lineParkW

// TAPI32.dll  (Unicode / -W)
#include <windows.h>

INT lineParkW(
    DWORD hCall,
    DWORD dwParkMode,
    LPCWSTR lpszDirAddress,
    VARSTRING* lpNonDirAddress
);

<DllImport("TAPI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function lineParkW(
    hCall As UInteger,   ' DWORD
    dwParkMode As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> lpszDirAddress As String,   ' LPCWSTR
    lpNonDirAddress As IntPtr   ' VARSTRING* in/out
) As Integer
End Function

' hCall : DWORD
' dwParkMode : DWORD
' lpszDirAddress : LPCWSTR
' lpNonDirAddress : VARSTRING* in/out
Declare PtrSafe Function lineParkW Lib "tapi32" ( _
    ByVal hCall As Long, _
    ByVal dwParkMode As Long, _
    ByVal lpszDirAddress As LongPtr, _
    ByVal lpNonDirAddress 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

lineParkW = ctypes.windll.tapi32.lineParkW
lineParkW.restype = ctypes.c_int
lineParkW.argtypes = [
    wintypes.DWORD,  # hCall : DWORD
    wintypes.DWORD,  # dwParkMode : DWORD
    wintypes.LPCWSTR,  # lpszDirAddress : LPCWSTR
    ctypes.c_void_p,  # lpNonDirAddress : VARSTRING* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('TAPI32.dll')
lineParkW = Fiddle::Function.new(
  lib['lineParkW'],
  [
    -Fiddle::TYPE_INT,  # hCall : DWORD
    -Fiddle::TYPE_INT,  # dwParkMode : DWORD
    Fiddle::TYPE_VOIDP,  # lpszDirAddress : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpNonDirAddress : VARSTRING* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "tapi32")]
extern "system" {
    fn lineParkW(
        hCall: u32,  // DWORD
        dwParkMode: u32,  // DWORD
        lpszDirAddress: *const u16,  // LPCWSTR
        lpNonDirAddress: *mut VARSTRING  // VARSTRING* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("TAPI32.dll", CharSet = CharSet.Unicode)]
public static extern int lineParkW(uint hCall, uint dwParkMode, [MarshalAs(UnmanagedType.LPWStr)] string lpszDirAddress, IntPtr lpNonDirAddress);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TAPI32_lineParkW' -Namespace Win32 -PassThru
# $api::lineParkW(hCall, dwParkMode, lpszDirAddress, lpNonDirAddress)

#uselib "TAPI32.dll"
#func global lineParkW "lineParkW" wptr, wptr, wptr, wptr
; lineParkW hCall, dwParkMode, lpszDirAddress, varptr(lpNonDirAddress)   ; 戻り値は stat
; hCall : DWORD -> "wptr"
; dwParkMode : DWORD -> "wptr"
; lpszDirAddress : LPCWSTR -> "wptr"
; lpNonDirAddress : VARSTRING* in/out -> "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 "TAPI32.dll"
#cfunc global lineParkW "lineParkW" int, int, wstr, var
; res = lineParkW(hCall, dwParkMode, lpszDirAddress, lpNonDirAddress)
; hCall : DWORD -> "int"
; dwParkMode : DWORD -> "int"
; lpszDirAddress : LPCWSTR -> "wstr"
; lpNonDirAddress : VARSTRING* in/out -> "var"
; ※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。

; INT lineParkW(DWORD hCall, DWORD dwParkMode, LPCWSTR lpszDirAddress, VARSTRING* lpNonDirAddress)
#uselib "TAPI32.dll"
#cfunc global lineParkW "lineParkW" int, int, wstr, var
; res = lineParkW(hCall, dwParkMode, lpszDirAddress, lpNonDirAddress)
; hCall : DWORD -> "int"
; dwParkMode : DWORD -> "int"
; lpszDirAddress : LPCWSTR -> "wstr"
; lpNonDirAddress : VARSTRING* in/out -> "var"
; ※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 (
	tapi32 = windows.NewLazySystemDLL("TAPI32.dll")
	proclineParkW = tapi32.NewProc("lineParkW")
)

// hCall (DWORD), dwParkMode (DWORD), lpszDirAddress (LPCWSTR), lpNonDirAddress (VARSTRING* in/out)
r1, _, err := proclineParkW.Call(
	uintptr(hCall),
	uintptr(dwParkMode),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszDirAddress))),
	uintptr(lpNonDirAddress),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function lineParkW(
  hCall: DWORD;   // DWORD
  dwParkMode: DWORD;   // DWORD
  lpszDirAddress: PWideChar;   // LPCWSTR
  lpNonDirAddress: Pointer   // VARSTRING* in/out
): Integer; stdcall;
  external 'TAPI32.dll' name 'lineParkW';

result := DllCall("TAPI32\lineParkW"
    , "UInt", hCall   ; DWORD
    , "UInt", dwParkMode   ; DWORD
    , "WStr", lpszDirAddress   ; LPCWSTR
    , "Ptr", lpNonDirAddress   ; VARSTRING* in/out
    , "Int")   ; return: INT

●lineParkW(hCall, dwParkMode, lpszDirAddress, lpNonDirAddress) = DLL("TAPI32.dll", "int lineParkW(dword, dword, char*, void*)")
# 呼び出し: lineParkW(hCall, dwParkMode, lpszDirAddress, lpNonDirAddress)
# hCall : DWORD -> "dword"
# dwParkMode : DWORD -> "dword"
# lpszDirAddress : LPCWSTR -> "char*"
# lpNonDirAddress : VARSTRING* in/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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。