D3D11CreateDevice

// d3d11.dll
#include <windows.h>

HRESULT D3D11CreateDevice(
    IDXGIAdapter* pAdapter,   // optional
    D3D_DRIVER_TYPE DriverType,
    HMODULE Software,   // optional
    D3D11_CREATE_DEVICE_FLAG Flags,
    const D3D_FEATURE_LEVEL* pFeatureLevels,   // optional
    DWORD FeatureLevels,
    DWORD SDKVersion,
    ID3D11Device** ppDevice,   // optional
    D3D_FEATURE_LEVEL* pFeatureLevel,   // optional
    ID3D11DeviceContext** ppImmediateContext   // optional
);

<DllImport("d3d11.dll", ExactSpelling:=True)>
Public Shared Function D3D11CreateDevice(
    pAdapter As IntPtr,   ' IDXGIAdapter* optional
    DriverType As Integer,   ' D3D_DRIVER_TYPE
    Software As IntPtr,   ' HMODULE optional
    Flags As UInteger,   ' D3D11_CREATE_DEVICE_FLAG
    pFeatureLevels As IntPtr,   ' D3D_FEATURE_LEVEL* optional
    FeatureLevels As UInteger,   ' DWORD
    SDKVersion As UInteger,   ' DWORD
    ppDevice As IntPtr,   ' ID3D11Device** optional, out
    pFeatureLevel As IntPtr,   ' D3D_FEATURE_LEVEL* optional, out
    ppImmediateContext As IntPtr   ' ID3D11DeviceContext** optional, out
) As Integer
End Function

' pAdapter : IDXGIAdapter* optional
' DriverType : D3D_DRIVER_TYPE
' Software : HMODULE optional
' Flags : D3D11_CREATE_DEVICE_FLAG
' pFeatureLevels : D3D_FEATURE_LEVEL* optional
' FeatureLevels : DWORD
' SDKVersion : DWORD
' ppDevice : ID3D11Device** optional, out
' pFeatureLevel : D3D_FEATURE_LEVEL* optional, out
' ppImmediateContext : ID3D11DeviceContext** optional, out
Declare PtrSafe Function D3D11CreateDevice Lib "d3d11" ( _
    ByVal pAdapter As LongPtr, _
    ByVal DriverType As Long, _
    ByVal Software As LongPtr, _
    ByVal Flags As Long, _
    ByVal pFeatureLevels As LongPtr, _
    ByVal FeatureLevels As Long, _
    ByVal SDKVersion As Long, _
    ByVal ppDevice As LongPtr, _
    ByVal pFeatureLevel As LongPtr, _
    ByVal ppImmediateContext 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

D3D11CreateDevice = ctypes.windll.d3d11.D3D11CreateDevice
D3D11CreateDevice.restype = ctypes.c_int
D3D11CreateDevice.argtypes = [
    ctypes.c_void_p,  # pAdapter : IDXGIAdapter* optional
    ctypes.c_int,  # DriverType : D3D_DRIVER_TYPE
    wintypes.HANDLE,  # Software : HMODULE optional
    wintypes.DWORD,  # Flags : D3D11_CREATE_DEVICE_FLAG
    ctypes.c_void_p,  # pFeatureLevels : D3D_FEATURE_LEVEL* optional
    wintypes.DWORD,  # FeatureLevels : DWORD
    wintypes.DWORD,  # SDKVersion : DWORD
    ctypes.c_void_p,  # ppDevice : ID3D11Device** optional, out
    ctypes.c_void_p,  # pFeatureLevel : D3D_FEATURE_LEVEL* optional, out
    ctypes.c_void_p,  # ppImmediateContext : ID3D11DeviceContext** optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('d3d11.dll')
D3D11CreateDevice = Fiddle::Function.new(
  lib['D3D11CreateDevice'],
  [
    Fiddle::TYPE_VOIDP,  # pAdapter : IDXGIAdapter* optional
    Fiddle::TYPE_INT,  # DriverType : D3D_DRIVER_TYPE
    Fiddle::TYPE_VOIDP,  # Software : HMODULE optional
    -Fiddle::TYPE_INT,  # Flags : D3D11_CREATE_DEVICE_FLAG
    Fiddle::TYPE_VOIDP,  # pFeatureLevels : D3D_FEATURE_LEVEL* optional
    -Fiddle::TYPE_INT,  # FeatureLevels : DWORD
    -Fiddle::TYPE_INT,  # SDKVersion : DWORD
    Fiddle::TYPE_VOIDP,  # ppDevice : ID3D11Device** optional, out
    Fiddle::TYPE_VOIDP,  # pFeatureLevel : D3D_FEATURE_LEVEL* optional, out
    Fiddle::TYPE_VOIDP,  # ppImmediateContext : ID3D11DeviceContext** optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "d3d11")]
extern "system" {
    fn D3D11CreateDevice(
        pAdapter: *mut core::ffi::c_void,  // IDXGIAdapter* optional
        DriverType: i32,  // D3D_DRIVER_TYPE
        Software: *mut core::ffi::c_void,  // HMODULE optional
        Flags: u32,  // D3D11_CREATE_DEVICE_FLAG
        pFeatureLevels: *const i32,  // D3D_FEATURE_LEVEL* optional
        FeatureLevels: u32,  // DWORD
        SDKVersion: u32,  // DWORD
        ppDevice: *mut *mut core::ffi::c_void,  // ID3D11Device** optional, out
        pFeatureLevel: *mut i32,  // D3D_FEATURE_LEVEL* optional, out
        ppImmediateContext: *mut *mut core::ffi::c_void  // ID3D11DeviceContext** optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("d3d11.dll")]
public static extern int D3D11CreateDevice(IntPtr pAdapter, int DriverType, IntPtr Software, uint Flags, IntPtr pFeatureLevels, uint FeatureLevels, uint SDKVersion, IntPtr ppDevice, IntPtr pFeatureLevel, IntPtr ppImmediateContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'd3d11_D3D11CreateDevice' -Namespace Win32 -PassThru
# $api::D3D11CreateDevice(pAdapter, DriverType, Software, Flags, pFeatureLevels, FeatureLevels, SDKVersion, ppDevice, pFeatureLevel, ppImmediateContext)

#uselib "d3d11.dll"
#func global D3D11CreateDevice "D3D11CreateDevice" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; D3D11CreateDevice pAdapter, DriverType, Software, Flags, varptr(pFeatureLevels), FeatureLevels, SDKVersion, ppDevice, varptr(pFeatureLevel), ppImmediateContext   ; 戻り値は stat
; pAdapter : IDXGIAdapter* optional -> "sptr"
; DriverType : D3D_DRIVER_TYPE -> "sptr"
; Software : HMODULE optional -> "sptr"
; Flags : D3D11_CREATE_DEVICE_FLAG -> "sptr"
; pFeatureLevels : D3D_FEATURE_LEVEL* optional -> "sptr"
; FeatureLevels : DWORD -> "sptr"
; SDKVersion : DWORD -> "sptr"
; ppDevice : ID3D11Device** optional, out -> "sptr"
; pFeatureLevel : D3D_FEATURE_LEVEL* optional, out -> "sptr"
; ppImmediateContext : ID3D11DeviceContext** optional, 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 (
	d3d11 = windows.NewLazySystemDLL("d3d11.dll")
	procD3D11CreateDevice = d3d11.NewProc("D3D11CreateDevice")
)

// pAdapter (IDXGIAdapter* optional), DriverType (D3D_DRIVER_TYPE), Software (HMODULE optional), Flags (D3D11_CREATE_DEVICE_FLAG), pFeatureLevels (D3D_FEATURE_LEVEL* optional), FeatureLevels (DWORD), SDKVersion (DWORD), ppDevice (ID3D11Device** optional, out), pFeatureLevel (D3D_FEATURE_LEVEL* optional, out), ppImmediateContext (ID3D11DeviceContext** optional, out)
r1, _, err := procD3D11CreateDevice.Call(
	uintptr(pAdapter),
	uintptr(DriverType),
	uintptr(Software),
	uintptr(Flags),
	uintptr(pFeatureLevels),
	uintptr(FeatureLevels),
	uintptr(SDKVersion),
	uintptr(ppDevice),
	uintptr(pFeatureLevel),
	uintptr(ppImmediateContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function D3D11CreateDevice(
  pAdapter: Pointer;   // IDXGIAdapter* optional
  DriverType: Integer;   // D3D_DRIVER_TYPE
  Software: THandle;   // HMODULE optional
  Flags: DWORD;   // D3D11_CREATE_DEVICE_FLAG
  pFeatureLevels: Pointer;   // D3D_FEATURE_LEVEL* optional
  FeatureLevels: DWORD;   // DWORD
  SDKVersion: DWORD;   // DWORD
  ppDevice: Pointer;   // ID3D11Device** optional, out
  pFeatureLevel: Pointer;   // D3D_FEATURE_LEVEL* optional, out
  ppImmediateContext: Pointer   // ID3D11DeviceContext** optional, out
): Integer; stdcall;
  external 'd3d11.dll' name 'D3D11CreateDevice';

result := DllCall("d3d11\D3D11CreateDevice"
    , "Ptr", pAdapter   ; IDXGIAdapter* optional
    , "Int", DriverType   ; D3D_DRIVER_TYPE
    , "Ptr", Software   ; HMODULE optional
    , "UInt", Flags   ; D3D11_CREATE_DEVICE_FLAG
    , "Ptr", pFeatureLevels   ; D3D_FEATURE_LEVEL* optional
    , "UInt", FeatureLevels   ; DWORD
    , "UInt", SDKVersion   ; DWORD
    , "Ptr", ppDevice   ; ID3D11Device** optional, out
    , "Ptr", pFeatureLevel   ; D3D_FEATURE_LEVEL* optional, out
    , "Ptr", ppImmediateContext   ; ID3D11DeviceContext** optional, out
    , "Int")   ; return: HRESULT

●D3D11CreateDevice(pAdapter, DriverType, Software, Flags, pFeatureLevels, FeatureLevels, SDKVersion, ppDevice, pFeatureLevel, ppImmediateContext) = DLL("d3d11.dll", "int D3D11CreateDevice(void*, int, void*, dword, void*, dword, dword, void*, void*, void*)")
# 呼び出し: D3D11CreateDevice(pAdapter, DriverType, Software, Flags, pFeatureLevels, FeatureLevels, SDKVersion, ppDevice, pFeatureLevel, ppImmediateContext)
# pAdapter : IDXGIAdapter* optional -> "void*"
# DriverType : D3D_DRIVER_TYPE -> "int"
# Software : HMODULE optional -> "void*"
# Flags : D3D11_CREATE_DEVICE_FLAG -> "dword"
# pFeatureLevels : D3D_FEATURE_LEVEL* optional -> "void*"
# FeatureLevels : DWORD -> "dword"
# SDKVersion : DWORD -> "dword"
# ppDevice : ID3D11Device** optional, out -> "void*"
# pFeatureLevel : D3D_FEATURE_LEVEL* optional, out -> "void*"
# ppImmediateContext : ID3D11DeviceContext** optional, 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 "d3d11" fn D3D11CreateDevice(
    pAdapter: ?*anyopaque, // IDXGIAdapter* optional
    DriverType: i32, // D3D_DRIVER_TYPE
    Software: ?*anyopaque, // HMODULE optional
    Flags: u32, // D3D11_CREATE_DEVICE_FLAG
    pFeatureLevels: [*c]i32, // D3D_FEATURE_LEVEL* optional
    FeatureLevels: u32, // DWORD
    SDKVersion: u32, // DWORD
    ppDevice: ?*anyopaque, // ID3D11Device** optional, out
    pFeatureLevel: [*c]i32, // D3D_FEATURE_LEVEL* optional, out
    ppImmediateContext: ?*anyopaque // ID3D11DeviceContext** optional, out
) callconv(std.os.windows.WINAPI) i32;

proc D3D11CreateDevice(
    pAdapter: pointer,  # IDXGIAdapter* optional
    DriverType: int32,  # D3D_DRIVER_TYPE
    Software: pointer,  # HMODULE optional
    Flags: uint32,  # D3D11_CREATE_DEVICE_FLAG
    pFeatureLevels: ptr int32,  # D3D_FEATURE_LEVEL* optional
    FeatureLevels: uint32,  # DWORD
    SDKVersion: uint32,  # DWORD
    ppDevice: pointer,  # ID3D11Device** optional, out
    pFeatureLevel: ptr int32,  # D3D_FEATURE_LEVEL* optional, out
    ppImmediateContext: pointer  # ID3D11DeviceContext** optional, out
): int32 {.importc: "D3D11CreateDevice", stdcall, dynlib: "d3d11.dll".}

pragma(lib, "d3d11");
extern(Windows)
int D3D11CreateDevice(
    void* pAdapter,   // IDXGIAdapter* optional
    int DriverType,   // D3D_DRIVER_TYPE
    void* Software,   // HMODULE optional
    uint Flags,   // D3D11_CREATE_DEVICE_FLAG
    int* pFeatureLevels,   // D3D_FEATURE_LEVEL* optional
    uint FeatureLevels,   // DWORD
    uint SDKVersion,   // DWORD
    void* ppDevice,   // ID3D11Device** optional, out
    int* pFeatureLevel,   // D3D_FEATURE_LEVEL* optional, out
    void* ppImmediateContext   // ID3D11DeviceContext** optional, out
);

ccall((:D3D11CreateDevice, "d3d11.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Int32, Ptr{Cvoid}, UInt32, Ptr{Int32}, UInt32, UInt32, Ptr{Cvoid}, Ptr{Int32}, Ptr{Cvoid}),
      pAdapter, DriverType, Software, Flags, pFeatureLevels, FeatureLevels, SDKVersion, ppDevice, pFeatureLevel, ppImmediateContext)
# pAdapter : IDXGIAdapter* optional -> Ptr{Cvoid}
# DriverType : D3D_DRIVER_TYPE -> Int32
# Software : HMODULE optional -> Ptr{Cvoid}
# Flags : D3D11_CREATE_DEVICE_FLAG -> UInt32
# pFeatureLevels : D3D_FEATURE_LEVEL* optional -> Ptr{Int32}
# FeatureLevels : DWORD -> UInt32
# SDKVersion : DWORD -> UInt32
# ppDevice : ID3D11Device** optional, out -> Ptr{Cvoid}
# pFeatureLevel : D3D_FEATURE_LEVEL* optional, out -> Ptr{Int32}
# ppImmediateContext : ID3D11DeviceContext** optional, 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 D3D11CreateDevice(
    void* pAdapter,
    int32_t DriverType,
    void* Software,
    uint32_t Flags,
    int32_t* pFeatureLevels,
    uint32_t FeatureLevels,
    uint32_t SDKVersion,
    void* ppDevice,
    int32_t* pFeatureLevel,
    void* ppImmediateContext);
]]
local d3d11 = ffi.load("d3d11")
-- d3d11.D3D11CreateDevice(pAdapter, DriverType, Software, Flags, pFeatureLevels, FeatureLevels, SDKVersion, ppDevice, pFeatureLevel, ppImmediateContext)
-- pAdapter : IDXGIAdapter* optional
-- DriverType : D3D_DRIVER_TYPE
-- Software : HMODULE optional
-- Flags : D3D11_CREATE_DEVICE_FLAG
-- pFeatureLevels : D3D_FEATURE_LEVEL* optional
-- FeatureLevels : DWORD
-- SDKVersion : DWORD
-- ppDevice : ID3D11Device** optional, out
-- pFeatureLevel : D3D_FEATURE_LEVEL* optional, out
-- ppImmediateContext : ID3D11DeviceContext** optional, 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('d3d11.dll');
const D3D11CreateDevice = lib.func('__stdcall', 'D3D11CreateDevice', 'int32_t', ['void *', 'int32_t', 'void *', 'uint32_t', 'int32_t *', 'uint32_t', 'uint32_t', 'void *', 'int32_t *', 'void *']);
// D3D11CreateDevice(pAdapter, DriverType, Software, Flags, pFeatureLevels, FeatureLevels, SDKVersion, ppDevice, pFeatureLevel, ppImmediateContext)
// pAdapter : IDXGIAdapter* optional -> 'void *'
// DriverType : D3D_DRIVER_TYPE -> 'int32_t'
// Software : HMODULE optional -> 'void *'
// Flags : D3D11_CREATE_DEVICE_FLAG -> 'uint32_t'
// pFeatureLevels : D3D_FEATURE_LEVEL* optional -> 'int32_t *'
// FeatureLevels : DWORD -> 'uint32_t'
// SDKVersion : DWORD -> 'uint32_t'
// ppDevice : ID3D11Device** optional, out -> 'void *'
// pFeatureLevel : D3D_FEATURE_LEVEL* optional, out -> 'int32_t *'
// ppImmediateContext : ID3D11DeviceContext** optional, 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("d3d11.dll", {
  D3D11CreateDevice: { parameters: ["pointer", "i32", "pointer", "u32", "pointer", "u32", "u32", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.D3D11CreateDevice(pAdapter, DriverType, Software, Flags, pFeatureLevels, FeatureLevels, SDKVersion, ppDevice, pFeatureLevel, ppImmediateContext)
// pAdapter : IDXGIAdapter* optional -> "pointer"
// DriverType : D3D_DRIVER_TYPE -> "i32"
// Software : HMODULE optional -> "pointer"
// Flags : D3D11_CREATE_DEVICE_FLAG -> "u32"
// pFeatureLevels : D3D_FEATURE_LEVEL* optional -> "pointer"
// FeatureLevels : DWORD -> "u32"
// SDKVersion : DWORD -> "u32"
// ppDevice : ID3D11Device** optional, out -> "pointer"
// pFeatureLevel : D3D_FEATURE_LEVEL* optional, out -> "pointer"
// ppImmediateContext : ID3D11DeviceContext** optional, 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 D3D11CreateDevice(
    void* pAdapter,
    int32_t DriverType,
    void* Software,
    uint32_t Flags,
    int32_t* pFeatureLevels,
    uint32_t FeatureLevels,
    uint32_t SDKVersion,
    void* ppDevice,
    int32_t* pFeatureLevel,
    void* ppImmediateContext);
C, "d3d11.dll");
// $ffi->D3D11CreateDevice(pAdapter, DriverType, Software, Flags, pFeatureLevels, FeatureLevels, SDKVersion, ppDevice, pFeatureLevel, ppImmediateContext);
// pAdapter : IDXGIAdapter* optional
// DriverType : D3D_DRIVER_TYPE
// Software : HMODULE optional
// Flags : D3D11_CREATE_DEVICE_FLAG
// pFeatureLevels : D3D_FEATURE_LEVEL* optional
// FeatureLevels : DWORD
// SDKVersion : DWORD
// ppDevice : ID3D11Device** optional, out
// pFeatureLevel : D3D_FEATURE_LEVEL* optional, out
// ppImmediateContext : ID3D11DeviceContext** optional, 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 D3d11 extends StdCallLibrary {
    D3d11 INSTANCE = Native.load("d3d11", D3d11.class);
    int D3D11CreateDevice(
        Pointer pAdapter,   // IDXGIAdapter* optional
        int DriverType,   // D3D_DRIVER_TYPE
        Pointer Software,   // HMODULE optional
        int Flags,   // D3D11_CREATE_DEVICE_FLAG
        IntByReference pFeatureLevels,   // D3D_FEATURE_LEVEL* optional
        int FeatureLevels,   // DWORD
        int SDKVersion,   // DWORD
        Pointer ppDevice,   // ID3D11Device** optional, out
        IntByReference pFeatureLevel,   // D3D_FEATURE_LEVEL* optional, out
        Pointer ppImmediateContext   // ID3D11DeviceContext** optional, out
    );
}

@[Link("d3d11")]
lib Libd3d11
  fun D3D11CreateDevice = D3D11CreateDevice(
    pAdapter : Void*,   # IDXGIAdapter* optional
    DriverType : Int32,   # D3D_DRIVER_TYPE
    Software : Void*,   # HMODULE optional
    Flags : UInt32,   # D3D11_CREATE_DEVICE_FLAG
    pFeatureLevels : Int32*,   # D3D_FEATURE_LEVEL* optional
    FeatureLevels : UInt32,   # DWORD
    SDKVersion : UInt32,   # DWORD
    ppDevice : Void*,   # ID3D11Device** optional, out
    pFeatureLevel : Int32*,   # D3D_FEATURE_LEVEL* optional, out
    ppImmediateContext : Void*   # ID3D11DeviceContext** optional, 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 D3D11CreateDeviceNative = Int32 Function(Pointer<Void>, Int32, Pointer<Void>, Uint32, Pointer<Int32>, Uint32, Uint32, Pointer<Void>, Pointer<Int32>, Pointer<Void>);
typedef D3D11CreateDeviceDart = int Function(Pointer<Void>, int, Pointer<Void>, int, Pointer<Int32>, int, int, Pointer<Void>, Pointer<Int32>, Pointer<Void>);
final D3D11CreateDevice = DynamicLibrary.open('d3d11.dll')
    .lookupFunction<D3D11CreateDeviceNative, D3D11CreateDeviceDart>('D3D11CreateDevice');
// pAdapter : IDXGIAdapter* optional -> Pointer<Void>
// DriverType : D3D_DRIVER_TYPE -> Int32
// Software : HMODULE optional -> Pointer<Void>
// Flags : D3D11_CREATE_DEVICE_FLAG -> Uint32
// pFeatureLevels : D3D_FEATURE_LEVEL* optional -> Pointer<Int32>
// FeatureLevels : DWORD -> Uint32
// SDKVersion : DWORD -> Uint32
// ppDevice : ID3D11Device** optional, out -> Pointer<Void>
// pFeatureLevel : D3D_FEATURE_LEVEL* optional, out -> Pointer<Int32>
// ppImmediateContext : ID3D11DeviceContext** optional, out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function D3D11CreateDevice(
  pAdapter: Pointer;   // IDXGIAdapter* optional
  DriverType: Integer;   // D3D_DRIVER_TYPE
  Software: THandle;   // HMODULE optional
  Flags: DWORD;   // D3D11_CREATE_DEVICE_FLAG
  pFeatureLevels: Pointer;   // D3D_FEATURE_LEVEL* optional
  FeatureLevels: DWORD;   // DWORD
  SDKVersion: DWORD;   // DWORD
  ppDevice: Pointer;   // ID3D11Device** optional, out
  pFeatureLevel: Pointer;   // D3D_FEATURE_LEVEL* optional, out
  ppImmediateContext: Pointer   // ID3D11DeviceContext** optional, out
): Integer; stdcall;
  external 'd3d11.dll' name 'D3D11CreateDevice';

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

foreign import stdcall safe "D3D11CreateDevice"
  c_D3D11CreateDevice :: Ptr () -> Int32 -> Ptr () -> Word32 -> Ptr Int32 -> Word32 -> Word32 -> Ptr () -> Ptr Int32 -> Ptr () -> IO Int32
-- pAdapter : IDXGIAdapter* optional -> Ptr ()
-- DriverType : D3D_DRIVER_TYPE -> Int32
-- Software : HMODULE optional -> Ptr ()
-- Flags : D3D11_CREATE_DEVICE_FLAG -> Word32
-- pFeatureLevels : D3D_FEATURE_LEVEL* optional -> Ptr Int32
-- FeatureLevels : DWORD -> Word32
-- SDKVersion : DWORD -> Word32
-- ppDevice : ID3D11Device** optional, out -> Ptr ()
-- pFeatureLevel : D3D_FEATURE_LEVEL* optional, out -> Ptr Int32
-- ppImmediateContext : ID3D11DeviceContext** optional, 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 d3d11createdevice =
  foreign "D3D11CreateDevice"
    ((ptr void) @-> int32_t @-> (ptr void) @-> uint32_t @-> (ptr int32_t) @-> uint32_t @-> uint32_t @-> (ptr void) @-> (ptr int32_t) @-> (ptr void) @-> returning int32_t)
(* pAdapter : IDXGIAdapter* optional -> (ptr void) *)
(* DriverType : D3D_DRIVER_TYPE -> int32_t *)
(* Software : HMODULE optional -> (ptr void) *)
(* Flags : D3D11_CREATE_DEVICE_FLAG -> uint32_t *)
(* pFeatureLevels : D3D_FEATURE_LEVEL* optional -> (ptr int32_t) *)
(* FeatureLevels : DWORD -> uint32_t *)
(* SDKVersion : DWORD -> uint32_t *)
(* ppDevice : ID3D11Device** optional, out -> (ptr void) *)
(* pFeatureLevel : D3D_FEATURE_LEVEL* optional, out -> (ptr int32_t) *)
(* ppImmediateContext : ID3D11DeviceContext** optional, 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 d3d11 (t "d3d11.dll"))
(cffi:use-foreign-library d3d11)

(cffi:defcfun ("D3D11CreateDevice" d3-d11-create-device :convention :stdcall) :int32
  (p-adapter :pointer)   ; IDXGIAdapter* optional
  (driver-type :int32)   ; D3D_DRIVER_TYPE
  (software :pointer)   ; HMODULE optional
  (flags :uint32)   ; D3D11_CREATE_DEVICE_FLAG
  (p-feature-levels :pointer)   ; D3D_FEATURE_LEVEL* optional
  (feature-levels :uint32)   ; DWORD
  (sdkversion :uint32)   ; DWORD
  (pp-device :pointer)   ; ID3D11Device** optional, out
  (p-feature-level :pointer)   ; D3D_FEATURE_LEVEL* optional, out
  (pp-immediate-context :pointer))   ; ID3D11DeviceContext** optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $D3D11CreateDevice = Win32::API::More->new('d3d11',
    'int D3D11CreateDevice(LPVOID pAdapter, int DriverType, HANDLE Software, DWORD Flags, LPVOID pFeatureLevels, DWORD FeatureLevels, DWORD SDKVersion, LPVOID ppDevice, LPVOID pFeatureLevel, LPVOID ppImmediateContext)');
# my $ret = $D3D11CreateDevice->Call($pAdapter, $DriverType, $Software, $Flags, $pFeatureLevels, $FeatureLevels, $SDKVersion, $ppDevice, $pFeatureLevel, $ppImmediateContext);
# pAdapter : IDXGIAdapter* optional -> LPVOID
# DriverType : D3D_DRIVER_TYPE -> int
# Software : HMODULE optional -> HANDLE
# Flags : D3D11_CREATE_DEVICE_FLAG -> DWORD
# pFeatureLevels : D3D_FEATURE_LEVEL* optional -> LPVOID
# FeatureLevels : DWORD -> DWORD
# SDKVersion : DWORD -> DWORD
# ppDevice : ID3D11Device** optional, out -> LPVOID
# pFeatureLevel : D3D_FEATURE_LEVEL* optional, out -> LPVOID
# ppImmediateContext : ID3D11DeviceContext** optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。