DirectSoundEnumerateA

// DSOUND.dll  (ANSI / -A)
#include <windows.h>

HRESULT DirectSoundEnumerateA(
    LPDSENUMCALLBACKA pDSEnumCallback,
    void* pContext   // optional
);

<DllImport("DSOUND.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function DirectSoundEnumerateA(
    pDSEnumCallback As IntPtr,   ' LPDSENUMCALLBACKA
    pContext As IntPtr   ' void* optional
) As Integer
End Function

' pDSEnumCallback : LPDSENUMCALLBACKA
' pContext : void* optional
Declare PtrSafe Function DirectSoundEnumerateA Lib "dsound" ( _
    ByVal pDSEnumCallback As LongPtr, _
    ByVal pContext 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

DirectSoundEnumerateA = ctypes.windll.dsound.DirectSoundEnumerateA
DirectSoundEnumerateA.restype = ctypes.c_int
DirectSoundEnumerateA.argtypes = [
    ctypes.c_void_p,  # pDSEnumCallback : LPDSENUMCALLBACKA
    ctypes.POINTER(None),  # pContext : void* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DSOUND.dll')
DirectSoundEnumerateA = Fiddle::Function.new(
  lib['DirectSoundEnumerateA'],
  [
    Fiddle::TYPE_VOIDP,  # pDSEnumCallback : LPDSENUMCALLBACKA
    Fiddle::TYPE_VOIDP,  # pContext : void* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "dsound")]
extern "system" {
    fn DirectSoundEnumerateA(
        pDSEnumCallback: *const core::ffi::c_void,  // LPDSENUMCALLBACKA
        pContext: *mut ()  // void* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DSOUND.dll", CharSet = CharSet.Ansi)]
public static extern int DirectSoundEnumerateA(IntPtr pDSEnumCallback, IntPtr pContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DSOUND_DirectSoundEnumerateA' -Namespace Win32 -PassThru
# $api::DirectSoundEnumerateA(pDSEnumCallback, pContext)

#uselib "DSOUND.dll"
#func global DirectSoundEnumerateA "DirectSoundEnumerateA" sptr, sptr
; DirectSoundEnumerateA pDSEnumCallback, pContext   ; 戻り値は stat
; pDSEnumCallback : LPDSENUMCALLBACKA -> "sptr"
; pContext : void* 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。

#uselib "DSOUND.dll"
#cfunc global DirectSoundEnumerateA "DirectSoundEnumerateA" sptr, sptr
; res = DirectSoundEnumerateA(pDSEnumCallback, pContext)
; pDSEnumCallback : LPDSENUMCALLBACKA -> "sptr"
; pContext : void* optional -> "sptr"

; HRESULT DirectSoundEnumerateA(LPDSENUMCALLBACKA pDSEnumCallback, void* pContext)
#uselib "DSOUND.dll"
#cfunc global DirectSoundEnumerateA "DirectSoundEnumerateA" intptr, intptr
; res = DirectSoundEnumerateA(pDSEnumCallback, pContext)
; pDSEnumCallback : LPDSENUMCALLBACKA -> "intptr"
; pContext : void* optional -> "intptr"

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

var (
	dsound = windows.NewLazySystemDLL("DSOUND.dll")
	procDirectSoundEnumerateA = dsound.NewProc("DirectSoundEnumerateA")
)

// pDSEnumCallback (LPDSENUMCALLBACKA), pContext (void* optional)
r1, _, err := procDirectSoundEnumerateA.Call(
	uintptr(pDSEnumCallback),
	uintptr(pContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DirectSoundEnumerateA(
  pDSEnumCallback: Pointer;   // LPDSENUMCALLBACKA
  pContext: Pointer   // void* optional
): Integer; stdcall;
  external 'DSOUND.dll' name 'DirectSoundEnumerateA';

result := DllCall("DSOUND\DirectSoundEnumerateA"
    , "Ptr", pDSEnumCallback   ; LPDSENUMCALLBACKA
    , "Ptr", pContext   ; void* optional
    , "Int")   ; return: HRESULT

●DirectSoundEnumerateA(pDSEnumCallback, pContext) = DLL("DSOUND.dll", "int DirectSoundEnumerateA(void*, void*)")
# 呼び出し: DirectSoundEnumerateA(pDSEnumCallback, pContext)
# pDSEnumCallback : LPDSENUMCALLBACKA -> "void*"
# pContext : void* 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)。