lineAddProviderW

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

INT lineAddProviderW(
    LPCWSTR lpszProviderFilename,
    HWND hwndOwner,
    DWORD* lpdwPermanentProviderID
);

<DllImport("TAPI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function lineAddProviderW(
    <MarshalAs(UnmanagedType.LPWStr)> lpszProviderFilename As String,   ' LPCWSTR
    hwndOwner As IntPtr,   ' HWND
    ByRef lpdwPermanentProviderID As UInteger   ' DWORD* in/out
) As Integer
End Function

' lpszProviderFilename : LPCWSTR
' hwndOwner : HWND
' lpdwPermanentProviderID : DWORD* in/out
Declare PtrSafe Function lineAddProviderW Lib "tapi32" ( _
    ByVal lpszProviderFilename As LongPtr, _
    ByVal hwndOwner As LongPtr, _
    ByRef lpdwPermanentProviderID As Long) 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

lineAddProviderW = ctypes.windll.tapi32.lineAddProviderW
lineAddProviderW.restype = ctypes.c_int
lineAddProviderW.argtypes = [
    wintypes.LPCWSTR,  # lpszProviderFilename : LPCWSTR
    wintypes.HANDLE,  # hwndOwner : HWND
    ctypes.POINTER(wintypes.DWORD),  # lpdwPermanentProviderID : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('TAPI32.dll')
lineAddProviderW = Fiddle::Function.new(
  lib['lineAddProviderW'],
  [
    Fiddle::TYPE_VOIDP,  # lpszProviderFilename : LPCWSTR
    Fiddle::TYPE_VOIDP,  # hwndOwner : HWND
    Fiddle::TYPE_VOIDP,  # lpdwPermanentProviderID : DWORD* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "tapi32")]
extern "system" {
    fn lineAddProviderW(
        lpszProviderFilename: *const u16,  // LPCWSTR
        hwndOwner: *mut core::ffi::c_void,  // HWND
        lpdwPermanentProviderID: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("TAPI32.dll", CharSet = CharSet.Unicode)]
public static extern int lineAddProviderW([MarshalAs(UnmanagedType.LPWStr)] string lpszProviderFilename, IntPtr hwndOwner, ref uint lpdwPermanentProviderID);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TAPI32_lineAddProviderW' -Namespace Win32 -PassThru
# $api::lineAddProviderW(lpszProviderFilename, hwndOwner, lpdwPermanentProviderID)

#uselib "TAPI32.dll"
#func global lineAddProviderW "lineAddProviderW" wptr, wptr, wptr
; lineAddProviderW lpszProviderFilename, hwndOwner, varptr(lpdwPermanentProviderID)   ; 戻り値は stat
; lpszProviderFilename : LPCWSTR -> "wptr"
; hwndOwner : HWND -> "wptr"
; lpdwPermanentProviderID : DWORD* 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 lineAddProviderW "lineAddProviderW" wstr, sptr, var
; res = lineAddProviderW(lpszProviderFilename, hwndOwner, lpdwPermanentProviderID)
; lpszProviderFilename : LPCWSTR -> "wstr"
; hwndOwner : HWND -> "sptr"
; lpdwPermanentProviderID : DWORD* 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 lineAddProviderW(LPCWSTR lpszProviderFilename, HWND hwndOwner, DWORD* lpdwPermanentProviderID)
#uselib "TAPI32.dll"
#cfunc global lineAddProviderW "lineAddProviderW" wstr, intptr, var
; res = lineAddProviderW(lpszProviderFilename, hwndOwner, lpdwPermanentProviderID)
; lpszProviderFilename : LPCWSTR -> "wstr"
; hwndOwner : HWND -> "intptr"
; lpdwPermanentProviderID : DWORD* 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")
	proclineAddProviderW = tapi32.NewProc("lineAddProviderW")
)

// lpszProviderFilename (LPCWSTR), hwndOwner (HWND), lpdwPermanentProviderID (DWORD* in/out)
r1, _, err := proclineAddProviderW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszProviderFilename))),
	uintptr(hwndOwner),
	uintptr(lpdwPermanentProviderID),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function lineAddProviderW(
  lpszProviderFilename: PWideChar;   // LPCWSTR
  hwndOwner: THandle;   // HWND
  lpdwPermanentProviderID: Pointer   // DWORD* in/out
): Integer; stdcall;
  external 'TAPI32.dll' name 'lineAddProviderW';

result := DllCall("TAPI32\lineAddProviderW"
    , "WStr", lpszProviderFilename   ; LPCWSTR
    , "Ptr", hwndOwner   ; HWND
    , "Ptr", lpdwPermanentProviderID   ; DWORD* in/out
    , "Int")   ; return: INT

●lineAddProviderW(lpszProviderFilename, hwndOwner, lpdwPermanentProviderID) = DLL("TAPI32.dll", "int lineAddProviderW(char*, void*, void*)")
# 呼び出し: lineAddProviderW(lpszProviderFilename, hwndOwner, lpdwPermanentProviderID)
# lpszProviderFilename : LPCWSTR -> "char*"
# hwndOwner : HWND -> "void*"
# lpdwPermanentProviderID : DWORD* 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。