mciGetDeviceIDW

// WINMM.dll  (Unicode / -W)
#include <windows.h>

DWORD mciGetDeviceIDW(
    LPCWSTR pszDevice
);

<DllImport("WINMM.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function mciGetDeviceIDW(
    <MarshalAs(UnmanagedType.LPWStr)> pszDevice As String   ' LPCWSTR
) As UInteger
End Function

' pszDevice : LPCWSTR
Declare PtrSafe Function mciGetDeviceIDW Lib "winmm" ( _
    ByVal pszDevice As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

mciGetDeviceIDW = ctypes.windll.winmm.mciGetDeviceIDW
mciGetDeviceIDW.restype = wintypes.DWORD
mciGetDeviceIDW.argtypes = [
    wintypes.LPCWSTR,  # pszDevice : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
mciGetDeviceIDW = Fiddle::Function.new(
  lib['mciGetDeviceIDW'],
  [
    Fiddle::TYPE_VOIDP,  # pszDevice : LPCWSTR
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winmm")]
extern "system" {
    fn mciGetDeviceIDW(
        pszDevice: *const u16  // LPCWSTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINMM.dll", CharSet = CharSet.Unicode)]
public static extern uint mciGetDeviceIDW([MarshalAs(UnmanagedType.LPWStr)] string pszDevice);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINMM_mciGetDeviceIDW' -Namespace Win32 -PassThru
# $api::mciGetDeviceIDW(pszDevice)

#uselib "WINMM.dll"
#func global mciGetDeviceIDW "mciGetDeviceIDW" wptr
; mciGetDeviceIDW pszDevice   ; 戻り値は stat
; pszDevice : LPCWSTR -> "wptr"
; ※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 "WINMM.dll"
#cfunc global mciGetDeviceIDW "mciGetDeviceIDW" wstr
; res = mciGetDeviceIDW(pszDevice)
; pszDevice : LPCWSTR -> "wstr"

; DWORD mciGetDeviceIDW(LPCWSTR pszDevice)
#uselib "WINMM.dll"
#cfunc global mciGetDeviceIDW "mciGetDeviceIDW" wstr
; res = mciGetDeviceIDW(pszDevice)
; pszDevice : LPCWSTR -> "wstr"

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

var (
	winmm = windows.NewLazySystemDLL("WINMM.dll")
	procmciGetDeviceIDW = winmm.NewProc("mciGetDeviceIDW")
)

// pszDevice (LPCWSTR)
r1, _, err := procmciGetDeviceIDW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszDevice))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function mciGetDeviceIDW(
  pszDevice: PWideChar   // LPCWSTR
): DWORD; stdcall;
  external 'WINMM.dll' name 'mciGetDeviceIDW';

result := DllCall("WINMM\mciGetDeviceIDW"
    , "WStr", pszDevice   ; LPCWSTR
    , "UInt")   ; return: DWORD

●mciGetDeviceIDW(pszDevice) = DLL("WINMM.dll", "dword mciGetDeviceIDW(char*)")
# 呼び出し: mciGetDeviceIDW(pszDevice)
# pszDevice : LPCWSTR -> "char*"
# 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。