bool SetWindowPlacement(void*, void*)")
# 呼び出し: SetWindowPlacement(hWnd, lpwndpl)
# hWnd : HWND -> "void*"
# lpwndpl : WINDOWPLACEMENT* -> "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)。