CreateRenderAudioStateMonitorForCategory

// Windows.Media.MediaControl.dll
#include <windows.h>

HRESULT CreateRenderAudioStateMonitorForCategory(
    AUDIO_STREAM_CATEGORY category,
    IAudioStateMonitor** audioStateMonitor
);

<DllImport("Windows.Media.MediaControl.dll", ExactSpelling:=True)>
Public Shared Function CreateRenderAudioStateMonitorForCategory(
    category As Integer,   ' AUDIO_STREAM_CATEGORY
    audioStateMonitor As IntPtr   ' IAudioStateMonitor** out
) As Integer
End Function

' category : AUDIO_STREAM_CATEGORY
' audioStateMonitor : IAudioStateMonitor** out
Declare PtrSafe Function CreateRenderAudioStateMonitorForCategory Lib "windows.media.mediacontrol" ( _
    ByVal category As Long, _
    ByVal audioStateMonitor 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

CreateRenderAudioStateMonitorForCategory = ctypes.windll.LoadLibrary("Windows.Media.MediaControl.dll").CreateRenderAudioStateMonitorForCategory
CreateRenderAudioStateMonitorForCategory.restype = ctypes.c_int
CreateRenderAudioStateMonitorForCategory.argtypes = [
    ctypes.c_int,  # category : AUDIO_STREAM_CATEGORY
    ctypes.c_void_p,  # audioStateMonitor : IAudioStateMonitor** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('Windows.Media.MediaControl.dll')
CreateRenderAudioStateMonitorForCategory = Fiddle::Function.new(
  lib['CreateRenderAudioStateMonitorForCategory'],
  [
    Fiddle::TYPE_INT,  # category : AUDIO_STREAM_CATEGORY
    Fiddle::TYPE_VOIDP,  # audioStateMonitor : IAudioStateMonitor** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "windows.media.mediacontrol")]
extern "system" {
    fn CreateRenderAudioStateMonitorForCategory(
        category: i32,  // AUDIO_STREAM_CATEGORY
        audioStateMonitor: *mut *mut core::ffi::c_void  // IAudioStateMonitor** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("Windows.Media.MediaControl.dll")]
public static extern int CreateRenderAudioStateMonitorForCategory(int category, IntPtr audioStateMonitor);
"@
$api = Add-Type -MemberDefinition $sig -Name 'Windows.Media.MediaControl_CreateRenderAudioStateMonitorForCategory' -Namespace Win32 -PassThru
# $api::CreateRenderAudioStateMonitorForCategory(category, audioStateMonitor)

#uselib "Windows.Media.MediaControl.dll"
#func global CreateRenderAudioStateMonitorForCategory "CreateRenderAudioStateMonitorForCategory" sptr, sptr
; CreateRenderAudioStateMonitorForCategory category, audioStateMonitor   ; 戻り値は stat
; category : AUDIO_STREAM_CATEGORY -> "sptr"
; audioStateMonitor : IAudioStateMonitor** 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 "Windows.Media.MediaControl.dll"
#cfunc global CreateRenderAudioStateMonitorForCategory "CreateRenderAudioStateMonitorForCategory" int, sptr
; res = CreateRenderAudioStateMonitorForCategory(category, audioStateMonitor)
; category : AUDIO_STREAM_CATEGORY -> "int"
; audioStateMonitor : IAudioStateMonitor** out -> "sptr"

; HRESULT CreateRenderAudioStateMonitorForCategory(AUDIO_STREAM_CATEGORY category, IAudioStateMonitor** audioStateMonitor)
#uselib "Windows.Media.MediaControl.dll"
#cfunc global CreateRenderAudioStateMonitorForCategory "CreateRenderAudioStateMonitorForCategory" int, intptr
; res = CreateRenderAudioStateMonitorForCategory(category, audioStateMonitor)
; category : AUDIO_STREAM_CATEGORY -> "int"
; audioStateMonitor : IAudioStateMonitor** out -> "intptr"

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

var (
	windows_media_mediacontrol = windows.NewLazySystemDLL("Windows.Media.MediaControl.dll")
	procCreateRenderAudioStateMonitorForCategory = windows_media_mediacontrol.NewProc("CreateRenderAudioStateMonitorForCategory")
)

// category (AUDIO_STREAM_CATEGORY), audioStateMonitor (IAudioStateMonitor** out)
r1, _, err := procCreateRenderAudioStateMonitorForCategory.Call(
	uintptr(category),
	uintptr(audioStateMonitor),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CreateRenderAudioStateMonitorForCategory(
  category: Integer;   // AUDIO_STREAM_CATEGORY
  audioStateMonitor: Pointer   // IAudioStateMonitor** out
): Integer; stdcall;
  external 'Windows.Media.MediaControl.dll' name 'CreateRenderAudioStateMonitorForCategory';

result := DllCall("Windows.Media.MediaControl\CreateRenderAudioStateMonitorForCategory"
    , "Int", category   ; AUDIO_STREAM_CATEGORY
    , "Ptr", audioStateMonitor   ; IAudioStateMonitor** out
    , "Int")   ; return: HRESULT

●CreateRenderAudioStateMonitorForCategory(category, audioStateMonitor) = DLL("Windows.Media.MediaControl.dll", "int CreateRenderAudioStateMonitorForCategory(int, void*)")
# 呼び出し: CreateRenderAudioStateMonitorForCategory(category, audioStateMonitor)
# category : AUDIO_STREAM_CATEGORY -> "int"
# audioStateMonitor : IAudioStateMonitor** 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)。