DwmEnableBlurBehindWindow

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

HRESULT DwmEnableBlurBehindWindow(
    HWND hWnd,
    const DWM_BLURBEHIND* pBlurBehind
);

<DllImport("dwmapi.dll", ExactSpelling:=True)>
Public Shared Function DwmEnableBlurBehindWindow(
    hWnd As IntPtr,   ' HWND
    pBlurBehind As IntPtr   ' DWM_BLURBEHIND*
) As Integer
End Function

' hWnd : HWND
' pBlurBehind : DWM_BLURBEHIND*
Declare PtrSafe Function DwmEnableBlurBehindWindow Lib "dwmapi" ( _
    ByVal hWnd As LongPtr, _
    ByVal pBlurBehind 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

DwmEnableBlurBehindWindow = ctypes.windll.dwmapi.DwmEnableBlurBehindWindow
DwmEnableBlurBehindWindow.restype = ctypes.c_int
DwmEnableBlurBehindWindow.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND
    ctypes.c_void_p,  # pBlurBehind : DWM_BLURBEHIND*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dwmapi.dll')
DwmEnableBlurBehindWindow = Fiddle::Function.new(
  lib['DwmEnableBlurBehindWindow'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # pBlurBehind : DWM_BLURBEHIND*
  ],
  Fiddle::TYPE_INT)

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

$sig = @"
[DllImport("dwmapi.dll")]
public static extern int DwmEnableBlurBehindWindow(IntPtr hWnd, IntPtr pBlurBehind);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dwmapi_DwmEnableBlurBehindWindow' -Namespace Win32 -PassThru
# $api::DwmEnableBlurBehindWindow(hWnd, pBlurBehind)

#uselib "dwmapi.dll"
#func global DwmEnableBlurBehindWindow "DwmEnableBlurBehindWindow" sptr, sptr
; DwmEnableBlurBehindWindow hWnd, varptr(pBlurBehind)   ; 戻り値は stat
; hWnd : HWND -> "sptr"
; pBlurBehind : DWM_BLURBEHIND* -> "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。

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

var (
	dwmapi = windows.NewLazySystemDLL("dwmapi.dll")
	procDwmEnableBlurBehindWindow = dwmapi.NewProc("DwmEnableBlurBehindWindow")
)

// hWnd (HWND), pBlurBehind (DWM_BLURBEHIND*)
r1, _, err := procDwmEnableBlurBehindWindow.Call(
	uintptr(hWnd),
	uintptr(pBlurBehind),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DwmEnableBlurBehindWindow(
  hWnd: THandle;   // HWND
  pBlurBehind: Pointer   // DWM_BLURBEHIND*
): Integer; stdcall;
  external 'dwmapi.dll' name 'DwmEnableBlurBehindWindow';

result := DllCall("dwmapi\DwmEnableBlurBehindWindow"
    , "Ptr", hWnd   ; HWND
    , "Ptr", pBlurBehind   ; DWM_BLURBEHIND*
    , "Int")   ; return: HRESULT

●DwmEnableBlurBehindWindow(hWnd, pBlurBehind) = DLL("dwmapi.dll", "int DwmEnableBlurBehindWindow(void*, void*)")
# 呼び出し: DwmEnableBlurBehindWindow(hWnd, pBlurBehind)
# hWnd : HWND -> "void*"
# pBlurBehind : DWM_BLURBEHIND* -> "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)。

const std = @import("std");

extern "dwmapi" fn DwmEnableBlurBehindWindow(
    hWnd: ?*anyopaque, // HWND
    pBlurBehind: [*c]DWM_BLURBEHIND // DWM_BLURBEHIND*
) callconv(std.os.windows.WINAPI) i32;

proc DwmEnableBlurBehindWindow(
    hWnd: pointer,  # HWND
    pBlurBehind: ptr DWM_BLURBEHIND  # DWM_BLURBEHIND*
): int32 {.importc: "DwmEnableBlurBehindWindow", stdcall, dynlib: "dwmapi.dll".}

pragma(lib, "dwmapi");
extern(Windows)
int DwmEnableBlurBehindWindow(
    void* hWnd,   // HWND
    DWM_BLURBEHIND* pBlurBehind   // DWM_BLURBEHIND*
);

ccall((:DwmEnableBlurBehindWindow, "dwmapi.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{DWM_BLURBEHIND}),
      hWnd, pBlurBehind)
# hWnd : HWND -> Ptr{Cvoid}
# pBlurBehind : DWM_BLURBEHIND* -> Ptr{DWM_BLURBEHIND}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t DwmEnableBlurBehindWindow(
    void* hWnd,
    void* pBlurBehind);
]]
local dwmapi = ffi.load("dwmapi")
-- dwmapi.DwmEnableBlurBehindWindow(hWnd, pBlurBehind)
-- hWnd : HWND
-- pBlurBehind : DWM_BLURBEHIND*
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('dwmapi.dll');
const DwmEnableBlurBehindWindow = lib.func('__stdcall', 'DwmEnableBlurBehindWindow', 'int32_t', ['void *', 'void *']);
// DwmEnableBlurBehindWindow(hWnd, pBlurBehind)
// hWnd : HWND -> 'void *'
// pBlurBehind : DWM_BLURBEHIND* -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("dwmapi.dll", {
  DwmEnableBlurBehindWindow: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.DwmEnableBlurBehindWindow(hWnd, pBlurBehind)
// hWnd : HWND -> "pointer"
// pBlurBehind : DWM_BLURBEHIND* -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t DwmEnableBlurBehindWindow(
    void* hWnd,
    void* pBlurBehind);
C, "dwmapi.dll");
// $ffi->DwmEnableBlurBehindWindow(hWnd, pBlurBehind);
// hWnd : HWND
// pBlurBehind : DWM_BLURBEHIND*
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Dwmapi extends StdCallLibrary {
    Dwmapi INSTANCE = Native.load("dwmapi", Dwmapi.class);
    int DwmEnableBlurBehindWindow(
        Pointer hWnd,   // HWND
        Pointer pBlurBehind   // DWM_BLURBEHIND*
    );
}

@[Link("dwmapi")]
lib Libdwmapi
  fun DwmEnableBlurBehindWindow = DwmEnableBlurBehindWindow(
    hWnd : Void*,   # HWND
    pBlurBehind : DWM_BLURBEHIND*   # DWM_BLURBEHIND*
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef DwmEnableBlurBehindWindowNative = Int32 Function(Pointer<Void>, Pointer<Void>);
typedef DwmEnableBlurBehindWindowDart = int Function(Pointer<Void>, Pointer<Void>);
final DwmEnableBlurBehindWindow = DynamicLibrary.open('dwmapi.dll')
    .lookupFunction<DwmEnableBlurBehindWindowNative, DwmEnableBlurBehindWindowDart>('DwmEnableBlurBehindWindow');
// hWnd : HWND -> Pointer<Void>
// pBlurBehind : DWM_BLURBEHIND* -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DwmEnableBlurBehindWindow(
  hWnd: THandle;   // HWND
  pBlurBehind: Pointer   // DWM_BLURBEHIND*
): Integer; stdcall;
  external 'dwmapi.dll' name 'DwmEnableBlurBehindWindow';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "DwmEnableBlurBehindWindow"
  c_DwmEnableBlurBehindWindow :: Ptr () -> Ptr () -> IO Int32
-- hWnd : HWND -> Ptr ()
-- pBlurBehind : DWM_BLURBEHIND* -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let dwmenableblurbehindwindow =
  foreign "DwmEnableBlurBehindWindow"
    ((ptr void) @-> (ptr void) @-> returning int32_t)
(* hWnd : HWND -> (ptr void) *)
(* pBlurBehind : DWM_BLURBEHIND* -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library dwmapi (t "dwmapi.dll"))
(cffi:use-foreign-library dwmapi)

(cffi:defcfun ("DwmEnableBlurBehindWindow" dwm-enable-blur-behind-window :convention :stdcall) :int32
  (h-wnd :pointer)   ; HWND
  (p-blur-behind :pointer))   ; DWM_BLURBEHIND*
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DwmEnableBlurBehindWindow = Win32::API::More->new('dwmapi',
    'int DwmEnableBlurBehindWindow(HANDLE hWnd, LPVOID pBlurBehind)');
# my $ret = $DwmEnableBlurBehindWindow->Call($hWnd, $pBlurBehind);
# hWnd : HWND -> HANDLE
# pBlurBehind : DWM_BLURBEHIND* -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。