ActivateAudioInterfaceAsync

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

HRESULT ActivateAudioInterfaceAsync(
    LPCWSTR deviceInterfacePath,
    const GUID* riid,
    PROPVARIANT* activationParams,   // optional
    IActivateAudioInterfaceCompletionHandler* completionHandler,
    IActivateAudioInterfaceAsyncOperation** activationOperation
);

<DllImport("MMDevAPI.dll", ExactSpelling:=True)>
Public Shared Function ActivateAudioInterfaceAsync(
    <MarshalAs(UnmanagedType.LPWStr)> deviceInterfacePath As String,   ' LPCWSTR
    ByRef riid As Guid,   ' GUID*
    activationParams As IntPtr,   ' PROPVARIANT* optional
    completionHandler As IntPtr,   ' IActivateAudioInterfaceCompletionHandler*
    activationOperation As IntPtr   ' IActivateAudioInterfaceAsyncOperation** out
) As Integer
End Function

' deviceInterfacePath : LPCWSTR
' riid : GUID*
' activationParams : PROPVARIANT* optional
' completionHandler : IActivateAudioInterfaceCompletionHandler*
' activationOperation : IActivateAudioInterfaceAsyncOperation** out
Declare PtrSafe Function ActivateAudioInterfaceAsync Lib "mmdevapi" ( _
    ByVal deviceInterfacePath As LongPtr, _
    ByVal riid As LongPtr, _
    ByVal activationParams As LongPtr, _
    ByVal completionHandler As LongPtr, _
    ByVal activationOperation 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

ActivateAudioInterfaceAsync = ctypes.windll.mmdevapi.ActivateAudioInterfaceAsync
ActivateAudioInterfaceAsync.restype = ctypes.c_int
ActivateAudioInterfaceAsync.argtypes = [
    wintypes.LPCWSTR,  # deviceInterfacePath : LPCWSTR
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # activationParams : PROPVARIANT* optional
    ctypes.c_void_p,  # completionHandler : IActivateAudioInterfaceCompletionHandler*
    ctypes.c_void_p,  # activationOperation : IActivateAudioInterfaceAsyncOperation** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MMDevAPI.dll')
ActivateAudioInterfaceAsync = Fiddle::Function.new(
  lib['ActivateAudioInterfaceAsync'],
  [
    Fiddle::TYPE_VOIDP,  # deviceInterfacePath : LPCWSTR
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # activationParams : PROPVARIANT* optional
    Fiddle::TYPE_VOIDP,  # completionHandler : IActivateAudioInterfaceCompletionHandler*
    Fiddle::TYPE_VOIDP,  # activationOperation : IActivateAudioInterfaceAsyncOperation** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mmdevapi")]
extern "system" {
    fn ActivateAudioInterfaceAsync(
        deviceInterfacePath: *const u16,  // LPCWSTR
        riid: *const GUID,  // GUID*
        activationParams: *mut PROPVARIANT,  // PROPVARIANT* optional
        completionHandler: *mut core::ffi::c_void,  // IActivateAudioInterfaceCompletionHandler*
        activationOperation: *mut *mut core::ffi::c_void  // IActivateAudioInterfaceAsyncOperation** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MMDevAPI.dll")]
public static extern int ActivateAudioInterfaceAsync([MarshalAs(UnmanagedType.LPWStr)] string deviceInterfacePath, ref Guid riid, IntPtr activationParams, IntPtr completionHandler, IntPtr activationOperation);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MMDevAPI_ActivateAudioInterfaceAsync' -Namespace Win32 -PassThru
# $api::ActivateAudioInterfaceAsync(deviceInterfacePath, riid, activationParams, completionHandler, activationOperation)

#uselib "MMDevAPI.dll"
#func global ActivateAudioInterfaceAsync "ActivateAudioInterfaceAsync" sptr, sptr, sptr, sptr, sptr
; ActivateAudioInterfaceAsync deviceInterfacePath, varptr(riid), varptr(activationParams), completionHandler, activationOperation   ; 戻り値は stat
; deviceInterfacePath : LPCWSTR -> "sptr"
; riid : GUID* -> "sptr"
; activationParams : PROPVARIANT* optional -> "sptr"
; completionHandler : IActivateAudioInterfaceCompletionHandler* -> "sptr"
; activationOperation : IActivateAudioInterfaceAsyncOperation** 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。

#uselib "MMDevAPI.dll"
#cfunc global ActivateAudioInterfaceAsync "ActivateAudioInterfaceAsync" wstr, var, var, sptr, sptr
; res = ActivateAudioInterfaceAsync(deviceInterfacePath, riid, activationParams, completionHandler, activationOperation)
; deviceInterfacePath : LPCWSTR -> "wstr"
; riid : GUID* -> "var"
; activationParams : PROPVARIANT* optional -> "var"
; completionHandler : IActivateAudioInterfaceCompletionHandler* -> "sptr"
; activationOperation : IActivateAudioInterfaceAsyncOperation** out -> "sptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; HRESULT ActivateAudioInterfaceAsync(LPCWSTR deviceInterfacePath, GUID* riid, PROPVARIANT* activationParams, IActivateAudioInterfaceCompletionHandler* completionHandler, IActivateAudioInterfaceAsyncOperation** activationOperation)
#uselib "MMDevAPI.dll"
#cfunc global ActivateAudioInterfaceAsync "ActivateAudioInterfaceAsync" wstr, var, var, intptr, intptr
; res = ActivateAudioInterfaceAsync(deviceInterfacePath, riid, activationParams, completionHandler, activationOperation)
; deviceInterfacePath : LPCWSTR -> "wstr"
; riid : GUID* -> "var"
; activationParams : PROPVARIANT* optional -> "var"
; completionHandler : IActivateAudioInterfaceCompletionHandler* -> "intptr"
; activationOperation : IActivateAudioInterfaceAsyncOperation** out -> "intptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	mmdevapi = windows.NewLazySystemDLL("MMDevAPI.dll")
	procActivateAudioInterfaceAsync = mmdevapi.NewProc("ActivateAudioInterfaceAsync")
)

// deviceInterfacePath (LPCWSTR), riid (GUID*), activationParams (PROPVARIANT* optional), completionHandler (IActivateAudioInterfaceCompletionHandler*), activationOperation (IActivateAudioInterfaceAsyncOperation** out)
r1, _, err := procActivateAudioInterfaceAsync.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(deviceInterfacePath))),
	uintptr(riid),
	uintptr(activationParams),
	uintptr(completionHandler),
	uintptr(activationOperation),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function ActivateAudioInterfaceAsync(
  deviceInterfacePath: PWideChar;   // LPCWSTR
  riid: PGUID;   // GUID*
  activationParams: Pointer;   // PROPVARIANT* optional
  completionHandler: Pointer;   // IActivateAudioInterfaceCompletionHandler*
  activationOperation: Pointer   // IActivateAudioInterfaceAsyncOperation** out
): Integer; stdcall;
  external 'MMDevAPI.dll' name 'ActivateAudioInterfaceAsync';

result := DllCall("MMDevAPI\ActivateAudioInterfaceAsync"
    , "WStr", deviceInterfacePath   ; LPCWSTR
    , "Ptr", riid   ; GUID*
    , "Ptr", activationParams   ; PROPVARIANT* optional
    , "Ptr", completionHandler   ; IActivateAudioInterfaceCompletionHandler*
    , "Ptr", activationOperation   ; IActivateAudioInterfaceAsyncOperation** out
    , "Int")   ; return: HRESULT

●ActivateAudioInterfaceAsync(deviceInterfacePath, riid, activationParams, completionHandler, activationOperation) = DLL("MMDevAPI.dll", "int ActivateAudioInterfaceAsync(char*, void*, void*, void*, void*)")
# 呼び出し: ActivateAudioInterfaceAsync(deviceInterfacePath, riid, activationParams, completionHandler, activationOperation)
# deviceInterfacePath : LPCWSTR -> "char*"
# riid : GUID* -> "void*"
# activationParams : PROPVARIANT* optional -> "void*"
# completionHandler : IActivateAudioInterfaceCompletionHandler* -> "void*"
# activationOperation : IActivateAudioInterfaceAsyncOperation** 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)。