SetWindowDisplayAffinity

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

BOOL SetWindowDisplayAffinity(
    HWND hWnd,
    WINDOW_DISPLAY_AFFINITY dwAffinity
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetWindowDisplayAffinity(
    hWnd As IntPtr,   ' HWND
    dwAffinity As UInteger   ' WINDOW_DISPLAY_AFFINITY
) As Boolean
End Function

' hWnd : HWND
' dwAffinity : WINDOW_DISPLAY_AFFINITY
Declare PtrSafe Function SetWindowDisplayAffinity Lib "user32" ( _
    ByVal hWnd As LongPtr, _
    ByVal dwAffinity As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SetWindowDisplayAffinity = ctypes.windll.user32.SetWindowDisplayAffinity
SetWindowDisplayAffinity.restype = wintypes.BOOL
SetWindowDisplayAffinity.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND
    wintypes.DWORD,  # dwAffinity : WINDOW_DISPLAY_AFFINITY
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
SetWindowDisplayAffinity = Fiddle::Function.new(
  lib['SetWindowDisplayAffinity'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    -Fiddle::TYPE_INT,  # dwAffinity : WINDOW_DISPLAY_AFFINITY
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn SetWindowDisplayAffinity(
        hWnd: *mut core::ffi::c_void,  // HWND
        dwAffinity: u32  // WINDOW_DISPLAY_AFFINITY
    ) -> 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 SetWindowDisplayAffinity(IntPtr hWnd, uint dwAffinity);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_SetWindowDisplayAffinity' -Namespace Win32 -PassThru
# $api::SetWindowDisplayAffinity(hWnd, dwAffinity)

#uselib "USER32.dll"
#func global SetWindowDisplayAffinity "SetWindowDisplayAffinity" sptr, sptr
; SetWindowDisplayAffinity hWnd, dwAffinity   ; 戻り値は stat
; hWnd : HWND -> "sptr"
; dwAffinity : WINDOW_DISPLAY_AFFINITY -> "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 SetWindowDisplayAffinity "SetWindowDisplayAffinity" sptr, int
; res = SetWindowDisplayAffinity(hWnd, dwAffinity)
; hWnd : HWND -> "sptr"
; dwAffinity : WINDOW_DISPLAY_AFFINITY -> "int"

; BOOL SetWindowDisplayAffinity(HWND hWnd, WINDOW_DISPLAY_AFFINITY dwAffinity)
#uselib "USER32.dll"
#cfunc global SetWindowDisplayAffinity "SetWindowDisplayAffinity" intptr, int
; res = SetWindowDisplayAffinity(hWnd, dwAffinity)
; hWnd : HWND -> "intptr"
; dwAffinity : WINDOW_DISPLAY_AFFINITY -> "int"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procSetWindowDisplayAffinity = user32.NewProc("SetWindowDisplayAffinity")
)

// hWnd (HWND), dwAffinity (WINDOW_DISPLAY_AFFINITY)
r1, _, err := procSetWindowDisplayAffinity.Call(
	uintptr(hWnd),
	uintptr(dwAffinity),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetWindowDisplayAffinity(
  hWnd: THandle;   // HWND
  dwAffinity: DWORD   // WINDOW_DISPLAY_AFFINITY
): BOOL; stdcall;
  external 'USER32.dll' name 'SetWindowDisplayAffinity';

result := DllCall("USER32\SetWindowDisplayAffinity"
    , "Ptr", hWnd   ; HWND
    , "UInt", dwAffinity   ; WINDOW_DISPLAY_AFFINITY
    , "Int")   ; return: BOOL

●SetWindowDisplayAffinity(hWnd, dwAffinity) = DLL("USER32.dll", "bool SetWindowDisplayAffinity(void*, dword)")
# 呼び出し: SetWindowDisplayAffinity(hWnd, dwAffinity)
# hWnd : HWND -> "void*"
# dwAffinity : WINDOW_DISPLAY_AFFINITY -> "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)。