ChangeWindowMessageFilterEx

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

BOOL ChangeWindowMessageFilterEx(
    HWND hwnd,
    DWORD message,
    WINDOW_MESSAGE_FILTER_ACTION action,
    CHANGEFILTERSTRUCT* pChangeFilterStruct   // optional
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function ChangeWindowMessageFilterEx(
    hwnd As IntPtr,   ' HWND
    message As UInteger,   ' DWORD
    action As UInteger,   ' WINDOW_MESSAGE_FILTER_ACTION
    pChangeFilterStruct As IntPtr   ' CHANGEFILTERSTRUCT* optional, in/out
) As Boolean
End Function

' hwnd : HWND
' message : DWORD
' action : WINDOW_MESSAGE_FILTER_ACTION
' pChangeFilterStruct : CHANGEFILTERSTRUCT* optional, in/out
Declare PtrSafe Function ChangeWindowMessageFilterEx Lib "user32" ( _
    ByVal hwnd As LongPtr, _
    ByVal message As Long, _
    ByVal action As Long, _
    ByVal pChangeFilterStruct 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

ChangeWindowMessageFilterEx = ctypes.windll.user32.ChangeWindowMessageFilterEx
ChangeWindowMessageFilterEx.restype = wintypes.BOOL
ChangeWindowMessageFilterEx.argtypes = [
    wintypes.HANDLE,  # hwnd : HWND
    wintypes.DWORD,  # message : DWORD
    wintypes.DWORD,  # action : WINDOW_MESSAGE_FILTER_ACTION
    ctypes.c_void_p,  # pChangeFilterStruct : CHANGEFILTERSTRUCT* optional, in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
ChangeWindowMessageFilterEx = Fiddle::Function.new(
  lib['ChangeWindowMessageFilterEx'],
  [
    Fiddle::TYPE_VOIDP,  # hwnd : HWND
    -Fiddle::TYPE_INT,  # message : DWORD
    -Fiddle::TYPE_INT,  # action : WINDOW_MESSAGE_FILTER_ACTION
    Fiddle::TYPE_VOIDP,  # pChangeFilterStruct : CHANGEFILTERSTRUCT* optional, in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn ChangeWindowMessageFilterEx(
        hwnd: *mut core::ffi::c_void,  // HWND
        message: u32,  // DWORD
        action: u32,  // WINDOW_MESSAGE_FILTER_ACTION
        pChangeFilterStruct: *mut CHANGEFILTERSTRUCT  // CHANGEFILTERSTRUCT* optional, in/out
    ) -> 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 ChangeWindowMessageFilterEx(IntPtr hwnd, uint message, uint action, IntPtr pChangeFilterStruct);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_ChangeWindowMessageFilterEx' -Namespace Win32 -PassThru
# $api::ChangeWindowMessageFilterEx(hwnd, message, action, pChangeFilterStruct)

#uselib "USER32.dll"
#func global ChangeWindowMessageFilterEx "ChangeWindowMessageFilterEx" sptr, sptr, sptr, sptr
; ChangeWindowMessageFilterEx hwnd, message, action, varptr(pChangeFilterStruct)   ; 戻り値は stat
; hwnd : HWND -> "sptr"
; message : DWORD -> "sptr"
; action : WINDOW_MESSAGE_FILTER_ACTION -> "sptr"
; pChangeFilterStruct : CHANGEFILTERSTRUCT* optional, in/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 "USER32.dll"
#cfunc global ChangeWindowMessageFilterEx "ChangeWindowMessageFilterEx" sptr, int, int, var
; res = ChangeWindowMessageFilterEx(hwnd, message, action, pChangeFilterStruct)
; hwnd : HWND -> "sptr"
; message : DWORD -> "int"
; action : WINDOW_MESSAGE_FILTER_ACTION -> "int"
; pChangeFilterStruct : CHANGEFILTERSTRUCT* optional, in/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。

; BOOL ChangeWindowMessageFilterEx(HWND hwnd, DWORD message, WINDOW_MESSAGE_FILTER_ACTION action, CHANGEFILTERSTRUCT* pChangeFilterStruct)
#uselib "USER32.dll"
#cfunc global ChangeWindowMessageFilterEx "ChangeWindowMessageFilterEx" intptr, int, int, var
; res = ChangeWindowMessageFilterEx(hwnd, message, action, pChangeFilterStruct)
; hwnd : HWND -> "intptr"
; message : DWORD -> "int"
; action : WINDOW_MESSAGE_FILTER_ACTION -> "int"
; pChangeFilterStruct : CHANGEFILTERSTRUCT* optional, in/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 (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procChangeWindowMessageFilterEx = user32.NewProc("ChangeWindowMessageFilterEx")
)

// hwnd (HWND), message (DWORD), action (WINDOW_MESSAGE_FILTER_ACTION), pChangeFilterStruct (CHANGEFILTERSTRUCT* optional, in/out)
r1, _, err := procChangeWindowMessageFilterEx.Call(
	uintptr(hwnd),
	uintptr(message),
	uintptr(action),
	uintptr(pChangeFilterStruct),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function ChangeWindowMessageFilterEx(
  hwnd: THandle;   // HWND
  message: DWORD;   // DWORD
  action: DWORD;   // WINDOW_MESSAGE_FILTER_ACTION
  pChangeFilterStruct: Pointer   // CHANGEFILTERSTRUCT* optional, in/out
): BOOL; stdcall;
  external 'USER32.dll' name 'ChangeWindowMessageFilterEx';

result := DllCall("USER32\ChangeWindowMessageFilterEx"
    , "Ptr", hwnd   ; HWND
    , "UInt", message   ; DWORD
    , "UInt", action   ; WINDOW_MESSAGE_FILTER_ACTION
    , "Ptr", pChangeFilterStruct   ; CHANGEFILTERSTRUCT* optional, in/out
    , "Int")   ; return: BOOL

●ChangeWindowMessageFilterEx(hwnd, message, action, pChangeFilterStruct) = DLL("USER32.dll", "bool ChangeWindowMessageFilterEx(void*, dword, dword, void*)")
# 呼び出し: ChangeWindowMessageFilterEx(hwnd, message, action, pChangeFilterStruct)
# hwnd : HWND -> "void*"
# message : DWORD -> "dword"
# action : WINDOW_MESSAGE_FILTER_ACTION -> "dword"
# pChangeFilterStruct : CHANGEFILTERSTRUCT* optional, in/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)。