acmDriverEnum

// MSACM32.dll
#include <windows.h>

DWORD acmDriverEnum(
    ACMDRIVERENUMCB fnCallback,
    UINT_PTR dwInstance,
    DWORD fdwEnum
);

<DllImport("MSACM32.dll", ExactSpelling:=True)>
Public Shared Function acmDriverEnum(
    fnCallback As IntPtr,   ' ACMDRIVERENUMCB
    dwInstance As UIntPtr,   ' UINT_PTR
    fdwEnum As UInteger   ' DWORD
) As UInteger
End Function

' fnCallback : ACMDRIVERENUMCB
' dwInstance : UINT_PTR
' fdwEnum : DWORD
Declare PtrSafe Function acmDriverEnum Lib "msacm32" ( _
    ByVal fnCallback As LongPtr, _
    ByVal dwInstance As LongPtr, _
    ByVal fdwEnum 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

acmDriverEnum = ctypes.windll.msacm32.acmDriverEnum
acmDriverEnum.restype = wintypes.DWORD
acmDriverEnum.argtypes = [
    ctypes.c_void_p,  # fnCallback : ACMDRIVERENUMCB
    ctypes.c_size_t,  # dwInstance : UINT_PTR
    wintypes.DWORD,  # fdwEnum : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSACM32.dll')
acmDriverEnum = Fiddle::Function.new(
  lib['acmDriverEnum'],
  [
    Fiddle::TYPE_VOIDP,  # fnCallback : ACMDRIVERENUMCB
    Fiddle::TYPE_UINTPTR_T,  # dwInstance : UINT_PTR
    -Fiddle::TYPE_INT,  # fdwEnum : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "msacm32")]
extern "system" {
    fn acmDriverEnum(
        fnCallback: *const core::ffi::c_void,  // ACMDRIVERENUMCB
        dwInstance: usize,  // UINT_PTR
        fdwEnum: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MSACM32.dll")]
public static extern uint acmDriverEnum(IntPtr fnCallback, UIntPtr dwInstance, uint fdwEnum);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSACM32_acmDriverEnum' -Namespace Win32 -PassThru
# $api::acmDriverEnum(fnCallback, dwInstance, fdwEnum)

#uselib "MSACM32.dll"
#func global acmDriverEnum "acmDriverEnum" sptr, sptr, sptr
; acmDriverEnum fnCallback, dwInstance, fdwEnum   ; 戻り値は stat
; fnCallback : ACMDRIVERENUMCB -> "sptr"
; dwInstance : UINT_PTR -> "sptr"
; fdwEnum : DWORD -> "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 "MSACM32.dll"
#cfunc global acmDriverEnum "acmDriverEnum" sptr, sptr, int
; res = acmDriverEnum(fnCallback, dwInstance, fdwEnum)
; fnCallback : ACMDRIVERENUMCB -> "sptr"
; dwInstance : UINT_PTR -> "sptr"
; fdwEnum : DWORD -> "int"

; DWORD acmDriverEnum(ACMDRIVERENUMCB fnCallback, UINT_PTR dwInstance, DWORD fdwEnum)
#uselib "MSACM32.dll"
#cfunc global acmDriverEnum "acmDriverEnum" intptr, intptr, int
; res = acmDriverEnum(fnCallback, dwInstance, fdwEnum)
; fnCallback : ACMDRIVERENUMCB -> "intptr"
; dwInstance : UINT_PTR -> "intptr"
; fdwEnum : DWORD -> "int"

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

var (
	msacm32 = windows.NewLazySystemDLL("MSACM32.dll")
	procacmDriverEnum = msacm32.NewProc("acmDriverEnum")
)

// fnCallback (ACMDRIVERENUMCB), dwInstance (UINT_PTR), fdwEnum (DWORD)
r1, _, err := procacmDriverEnum.Call(
	uintptr(fnCallback),
	uintptr(dwInstance),
	uintptr(fdwEnum),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function acmDriverEnum(
  fnCallback: Pointer;   // ACMDRIVERENUMCB
  dwInstance: NativeUInt;   // UINT_PTR
  fdwEnum: DWORD   // DWORD
): DWORD; stdcall;
  external 'MSACM32.dll' name 'acmDriverEnum';

result := DllCall("MSACM32\acmDriverEnum"
    , "Ptr", fnCallback   ; ACMDRIVERENUMCB
    , "UPtr", dwInstance   ; UINT_PTR
    , "UInt", fdwEnum   ; DWORD
    , "UInt")   ; return: DWORD

●acmDriverEnum(fnCallback, dwInstance, fdwEnum) = DLL("MSACM32.dll", "dword acmDriverEnum(void*, int, dword)")
# 呼び出し: acmDriverEnum(fnCallback, dwInstance, fdwEnum)
# fnCallback : ACMDRIVERENUMCB -> "void*"
# dwInstance : UINT_PTR -> "int"
# fdwEnum : DWORD -> "dword"
# 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)。