AccessibleObjectFromWindow

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

HRESULT AccessibleObjectFromWindow(
    HWND hwnd,
    DWORD dwId,
    const GUID* riid,
    void** ppvObject
);

<DllImport("OLEACC.dll", ExactSpelling:=True)>
Public Shared Function AccessibleObjectFromWindow(
    hwnd As IntPtr,   ' HWND
    dwId As UInteger,   ' DWORD
    ByRef riid As Guid,   ' GUID*
    ppvObject As IntPtr   ' void** out
) As Integer
End Function

' hwnd : HWND
' dwId : DWORD
' riid : GUID*
' ppvObject : void** out
Declare PtrSafe Function AccessibleObjectFromWindow Lib "oleacc" ( _
    ByVal hwnd As LongPtr, _
    ByVal dwId As Long, _
    ByVal riid As LongPtr, _
    ByVal ppvObject 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

AccessibleObjectFromWindow = ctypes.windll.oleacc.AccessibleObjectFromWindow
AccessibleObjectFromWindow.restype = ctypes.c_int
AccessibleObjectFromWindow.argtypes = [
    wintypes.HANDLE,  # hwnd : HWND
    wintypes.DWORD,  # dwId : DWORD
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # ppvObject : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEACC.dll')
AccessibleObjectFromWindow = Fiddle::Function.new(
  lib['AccessibleObjectFromWindow'],
  [
    Fiddle::TYPE_VOIDP,  # hwnd : HWND
    -Fiddle::TYPE_INT,  # dwId : DWORD
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # ppvObject : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleacc")]
extern "system" {
    fn AccessibleObjectFromWindow(
        hwnd: *mut core::ffi::c_void,  // HWND
        dwId: u32,  // DWORD
        riid: *const GUID,  // GUID*
        ppvObject: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEACC.dll")]
public static extern int AccessibleObjectFromWindow(IntPtr hwnd, uint dwId, ref Guid riid, IntPtr ppvObject);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEACC_AccessibleObjectFromWindow' -Namespace Win32 -PassThru
# $api::AccessibleObjectFromWindow(hwnd, dwId, riid, ppvObject)

#uselib "OLEACC.dll"
#func global AccessibleObjectFromWindow "AccessibleObjectFromWindow" sptr, sptr, sptr, sptr
; AccessibleObjectFromWindow hwnd, dwId, varptr(riid), ppvObject   ; 戻り値は stat
; hwnd : HWND -> "sptr"
; dwId : DWORD -> "sptr"
; riid : GUID* -> "sptr"
; ppvObject : void** 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。

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

var (
	oleacc = windows.NewLazySystemDLL("OLEACC.dll")
	procAccessibleObjectFromWindow = oleacc.NewProc("AccessibleObjectFromWindow")
)

// hwnd (HWND), dwId (DWORD), riid (GUID*), ppvObject (void** out)
r1, _, err := procAccessibleObjectFromWindow.Call(
	uintptr(hwnd),
	uintptr(dwId),
	uintptr(riid),
	uintptr(ppvObject),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function AccessibleObjectFromWindow(
  hwnd: THandle;   // HWND
  dwId: DWORD;   // DWORD
  riid: PGUID;   // GUID*
  ppvObject: Pointer   // void** out
): Integer; stdcall;
  external 'OLEACC.dll' name 'AccessibleObjectFromWindow';

result := DllCall("OLEACC\AccessibleObjectFromWindow"
    , "Ptr", hwnd   ; HWND
    , "UInt", dwId   ; DWORD
    , "Ptr", riid   ; GUID*
    , "Ptr", ppvObject   ; void** out
    , "Int")   ; return: HRESULT

●AccessibleObjectFromWindow(hwnd, dwId, riid, ppvObject) = DLL("OLEACC.dll", "int AccessibleObjectFromWindow(void*, dword, void*, void*)")
# 呼び出し: AccessibleObjectFromWindow(hwnd, dwId, riid, ppvObject)
# hwnd : HWND -> "void*"
# dwId : DWORD -> "dword"
# riid : GUID* -> "void*"
# ppvObject : void** 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)。

const std = @import("std");

extern "oleacc" fn AccessibleObjectFromWindow(
    hwnd: ?*anyopaque, // HWND
    dwId: u32, // DWORD
    riid: [*c]GUID, // GUID*
    ppvObject: ?*anyopaque // void** out
) callconv(std.os.windows.WINAPI) i32;

proc AccessibleObjectFromWindow(
    hwnd: pointer,  # HWND
    dwId: uint32,  # DWORD
    riid: ptr GUID,  # GUID*
    ppvObject: pointer  # void** out
): int32 {.importc: "AccessibleObjectFromWindow", stdcall, dynlib: "OLEACC.dll".}

pragma(lib, "oleacc");
extern(Windows)
int AccessibleObjectFromWindow(
    void* hwnd,   // HWND
    uint dwId,   // DWORD
    GUID* riid,   // GUID*
    void** ppvObject   // void** out
);

ccall((:AccessibleObjectFromWindow, "OLEACC.dll"), stdcall, Int32,
      (Ptr{Cvoid}, UInt32, Ptr{GUID}, Ptr{Cvoid}),
      hwnd, dwId, riid, ppvObject)
# hwnd : HWND -> Ptr{Cvoid}
# dwId : DWORD -> UInt32
# riid : GUID* -> Ptr{GUID}
# ppvObject : void** out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t AccessibleObjectFromWindow(
    void* hwnd,
    uint32_t dwId,
    void* riid,
    void** ppvObject);
]]
local oleacc = ffi.load("oleacc")
-- oleacc.AccessibleObjectFromWindow(hwnd, dwId, riid, ppvObject)
-- hwnd : HWND
-- dwId : DWORD
-- riid : GUID*
-- ppvObject : void** out
-- 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('OLEACC.dll');
const AccessibleObjectFromWindow = lib.func('__stdcall', 'AccessibleObjectFromWindow', 'int32_t', ['void *', 'uint32_t', 'void *', 'void *']);
// AccessibleObjectFromWindow(hwnd, dwId, riid, ppvObject)
// hwnd : HWND -> 'void *'
// dwId : DWORD -> 'uint32_t'
// riid : GUID* -> 'void *'
// ppvObject : void** out -> '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("OLEACC.dll", {
  AccessibleObjectFromWindow: { parameters: ["pointer", "u32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.AccessibleObjectFromWindow(hwnd, dwId, riid, ppvObject)
// hwnd : HWND -> "pointer"
// dwId : DWORD -> "u32"
// riid : GUID* -> "pointer"
// ppvObject : void** out -> "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 AccessibleObjectFromWindow(
    void* hwnd,
    uint32_t dwId,
    void* riid,
    void** ppvObject);
C, "OLEACC.dll");
// $ffi->AccessibleObjectFromWindow(hwnd, dwId, riid, ppvObject);
// hwnd : HWND
// dwId : DWORD
// riid : GUID*
// ppvObject : void** out
// 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 Oleacc extends StdCallLibrary {
    Oleacc INSTANCE = Native.load("oleacc", Oleacc.class);
    int AccessibleObjectFromWindow(
        Pointer hwnd,   // HWND
        int dwId,   // DWORD
        Pointer riid,   // GUID*
        Pointer ppvObject   // void** out
    );
}

@[Link("oleacc")]
lib LibOLEACC
  fun AccessibleObjectFromWindow = AccessibleObjectFromWindow(
    hwnd : Void*,   # HWND
    dwId : UInt32,   # DWORD
    riid : GUID*,   # GUID*
    ppvObject : Void**   # void** out
  ) : 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 AccessibleObjectFromWindowNative = Int32 Function(Pointer<Void>, Uint32, Pointer<Void>, Pointer<Void>);
typedef AccessibleObjectFromWindowDart = int Function(Pointer<Void>, int, Pointer<Void>, Pointer<Void>);
final AccessibleObjectFromWindow = DynamicLibrary.open('OLEACC.dll')
    .lookupFunction<AccessibleObjectFromWindowNative, AccessibleObjectFromWindowDart>('AccessibleObjectFromWindow');
// hwnd : HWND -> Pointer<Void>
// dwId : DWORD -> Uint32
// riid : GUID* -> Pointer<Void>
// ppvObject : void** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function AccessibleObjectFromWindow(
  hwnd: THandle;   // HWND
  dwId: DWORD;   // DWORD
  riid: PGUID;   // GUID*
  ppvObject: Pointer   // void** out
): Integer; stdcall;
  external 'OLEACC.dll' name 'AccessibleObjectFromWindow';

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

foreign import stdcall safe "AccessibleObjectFromWindow"
  c_AccessibleObjectFromWindow :: Ptr () -> Word32 -> Ptr () -> Ptr () -> IO Int32
-- hwnd : HWND -> Ptr ()
-- dwId : DWORD -> Word32
-- riid : GUID* -> Ptr ()
-- ppvObject : void** out -> 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 accessibleobjectfromwindow =
  foreign "AccessibleObjectFromWindow"
    ((ptr void) @-> uint32_t @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* hwnd : HWND -> (ptr void) *)
(* dwId : DWORD -> uint32_t *)
(* riid : GUID* -> (ptr void) *)
(* ppvObject : void** out -> (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 oleacc (t "OLEACC.dll"))
(cffi:use-foreign-library oleacc)

(cffi:defcfun ("AccessibleObjectFromWindow" accessible-object-from-window :convention :stdcall) :int32
  (hwnd :pointer)   ; HWND
  (dw-id :uint32)   ; DWORD
  (riid :pointer)   ; GUID*
  (ppv-object :pointer))   ; void** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $AccessibleObjectFromWindow = Win32::API::More->new('OLEACC',
    'int AccessibleObjectFromWindow(HANDLE hwnd, DWORD dwId, LPVOID riid, LPVOID ppvObject)');
# my $ret = $AccessibleObjectFromWindow->Call($hwnd, $dwId, $riid, $ppvObject);
# hwnd : HWND -> HANDLE
# dwId : DWORD -> DWORD
# riid : GUID* -> LPVOID
# ppvObject : void** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。