RegisterScaleChangeEvent

// api-ms-win-shcore-scaling-l1-1-1.dll
#include <windows.h>

HRESULT RegisterScaleChangeEvent(
    HANDLE hEvent,
    UINT_PTR* pdwCookie
);

<DllImport("api-ms-win-shcore-scaling-l1-1-1.dll", ExactSpelling:=True)>
Public Shared Function RegisterScaleChangeEvent(
    hEvent As IntPtr,   ' HANDLE
    <Out> ByRef pdwCookie As UIntPtr   ' UINT_PTR* out
) As Integer
End Function

' hEvent : HANDLE
' pdwCookie : UINT_PTR* out
Declare PtrSafe Function RegisterScaleChangeEvent Lib "api-ms-win-shcore-scaling-l1-1-1" ( _
    ByVal hEvent As LongPtr, _
    ByRef pdwCookie 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

RegisterScaleChangeEvent = ctypes.windll.LoadLibrary("api-ms-win-shcore-scaling-l1-1-1.dll").RegisterScaleChangeEvent
RegisterScaleChangeEvent.restype = ctypes.c_int
RegisterScaleChangeEvent.argtypes = [
    wintypes.HANDLE,  # hEvent : HANDLE
    ctypes.POINTER(ctypes.c_size_t),  # pdwCookie : UINT_PTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('api-ms-win-shcore-scaling-l1-1-1.dll')
RegisterScaleChangeEvent = Fiddle::Function.new(
  lib['RegisterScaleChangeEvent'],
  [
    Fiddle::TYPE_VOIDP,  # hEvent : HANDLE
    Fiddle::TYPE_VOIDP,  # pdwCookie : UINT_PTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "api-ms-win-shcore-scaling-l1-1-1")]
extern "system" {
    fn RegisterScaleChangeEvent(
        hEvent: *mut core::ffi::c_void,  // HANDLE
        pdwCookie: *mut usize  // UINT_PTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("api-ms-win-shcore-scaling-l1-1-1.dll")]
public static extern int RegisterScaleChangeEvent(IntPtr hEvent, out UIntPtr pdwCookie);
"@
$api = Add-Type -MemberDefinition $sig -Name 'api-ms-win-shcore-scaling-l1-1-1_RegisterScaleChangeEvent' -Namespace Win32 -PassThru
# $api::RegisterScaleChangeEvent(hEvent, pdwCookie)

#uselib "api-ms-win-shcore-scaling-l1-1-1.dll"
#func global RegisterScaleChangeEvent "RegisterScaleChangeEvent" sptr, sptr
; RegisterScaleChangeEvent hEvent, varptr(pdwCookie)   ; 戻り値は stat
; hEvent : HANDLE -> "sptr"
; pdwCookie : UINT_PTR* out -> "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 "api-ms-win-shcore-scaling-l1-1-1.dll"
#cfunc global RegisterScaleChangeEvent "RegisterScaleChangeEvent" sptr, var
; res = RegisterScaleChangeEvent(hEvent, pdwCookie)
; hEvent : HANDLE -> "sptr"
; pdwCookie : UINT_PTR* out -> "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。

; HRESULT RegisterScaleChangeEvent(HANDLE hEvent, UINT_PTR* pdwCookie)
#uselib "api-ms-win-shcore-scaling-l1-1-1.dll"
#cfunc global RegisterScaleChangeEvent "RegisterScaleChangeEvent" intptr, var
; res = RegisterScaleChangeEvent(hEvent, pdwCookie)
; hEvent : HANDLE -> "intptr"
; pdwCookie : UINT_PTR* out -> "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 (
	api_ms_win_shcore_scaling_l1_1_1 = windows.NewLazySystemDLL("api-ms-win-shcore-scaling-l1-1-1.dll")
	procRegisterScaleChangeEvent = api_ms_win_shcore_scaling_l1_1_1.NewProc("RegisterScaleChangeEvent")
)

// hEvent (HANDLE), pdwCookie (UINT_PTR* out)
r1, _, err := procRegisterScaleChangeEvent.Call(
	uintptr(hEvent),
	uintptr(pdwCookie),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function RegisterScaleChangeEvent(
  hEvent: THandle;   // HANDLE
  pdwCookie: Pointer   // UINT_PTR* out
): Integer; stdcall;
  external 'api-ms-win-shcore-scaling-l1-1-1.dll' name 'RegisterScaleChangeEvent';

result := DllCall("api-ms-win-shcore-scaling-l1-1-1\RegisterScaleChangeEvent"
    , "Ptr", hEvent   ; HANDLE
    , "Ptr", pdwCookie   ; UINT_PTR* out
    , "Int")   ; return: HRESULT

●RegisterScaleChangeEvent(hEvent, pdwCookie) = DLL("api-ms-win-shcore-scaling-l1-1-1.dll", "int RegisterScaleChangeEvent(void*, void*)")
# 呼び出し: RegisterScaleChangeEvent(hEvent, pdwCookie)
# hEvent : HANDLE -> "void*"
# pdwCookie : UINT_PTR* out -> "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)。