DirectSoundFullDuplexCreate

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

HRESULT DirectSoundFullDuplexCreate(
    const GUID* pcGuidCaptureDevice,   // optional
    const GUID* pcGuidRenderDevice,   // optional
    DSCBUFFERDESC* pcDSCBufferDesc,
    DSBUFFERDESC* pcDSBufferDesc,
    HWND hWnd,
    DWORD dwLevel,
    IDirectSoundFullDuplex** ppDSFD,
    IDirectSoundCaptureBuffer8** ppDSCBuffer8,
    IDirectSoundBuffer8** ppDSBuffer8,
    IUnknown* pUnkOuter   // optional
);

<DllImport("DSOUND.dll", ExactSpelling:=True)>
Public Shared Function DirectSoundFullDuplexCreate(
    pcGuidCaptureDevice As IntPtr,   ' GUID* optional
    pcGuidRenderDevice As IntPtr,   ' GUID* optional
    pcDSCBufferDesc As IntPtr,   ' DSCBUFFERDESC*
    pcDSBufferDesc As IntPtr,   ' DSBUFFERDESC*
    hWnd As IntPtr,   ' HWND
    dwLevel As UInteger,   ' DWORD
    ppDSFD As IntPtr,   ' IDirectSoundFullDuplex** out
    ppDSCBuffer8 As IntPtr,   ' IDirectSoundCaptureBuffer8** out
    ppDSBuffer8 As IntPtr,   ' IDirectSoundBuffer8** out
    pUnkOuter As IntPtr   ' IUnknown* optional
) As Integer
End Function

' pcGuidCaptureDevice : GUID* optional
' pcGuidRenderDevice : GUID* optional
' pcDSCBufferDesc : DSCBUFFERDESC*
' pcDSBufferDesc : DSBUFFERDESC*
' hWnd : HWND
' dwLevel : DWORD
' ppDSFD : IDirectSoundFullDuplex** out
' ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out
' ppDSBuffer8 : IDirectSoundBuffer8** out
' pUnkOuter : IUnknown* optional
Declare PtrSafe Function DirectSoundFullDuplexCreate Lib "dsound" ( _
    ByVal pcGuidCaptureDevice As LongPtr, _
    ByVal pcGuidRenderDevice As LongPtr, _
    ByVal pcDSCBufferDesc As LongPtr, _
    ByVal pcDSBufferDesc As LongPtr, _
    ByVal hWnd As LongPtr, _
    ByVal dwLevel As Long, _
    ByVal ppDSFD As LongPtr, _
    ByVal ppDSCBuffer8 As LongPtr, _
    ByVal ppDSBuffer8 As LongPtr, _
    ByVal pUnkOuter 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

DirectSoundFullDuplexCreate = ctypes.windll.dsound.DirectSoundFullDuplexCreate
DirectSoundFullDuplexCreate.restype = ctypes.c_int
DirectSoundFullDuplexCreate.argtypes = [
    ctypes.c_void_p,  # pcGuidCaptureDevice : GUID* optional
    ctypes.c_void_p,  # pcGuidRenderDevice : GUID* optional
    ctypes.c_void_p,  # pcDSCBufferDesc : DSCBUFFERDESC*
    ctypes.c_void_p,  # pcDSBufferDesc : DSBUFFERDESC*
    wintypes.HANDLE,  # hWnd : HWND
    wintypes.DWORD,  # dwLevel : DWORD
    ctypes.c_void_p,  # ppDSFD : IDirectSoundFullDuplex** out
    ctypes.c_void_p,  # ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out
    ctypes.c_void_p,  # ppDSBuffer8 : IDirectSoundBuffer8** out
    ctypes.c_void_p,  # pUnkOuter : IUnknown* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DSOUND.dll')
DirectSoundFullDuplexCreate = Fiddle::Function.new(
  lib['DirectSoundFullDuplexCreate'],
  [
    Fiddle::TYPE_VOIDP,  # pcGuidCaptureDevice : GUID* optional
    Fiddle::TYPE_VOIDP,  # pcGuidRenderDevice : GUID* optional
    Fiddle::TYPE_VOIDP,  # pcDSCBufferDesc : DSCBUFFERDESC*
    Fiddle::TYPE_VOIDP,  # pcDSBufferDesc : DSBUFFERDESC*
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    -Fiddle::TYPE_INT,  # dwLevel : DWORD
    Fiddle::TYPE_VOIDP,  # ppDSFD : IDirectSoundFullDuplex** out
    Fiddle::TYPE_VOIDP,  # ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out
    Fiddle::TYPE_VOIDP,  # ppDSBuffer8 : IDirectSoundBuffer8** out
    Fiddle::TYPE_VOIDP,  # pUnkOuter : IUnknown* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "dsound")]
extern "system" {
    fn DirectSoundFullDuplexCreate(
        pcGuidCaptureDevice: *const GUID,  // GUID* optional
        pcGuidRenderDevice: *const GUID,  // GUID* optional
        pcDSCBufferDesc: *mut DSCBUFFERDESC,  // DSCBUFFERDESC*
        pcDSBufferDesc: *mut DSBUFFERDESC,  // DSBUFFERDESC*
        hWnd: *mut core::ffi::c_void,  // HWND
        dwLevel: u32,  // DWORD
        ppDSFD: *mut *mut core::ffi::c_void,  // IDirectSoundFullDuplex** out
        ppDSCBuffer8: *mut *mut core::ffi::c_void,  // IDirectSoundCaptureBuffer8** out
        ppDSBuffer8: *mut *mut core::ffi::c_void,  // IDirectSoundBuffer8** out
        pUnkOuter: *mut core::ffi::c_void  // IUnknown* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DSOUND.dll")]
public static extern int DirectSoundFullDuplexCreate(IntPtr pcGuidCaptureDevice, IntPtr pcGuidRenderDevice, IntPtr pcDSCBufferDesc, IntPtr pcDSBufferDesc, IntPtr hWnd, uint dwLevel, IntPtr ppDSFD, IntPtr ppDSCBuffer8, IntPtr ppDSBuffer8, IntPtr pUnkOuter);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DSOUND_DirectSoundFullDuplexCreate' -Namespace Win32 -PassThru
# $api::DirectSoundFullDuplexCreate(pcGuidCaptureDevice, pcGuidRenderDevice, pcDSCBufferDesc, pcDSBufferDesc, hWnd, dwLevel, ppDSFD, ppDSCBuffer8, ppDSBuffer8, pUnkOuter)

#uselib "DSOUND.dll"
#func global DirectSoundFullDuplexCreate "DirectSoundFullDuplexCreate" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DirectSoundFullDuplexCreate varptr(pcGuidCaptureDevice), varptr(pcGuidRenderDevice), varptr(pcDSCBufferDesc), varptr(pcDSBufferDesc), hWnd, dwLevel, ppDSFD, ppDSCBuffer8, ppDSBuffer8, pUnkOuter   ; 戻り値は stat
; pcGuidCaptureDevice : GUID* optional -> "sptr"
; pcGuidRenderDevice : GUID* optional -> "sptr"
; pcDSCBufferDesc : DSCBUFFERDESC* -> "sptr"
; pcDSBufferDesc : DSBUFFERDESC* -> "sptr"
; hWnd : HWND -> "sptr"
; dwLevel : DWORD -> "sptr"
; ppDSFD : IDirectSoundFullDuplex** out -> "sptr"
; ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out -> "sptr"
; ppDSBuffer8 : IDirectSoundBuffer8** out -> "sptr"
; pUnkOuter : IUnknown* optional -> "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 (
	dsound = windows.NewLazySystemDLL("DSOUND.dll")
	procDirectSoundFullDuplexCreate = dsound.NewProc("DirectSoundFullDuplexCreate")
)

// pcGuidCaptureDevice (GUID* optional), pcGuidRenderDevice (GUID* optional), pcDSCBufferDesc (DSCBUFFERDESC*), pcDSBufferDesc (DSBUFFERDESC*), hWnd (HWND), dwLevel (DWORD), ppDSFD (IDirectSoundFullDuplex** out), ppDSCBuffer8 (IDirectSoundCaptureBuffer8** out), ppDSBuffer8 (IDirectSoundBuffer8** out), pUnkOuter (IUnknown* optional)
r1, _, err := procDirectSoundFullDuplexCreate.Call(
	uintptr(pcGuidCaptureDevice),
	uintptr(pcGuidRenderDevice),
	uintptr(pcDSCBufferDesc),
	uintptr(pcDSBufferDesc),
	uintptr(hWnd),
	uintptr(dwLevel),
	uintptr(ppDSFD),
	uintptr(ppDSCBuffer8),
	uintptr(ppDSBuffer8),
	uintptr(pUnkOuter),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DirectSoundFullDuplexCreate(
  pcGuidCaptureDevice: PGUID;   // GUID* optional
  pcGuidRenderDevice: PGUID;   // GUID* optional
  pcDSCBufferDesc: Pointer;   // DSCBUFFERDESC*
  pcDSBufferDesc: Pointer;   // DSBUFFERDESC*
  hWnd: THandle;   // HWND
  dwLevel: DWORD;   // DWORD
  ppDSFD: Pointer;   // IDirectSoundFullDuplex** out
  ppDSCBuffer8: Pointer;   // IDirectSoundCaptureBuffer8** out
  ppDSBuffer8: Pointer;   // IDirectSoundBuffer8** out
  pUnkOuter: Pointer   // IUnknown* optional
): Integer; stdcall;
  external 'DSOUND.dll' name 'DirectSoundFullDuplexCreate';

result := DllCall("DSOUND\DirectSoundFullDuplexCreate"
    , "Ptr", pcGuidCaptureDevice   ; GUID* optional
    , "Ptr", pcGuidRenderDevice   ; GUID* optional
    , "Ptr", pcDSCBufferDesc   ; DSCBUFFERDESC*
    , "Ptr", pcDSBufferDesc   ; DSBUFFERDESC*
    , "Ptr", hWnd   ; HWND
    , "UInt", dwLevel   ; DWORD
    , "Ptr", ppDSFD   ; IDirectSoundFullDuplex** out
    , "Ptr", ppDSCBuffer8   ; IDirectSoundCaptureBuffer8** out
    , "Ptr", ppDSBuffer8   ; IDirectSoundBuffer8** out
    , "Ptr", pUnkOuter   ; IUnknown* optional
    , "Int")   ; return: HRESULT

●DirectSoundFullDuplexCreate(pcGuidCaptureDevice, pcGuidRenderDevice, pcDSCBufferDesc, pcDSBufferDesc, hWnd, dwLevel, ppDSFD, ppDSCBuffer8, ppDSBuffer8, pUnkOuter) = DLL("DSOUND.dll", "int DirectSoundFullDuplexCreate(void*, void*, void*, void*, void*, dword, void*, void*, void*, void*)")
# 呼び出し: DirectSoundFullDuplexCreate(pcGuidCaptureDevice, pcGuidRenderDevice, pcDSCBufferDesc, pcDSBufferDesc, hWnd, dwLevel, ppDSFD, ppDSCBuffer8, ppDSBuffer8, pUnkOuter)
# pcGuidCaptureDevice : GUID* optional -> "void*"
# pcGuidRenderDevice : GUID* optional -> "void*"
# pcDSCBufferDesc : DSCBUFFERDESC* -> "void*"
# pcDSBufferDesc : DSBUFFERDESC* -> "void*"
# hWnd : HWND -> "void*"
# dwLevel : DWORD -> "dword"
# ppDSFD : IDirectSoundFullDuplex** out -> "void*"
# ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out -> "void*"
# ppDSBuffer8 : IDirectSoundBuffer8** out -> "void*"
# pUnkOuter : IUnknown* optional -> "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 "dsound" fn DirectSoundFullDuplexCreate(
    pcGuidCaptureDevice: [*c]GUID, // GUID* optional
    pcGuidRenderDevice: [*c]GUID, // GUID* optional
    pcDSCBufferDesc: [*c]DSCBUFFERDESC, // DSCBUFFERDESC*
    pcDSBufferDesc: [*c]DSBUFFERDESC, // DSBUFFERDESC*
    hWnd: ?*anyopaque, // HWND
    dwLevel: u32, // DWORD
    ppDSFD: ?*anyopaque, // IDirectSoundFullDuplex** out
    ppDSCBuffer8: ?*anyopaque, // IDirectSoundCaptureBuffer8** out
    ppDSBuffer8: ?*anyopaque, // IDirectSoundBuffer8** out
    pUnkOuter: ?*anyopaque // IUnknown* optional
) callconv(std.os.windows.WINAPI) i32;

proc DirectSoundFullDuplexCreate(
    pcGuidCaptureDevice: ptr GUID,  # GUID* optional
    pcGuidRenderDevice: ptr GUID,  # GUID* optional
    pcDSCBufferDesc: ptr DSCBUFFERDESC,  # DSCBUFFERDESC*
    pcDSBufferDesc: ptr DSBUFFERDESC,  # DSBUFFERDESC*
    hWnd: pointer,  # HWND
    dwLevel: uint32,  # DWORD
    ppDSFD: pointer,  # IDirectSoundFullDuplex** out
    ppDSCBuffer8: pointer,  # IDirectSoundCaptureBuffer8** out
    ppDSBuffer8: pointer,  # IDirectSoundBuffer8** out
    pUnkOuter: pointer  # IUnknown* optional
): int32 {.importc: "DirectSoundFullDuplexCreate", stdcall, dynlib: "DSOUND.dll".}

pragma(lib, "dsound");
extern(Windows)
int DirectSoundFullDuplexCreate(
    GUID* pcGuidCaptureDevice,   // GUID* optional
    GUID* pcGuidRenderDevice,   // GUID* optional
    DSCBUFFERDESC* pcDSCBufferDesc,   // DSCBUFFERDESC*
    DSBUFFERDESC* pcDSBufferDesc,   // DSBUFFERDESC*
    void* hWnd,   // HWND
    uint dwLevel,   // DWORD
    void* ppDSFD,   // IDirectSoundFullDuplex** out
    void* ppDSCBuffer8,   // IDirectSoundCaptureBuffer8** out
    void* ppDSBuffer8,   // IDirectSoundBuffer8** out
    void* pUnkOuter   // IUnknown* optional
);

ccall((:DirectSoundFullDuplexCreate, "DSOUND.dll"), stdcall, Int32,
      (Ptr{GUID}, Ptr{GUID}, Ptr{DSCBUFFERDESC}, Ptr{DSBUFFERDESC}, Ptr{Cvoid}, UInt32, Ptr{Cvoid}, Ptr{Cvoid}, Ptr{Cvoid}, Ptr{Cvoid}),
      pcGuidCaptureDevice, pcGuidRenderDevice, pcDSCBufferDesc, pcDSBufferDesc, hWnd, dwLevel, ppDSFD, ppDSCBuffer8, ppDSBuffer8, pUnkOuter)
# pcGuidCaptureDevice : GUID* optional -> Ptr{GUID}
# pcGuidRenderDevice : GUID* optional -> Ptr{GUID}
# pcDSCBufferDesc : DSCBUFFERDESC* -> Ptr{DSCBUFFERDESC}
# pcDSBufferDesc : DSBUFFERDESC* -> Ptr{DSBUFFERDESC}
# hWnd : HWND -> Ptr{Cvoid}
# dwLevel : DWORD -> UInt32
# ppDSFD : IDirectSoundFullDuplex** out -> Ptr{Cvoid}
# ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out -> Ptr{Cvoid}
# ppDSBuffer8 : IDirectSoundBuffer8** out -> Ptr{Cvoid}
# pUnkOuter : IUnknown* optional -> 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 DirectSoundFullDuplexCreate(
    void* pcGuidCaptureDevice,
    void* pcGuidRenderDevice,
    void* pcDSCBufferDesc,
    void* pcDSBufferDesc,
    void* hWnd,
    uint32_t dwLevel,
    void* ppDSFD,
    void* ppDSCBuffer8,
    void* ppDSBuffer8,
    void* pUnkOuter);
]]
local dsound = ffi.load("dsound")
-- dsound.DirectSoundFullDuplexCreate(pcGuidCaptureDevice, pcGuidRenderDevice, pcDSCBufferDesc, pcDSBufferDesc, hWnd, dwLevel, ppDSFD, ppDSCBuffer8, ppDSBuffer8, pUnkOuter)
-- pcGuidCaptureDevice : GUID* optional
-- pcGuidRenderDevice : GUID* optional
-- pcDSCBufferDesc : DSCBUFFERDESC*
-- pcDSBufferDesc : DSBUFFERDESC*
-- hWnd : HWND
-- dwLevel : DWORD
-- ppDSFD : IDirectSoundFullDuplex** out
-- ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out
-- ppDSBuffer8 : IDirectSoundBuffer8** out
-- pUnkOuter : IUnknown* optional
-- 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('DSOUND.dll');
const DirectSoundFullDuplexCreate = lib.func('__stdcall', 'DirectSoundFullDuplexCreate', 'int32_t', ['void *', 'void *', 'void *', 'void *', 'void *', 'uint32_t', 'void *', 'void *', 'void *', 'void *']);
// DirectSoundFullDuplexCreate(pcGuidCaptureDevice, pcGuidRenderDevice, pcDSCBufferDesc, pcDSBufferDesc, hWnd, dwLevel, ppDSFD, ppDSCBuffer8, ppDSBuffer8, pUnkOuter)
// pcGuidCaptureDevice : GUID* optional -> 'void *'
// pcGuidRenderDevice : GUID* optional -> 'void *'
// pcDSCBufferDesc : DSCBUFFERDESC* -> 'void *'
// pcDSBufferDesc : DSBUFFERDESC* -> 'void *'
// hWnd : HWND -> 'void *'
// dwLevel : DWORD -> 'uint32_t'
// ppDSFD : IDirectSoundFullDuplex** out -> 'void *'
// ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out -> 'void *'
// ppDSBuffer8 : IDirectSoundBuffer8** out -> 'void *'
// pUnkOuter : IUnknown* optional -> '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("DSOUND.dll", {
  DirectSoundFullDuplexCreate: { parameters: ["pointer", "pointer", "pointer", "pointer", "pointer", "u32", "pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.DirectSoundFullDuplexCreate(pcGuidCaptureDevice, pcGuidRenderDevice, pcDSCBufferDesc, pcDSBufferDesc, hWnd, dwLevel, ppDSFD, ppDSCBuffer8, ppDSBuffer8, pUnkOuter)
// pcGuidCaptureDevice : GUID* optional -> "pointer"
// pcGuidRenderDevice : GUID* optional -> "pointer"
// pcDSCBufferDesc : DSCBUFFERDESC* -> "pointer"
// pcDSBufferDesc : DSBUFFERDESC* -> "pointer"
// hWnd : HWND -> "pointer"
// dwLevel : DWORD -> "u32"
// ppDSFD : IDirectSoundFullDuplex** out -> "pointer"
// ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out -> "pointer"
// ppDSBuffer8 : IDirectSoundBuffer8** out -> "pointer"
// pUnkOuter : IUnknown* optional -> "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 DirectSoundFullDuplexCreate(
    void* pcGuidCaptureDevice,
    void* pcGuidRenderDevice,
    void* pcDSCBufferDesc,
    void* pcDSBufferDesc,
    void* hWnd,
    uint32_t dwLevel,
    void* ppDSFD,
    void* ppDSCBuffer8,
    void* ppDSBuffer8,
    void* pUnkOuter);
C, "DSOUND.dll");
// $ffi->DirectSoundFullDuplexCreate(pcGuidCaptureDevice, pcGuidRenderDevice, pcDSCBufferDesc, pcDSBufferDesc, hWnd, dwLevel, ppDSFD, ppDSCBuffer8, ppDSBuffer8, pUnkOuter);
// pcGuidCaptureDevice : GUID* optional
// pcGuidRenderDevice : GUID* optional
// pcDSCBufferDesc : DSCBUFFERDESC*
// pcDSBufferDesc : DSBUFFERDESC*
// hWnd : HWND
// dwLevel : DWORD
// ppDSFD : IDirectSoundFullDuplex** out
// ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out
// ppDSBuffer8 : IDirectSoundBuffer8** out
// pUnkOuter : IUnknown* optional
// 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 Dsound extends StdCallLibrary {
    Dsound INSTANCE = Native.load("dsound", Dsound.class);
    int DirectSoundFullDuplexCreate(
        Pointer pcGuidCaptureDevice,   // GUID* optional
        Pointer pcGuidRenderDevice,   // GUID* optional
        Pointer pcDSCBufferDesc,   // DSCBUFFERDESC*
        Pointer pcDSBufferDesc,   // DSBUFFERDESC*
        Pointer hWnd,   // HWND
        int dwLevel,   // DWORD
        Pointer ppDSFD,   // IDirectSoundFullDuplex** out
        Pointer ppDSCBuffer8,   // IDirectSoundCaptureBuffer8** out
        Pointer ppDSBuffer8,   // IDirectSoundBuffer8** out
        Pointer pUnkOuter   // IUnknown* optional
    );
}

@[Link("dsound")]
lib LibDSOUND
  fun DirectSoundFullDuplexCreate = DirectSoundFullDuplexCreate(
    pcGuidCaptureDevice : GUID*,   # GUID* optional
    pcGuidRenderDevice : GUID*,   # GUID* optional
    pcDSCBufferDesc : DSCBUFFERDESC*,   # DSCBUFFERDESC*
    pcDSBufferDesc : DSBUFFERDESC*,   # DSBUFFERDESC*
    hWnd : Void*,   # HWND
    dwLevel : UInt32,   # DWORD
    ppDSFD : Void*,   # IDirectSoundFullDuplex** out
    ppDSCBuffer8 : Void*,   # IDirectSoundCaptureBuffer8** out
    ppDSBuffer8 : Void*,   # IDirectSoundBuffer8** out
    pUnkOuter : Void*   # IUnknown* optional
  ) : 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 DirectSoundFullDuplexCreateNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>, Uint32, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef DirectSoundFullDuplexCreateDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>, int, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
final DirectSoundFullDuplexCreate = DynamicLibrary.open('DSOUND.dll')
    .lookupFunction<DirectSoundFullDuplexCreateNative, DirectSoundFullDuplexCreateDart>('DirectSoundFullDuplexCreate');
// pcGuidCaptureDevice : GUID* optional -> Pointer<Void>
// pcGuidRenderDevice : GUID* optional -> Pointer<Void>
// pcDSCBufferDesc : DSCBUFFERDESC* -> Pointer<Void>
// pcDSBufferDesc : DSBUFFERDESC* -> Pointer<Void>
// hWnd : HWND -> Pointer<Void>
// dwLevel : DWORD -> Uint32
// ppDSFD : IDirectSoundFullDuplex** out -> Pointer<Void>
// ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out -> Pointer<Void>
// ppDSBuffer8 : IDirectSoundBuffer8** out -> Pointer<Void>
// pUnkOuter : IUnknown* optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DirectSoundFullDuplexCreate(
  pcGuidCaptureDevice: PGUID;   // GUID* optional
  pcGuidRenderDevice: PGUID;   // GUID* optional
  pcDSCBufferDesc: Pointer;   // DSCBUFFERDESC*
  pcDSBufferDesc: Pointer;   // DSBUFFERDESC*
  hWnd: THandle;   // HWND
  dwLevel: DWORD;   // DWORD
  ppDSFD: Pointer;   // IDirectSoundFullDuplex** out
  ppDSCBuffer8: Pointer;   // IDirectSoundCaptureBuffer8** out
  ppDSBuffer8: Pointer;   // IDirectSoundBuffer8** out
  pUnkOuter: Pointer   // IUnknown* optional
): Integer; stdcall;
  external 'DSOUND.dll' name 'DirectSoundFullDuplexCreate';

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

foreign import stdcall safe "DirectSoundFullDuplexCreate"
  c_DirectSoundFullDuplexCreate :: Ptr () -> Ptr () -> Ptr () -> Ptr () -> Ptr () -> Word32 -> Ptr () -> Ptr () -> Ptr () -> Ptr () -> IO Int32
-- pcGuidCaptureDevice : GUID* optional -> Ptr ()
-- pcGuidRenderDevice : GUID* optional -> Ptr ()
-- pcDSCBufferDesc : DSCBUFFERDESC* -> Ptr ()
-- pcDSBufferDesc : DSBUFFERDESC* -> Ptr ()
-- hWnd : HWND -> Ptr ()
-- dwLevel : DWORD -> Word32
-- ppDSFD : IDirectSoundFullDuplex** out -> Ptr ()
-- ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out -> Ptr ()
-- ppDSBuffer8 : IDirectSoundBuffer8** out -> Ptr ()
-- pUnkOuter : IUnknown* optional -> 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 directsoundfullduplexcreate =
  foreign "DirectSoundFullDuplexCreate"
    ((ptr void) @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> uint32_t @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* pcGuidCaptureDevice : GUID* optional -> (ptr void) *)
(* pcGuidRenderDevice : GUID* optional -> (ptr void) *)
(* pcDSCBufferDesc : DSCBUFFERDESC* -> (ptr void) *)
(* pcDSBufferDesc : DSBUFFERDESC* -> (ptr void) *)
(* hWnd : HWND -> (ptr void) *)
(* dwLevel : DWORD -> uint32_t *)
(* ppDSFD : IDirectSoundFullDuplex** out -> (ptr void) *)
(* ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out -> (ptr void) *)
(* ppDSBuffer8 : IDirectSoundBuffer8** out -> (ptr void) *)
(* pUnkOuter : IUnknown* optional -> (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 dsound (t "DSOUND.dll"))
(cffi:use-foreign-library dsound)

(cffi:defcfun ("DirectSoundFullDuplexCreate" direct-sound-full-duplex-create :convention :stdcall) :int32
  (pc-guid-capture-device :pointer)   ; GUID* optional
  (pc-guid-render-device :pointer)   ; GUID* optional
  (pc-dscbuffer-desc :pointer)   ; DSCBUFFERDESC*
  (pc-dsbuffer-desc :pointer)   ; DSBUFFERDESC*
  (h-wnd :pointer)   ; HWND
  (dw-level :uint32)   ; DWORD
  (pp-dsfd :pointer)   ; IDirectSoundFullDuplex** out
  (pp-dscbuffer8 :pointer)   ; IDirectSoundCaptureBuffer8** out
  (pp-dsbuffer8 :pointer)   ; IDirectSoundBuffer8** out
  (p-unk-outer :pointer))   ; IUnknown* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DirectSoundFullDuplexCreate = Win32::API::More->new('DSOUND',
    'int DirectSoundFullDuplexCreate(LPVOID pcGuidCaptureDevice, LPVOID pcGuidRenderDevice, LPVOID pcDSCBufferDesc, LPVOID pcDSBufferDesc, HANDLE hWnd, DWORD dwLevel, LPVOID ppDSFD, LPVOID ppDSCBuffer8, LPVOID ppDSBuffer8, LPVOID pUnkOuter)');
# my $ret = $DirectSoundFullDuplexCreate->Call($pcGuidCaptureDevice, $pcGuidRenderDevice, $pcDSCBufferDesc, $pcDSBufferDesc, $hWnd, $dwLevel, $ppDSFD, $ppDSCBuffer8, $ppDSBuffer8, $pUnkOuter);
# pcGuidCaptureDevice : GUID* optional -> LPVOID
# pcGuidRenderDevice : GUID* optional -> LPVOID
# pcDSCBufferDesc : DSCBUFFERDESC* -> LPVOID
# pcDSBufferDesc : DSBUFFERDESC* -> LPVOID
# hWnd : HWND -> HANDLE
# dwLevel : DWORD -> DWORD
# ppDSFD : IDirectSoundFullDuplex** out -> LPVOID
# ppDSCBuffer8 : IDirectSoundCaptureBuffer8** out -> LPVOID
# ppDSBuffer8 : IDirectSoundBuffer8** out -> LPVOID
# pUnkOuter : IUnknown* optional -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。