GetNumberOfPhysicalMonitorsFromIDirect3DDevice9

// dxva2.dll
#include <windows.h>

HRESULT GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
    IDirect3DDevice9* pDirect3DDevice9,
    DWORD* pdwNumberOfPhysicalMonitors
);

<DllImport("dxva2.dll", ExactSpelling:=True)>
Public Shared Function GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
    pDirect3DDevice9 As IntPtr,   ' IDirect3DDevice9*
    <Out> ByRef pdwNumberOfPhysicalMonitors As UInteger   ' DWORD* out
) As Integer
End Function

' pDirect3DDevice9 : IDirect3DDevice9*
' pdwNumberOfPhysicalMonitors : DWORD* out
Declare PtrSafe Function GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 Lib "dxva2" ( _
    ByVal pDirect3DDevice9 As LongPtr, _
    ByRef pdwNumberOfPhysicalMonitors 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

GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 = ctypes.windll.dxva2.GetNumberOfPhysicalMonitorsFromIDirect3DDevice9
GetNumberOfPhysicalMonitorsFromIDirect3DDevice9.restype = ctypes.c_int
GetNumberOfPhysicalMonitorsFromIDirect3DDevice9.argtypes = [
    ctypes.c_void_p,  # pDirect3DDevice9 : IDirect3DDevice9*
    ctypes.POINTER(wintypes.DWORD),  # pdwNumberOfPhysicalMonitors : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dxva2.dll')
GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 = Fiddle::Function.new(
  lib['GetNumberOfPhysicalMonitorsFromIDirect3DDevice9'],
  [
    Fiddle::TYPE_VOIDP,  # pDirect3DDevice9 : IDirect3DDevice9*
    Fiddle::TYPE_VOIDP,  # pdwNumberOfPhysicalMonitors : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dxva2")]
extern "system" {
    fn GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
        pDirect3DDevice9: *mut core::ffi::c_void,  // IDirect3DDevice9*
        pdwNumberOfPhysicalMonitors: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dxva2.dll")]
public static extern int GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(IntPtr pDirect3DDevice9, out uint pdwNumberOfPhysicalMonitors);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dxva2_GetNumberOfPhysicalMonitorsFromIDirect3DDevice9' -Namespace Win32 -PassThru
# $api::GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(pDirect3DDevice9, pdwNumberOfPhysicalMonitors)

#uselib "dxva2.dll"
#func global GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 "GetNumberOfPhysicalMonitorsFromIDirect3DDevice9" sptr, sptr
; GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 pDirect3DDevice9, varptr(pdwNumberOfPhysicalMonitors)   ; 戻り値は stat
; pDirect3DDevice9 : IDirect3DDevice9* -> "sptr"
; pdwNumberOfPhysicalMonitors : DWORD* 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 (
	dxva2 = windows.NewLazySystemDLL("dxva2.dll")
	procGetNumberOfPhysicalMonitorsFromIDirect3DDevice9 = dxva2.NewProc("GetNumberOfPhysicalMonitorsFromIDirect3DDevice9")
)

// pDirect3DDevice9 (IDirect3DDevice9*), pdwNumberOfPhysicalMonitors (DWORD* out)
r1, _, err := procGetNumberOfPhysicalMonitorsFromIDirect3DDevice9.Call(
	uintptr(pDirect3DDevice9),
	uintptr(pdwNumberOfPhysicalMonitors),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
  pDirect3DDevice9: Pointer;   // IDirect3DDevice9*
  pdwNumberOfPhysicalMonitors: Pointer   // DWORD* out
): Integer; stdcall;
  external 'dxva2.dll' name 'GetNumberOfPhysicalMonitorsFromIDirect3DDevice9';

result := DllCall("dxva2\GetNumberOfPhysicalMonitorsFromIDirect3DDevice9"
    , "Ptr", pDirect3DDevice9   ; IDirect3DDevice9*
    , "Ptr", pdwNumberOfPhysicalMonitors   ; DWORD* out
    , "Int")   ; return: HRESULT

●GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(pDirect3DDevice9, pdwNumberOfPhysicalMonitors) = DLL("dxva2.dll", "int GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(void*, void*)")
# 呼び出し: GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(pDirect3DDevice9, pdwNumberOfPhysicalMonitors)
# pDirect3DDevice9 : IDirect3DDevice9* -> "void*"
# pdwNumberOfPhysicalMonitors : DWORD* 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 "dxva2" fn GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
    pDirect3DDevice9: ?*anyopaque, // IDirect3DDevice9*
    pdwNumberOfPhysicalMonitors: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) i32;

proc GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
    pDirect3DDevice9: pointer,  # IDirect3DDevice9*
    pdwNumberOfPhysicalMonitors: ptr uint32  # DWORD* out
): int32 {.importc: "GetNumberOfPhysicalMonitorsFromIDirect3DDevice9", stdcall, dynlib: "dxva2.dll".}

pragma(lib, "dxva2");
extern(Windows)
int GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
    void* pDirect3DDevice9,   // IDirect3DDevice9*
    uint* pdwNumberOfPhysicalMonitors   // DWORD* out
);

ccall((:GetNumberOfPhysicalMonitorsFromIDirect3DDevice9, "dxva2.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{UInt32}),
      pDirect3DDevice9, pdwNumberOfPhysicalMonitors)
# pDirect3DDevice9 : IDirect3DDevice9* -> Ptr{Cvoid}
# pdwNumberOfPhysicalMonitors : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
    void* pDirect3DDevice9,
    uint32_t* pdwNumberOfPhysicalMonitors);
]]
local dxva2 = ffi.load("dxva2")
-- dxva2.GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(pDirect3DDevice9, pdwNumberOfPhysicalMonitors)
-- pDirect3DDevice9 : IDirect3DDevice9*
-- pdwNumberOfPhysicalMonitors : DWORD* 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('dxva2.dll');
const GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 = lib.func('__stdcall', 'GetNumberOfPhysicalMonitorsFromIDirect3DDevice9', 'int32_t', ['void *', 'uint32_t *']);
// GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(pDirect3DDevice9, pdwNumberOfPhysicalMonitors)
// pDirect3DDevice9 : IDirect3DDevice9* -> 'void *'
// pdwNumberOfPhysicalMonitors : DWORD* out -> 'uint32_t *'
// 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("dxva2.dll", {
  GetNumberOfPhysicalMonitorsFromIDirect3DDevice9: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(pDirect3DDevice9, pdwNumberOfPhysicalMonitors)
// pDirect3DDevice9 : IDirect3DDevice9* -> "pointer"
// pdwNumberOfPhysicalMonitors : DWORD* 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 GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
    void* pDirect3DDevice9,
    uint32_t* pdwNumberOfPhysicalMonitors);
C, "dxva2.dll");
// $ffi->GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(pDirect3DDevice9, pdwNumberOfPhysicalMonitors);
// pDirect3DDevice9 : IDirect3DDevice9*
// pdwNumberOfPhysicalMonitors : DWORD* 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 Dxva2 extends StdCallLibrary {
    Dxva2 INSTANCE = Native.load("dxva2", Dxva2.class);
    int GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
        Pointer pDirect3DDevice9,   // IDirect3DDevice9*
        IntByReference pdwNumberOfPhysicalMonitors   // DWORD* out
    );
}

@[Link("dxva2")]
lib Libdxva2
  fun GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 = GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
    pDirect3DDevice9 : Void*,   # IDirect3DDevice9*
    pdwNumberOfPhysicalMonitors : UInt32*   # DWORD* 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 GetNumberOfPhysicalMonitorsFromIDirect3DDevice9Native = Int32 Function(Pointer<Void>, Pointer<Uint32>);
typedef GetNumberOfPhysicalMonitorsFromIDirect3DDevice9Dart = int Function(Pointer<Void>, Pointer<Uint32>);
final GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 = DynamicLibrary.open('dxva2.dll')
    .lookupFunction<GetNumberOfPhysicalMonitorsFromIDirect3DDevice9Native, GetNumberOfPhysicalMonitorsFromIDirect3DDevice9Dart>('GetNumberOfPhysicalMonitorsFromIDirect3DDevice9');
// pDirect3DDevice9 : IDirect3DDevice9* -> Pointer<Void>
// pdwNumberOfPhysicalMonitors : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(
  pDirect3DDevice9: Pointer;   // IDirect3DDevice9*
  pdwNumberOfPhysicalMonitors: Pointer   // DWORD* out
): Integer; stdcall;
  external 'dxva2.dll' name 'GetNumberOfPhysicalMonitorsFromIDirect3DDevice9';

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

foreign import stdcall safe "GetNumberOfPhysicalMonitorsFromIDirect3DDevice9"
  c_GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 :: Ptr () -> Ptr Word32 -> IO Int32
-- pDirect3DDevice9 : IDirect3DDevice9* -> Ptr ()
-- pdwNumberOfPhysicalMonitors : DWORD* out -> Ptr Word32
-- 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 getnumberofphysicalmonitorsfromidirect3ddevice9 =
  foreign "GetNumberOfPhysicalMonitorsFromIDirect3DDevice9"
    ((ptr void) @-> (ptr uint32_t) @-> returning int32_t)
(* pDirect3DDevice9 : IDirect3DDevice9* -> (ptr void) *)
(* pdwNumberOfPhysicalMonitors : DWORD* out -> (ptr uint32_t) *)
(* 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 dxva2 (t "dxva2.dll"))
(cffi:use-foreign-library dxva2)

(cffi:defcfun ("GetNumberOfPhysicalMonitorsFromIDirect3DDevice9" get-number-of-physical-monitors-from-idirect3-ddevice9 :convention :stdcall) :int32
  (p-direct3-ddevice9 :pointer)   ; IDirect3DDevice9*
  (pdw-number-of-physical-monitors :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetNumberOfPhysicalMonitorsFromIDirect3DDevice9 = Win32::API::More->new('dxva2',
    'int GetNumberOfPhysicalMonitorsFromIDirect3DDevice9(LPVOID pDirect3DDevice9, LPVOID pdwNumberOfPhysicalMonitors)');
# my $ret = $GetNumberOfPhysicalMonitorsFromIDirect3DDevice9->Call($pDirect3DDevice9, $pdwNumberOfPhysicalMonitors);
# pDirect3DDevice9 : IDirect3DDevice9* -> LPVOID
# pdwNumberOfPhysicalMonitors : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。