TcOpenInterfaceW

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

DWORD TcOpenInterfaceW(
    LPWSTR pInterfaceName,
    HANDLE ClientHandle,
    HANDLE ClIfcCtx,
    HANDLE* pIfcHandle
);

<DllImport("TRAFFIC.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function TcOpenInterfaceW(
    <MarshalAs(UnmanagedType.LPWStr)> pInterfaceName As String,   ' LPWSTR
    ClientHandle As IntPtr,   ' HANDLE
    ClIfcCtx As IntPtr,   ' HANDLE
    pIfcHandle As IntPtr   ' HANDLE* out
) As UInteger
End Function

' pInterfaceName : LPWSTR
' ClientHandle : HANDLE
' ClIfcCtx : HANDLE
' pIfcHandle : HANDLE* out
Declare PtrSafe Function TcOpenInterfaceW Lib "traffic" ( _
    ByVal pInterfaceName As LongPtr, _
    ByVal ClientHandle As LongPtr, _
    ByVal ClIfcCtx As LongPtr, _
    ByVal pIfcHandle 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

TcOpenInterfaceW = ctypes.windll.traffic.TcOpenInterfaceW
TcOpenInterfaceW.restype = wintypes.DWORD
TcOpenInterfaceW.argtypes = [
    wintypes.LPCWSTR,  # pInterfaceName : LPWSTR
    wintypes.HANDLE,  # ClientHandle : HANDLE
    wintypes.HANDLE,  # ClIfcCtx : HANDLE
    ctypes.c_void_p,  # pIfcHandle : HANDLE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('TRAFFIC.dll')
TcOpenInterfaceW = Fiddle::Function.new(
  lib['TcOpenInterfaceW'],
  [
    Fiddle::TYPE_VOIDP,  # pInterfaceName : LPWSTR
    Fiddle::TYPE_VOIDP,  # ClientHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # ClIfcCtx : HANDLE
    Fiddle::TYPE_VOIDP,  # pIfcHandle : HANDLE* out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "traffic")]
extern "system" {
    fn TcOpenInterfaceW(
        pInterfaceName: *mut u16,  // LPWSTR
        ClientHandle: *mut core::ffi::c_void,  // HANDLE
        ClIfcCtx: *mut core::ffi::c_void,  // HANDLE
        pIfcHandle: *mut *mut core::ffi::c_void  // HANDLE* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("TRAFFIC.dll", CharSet = CharSet.Unicode)]
public static extern uint TcOpenInterfaceW([MarshalAs(UnmanagedType.LPWStr)] string pInterfaceName, IntPtr ClientHandle, IntPtr ClIfcCtx, IntPtr pIfcHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TRAFFIC_TcOpenInterfaceW' -Namespace Win32 -PassThru
# $api::TcOpenInterfaceW(pInterfaceName, ClientHandle, ClIfcCtx, pIfcHandle)

#uselib "TRAFFIC.dll"
#func global TcOpenInterfaceW "TcOpenInterfaceW" wptr, wptr, wptr, wptr
; TcOpenInterfaceW pInterfaceName, ClientHandle, ClIfcCtx, pIfcHandle   ; 戻り値は stat
; pInterfaceName : LPWSTR -> "wptr"
; ClientHandle : HANDLE -> "wptr"
; ClIfcCtx : HANDLE -> "wptr"
; pIfcHandle : HANDLE* 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 "TRAFFIC.dll"
#cfunc global TcOpenInterfaceW "TcOpenInterfaceW" wstr, sptr, sptr, sptr
; res = TcOpenInterfaceW(pInterfaceName, ClientHandle, ClIfcCtx, pIfcHandle)
; pInterfaceName : LPWSTR -> "wstr"
; ClientHandle : HANDLE -> "sptr"
; ClIfcCtx : HANDLE -> "sptr"
; pIfcHandle : HANDLE* out -> "sptr"

; DWORD TcOpenInterfaceW(LPWSTR pInterfaceName, HANDLE ClientHandle, HANDLE ClIfcCtx, HANDLE* pIfcHandle)
#uselib "TRAFFIC.dll"
#cfunc global TcOpenInterfaceW "TcOpenInterfaceW" wstr, intptr, intptr, intptr
; res = TcOpenInterfaceW(pInterfaceName, ClientHandle, ClIfcCtx, pIfcHandle)
; pInterfaceName : LPWSTR -> "wstr"
; ClientHandle : HANDLE -> "intptr"
; ClIfcCtx : HANDLE -> "intptr"
; pIfcHandle : HANDLE* out -> "intptr"

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

var (
	traffic = windows.NewLazySystemDLL("TRAFFIC.dll")
	procTcOpenInterfaceW = traffic.NewProc("TcOpenInterfaceW")
)

// pInterfaceName (LPWSTR), ClientHandle (HANDLE), ClIfcCtx (HANDLE), pIfcHandle (HANDLE* out)
r1, _, err := procTcOpenInterfaceW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pInterfaceName))),
	uintptr(ClientHandle),
	uintptr(ClIfcCtx),
	uintptr(pIfcHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function TcOpenInterfaceW(
  pInterfaceName: PWideChar;   // LPWSTR
  ClientHandle: THandle;   // HANDLE
  ClIfcCtx: THandle;   // HANDLE
  pIfcHandle: Pointer   // HANDLE* out
): DWORD; stdcall;
  external 'TRAFFIC.dll' name 'TcOpenInterfaceW';

result := DllCall("TRAFFIC\TcOpenInterfaceW"
    , "WStr", pInterfaceName   ; LPWSTR
    , "Ptr", ClientHandle   ; HANDLE
    , "Ptr", ClIfcCtx   ; HANDLE
    , "Ptr", pIfcHandle   ; HANDLE* out
    , "UInt")   ; return: DWORD

●TcOpenInterfaceW(pInterfaceName, ClientHandle, ClIfcCtx, pIfcHandle) = DLL("TRAFFIC.dll", "dword TcOpenInterfaceW(char*, void*, void*, void*)")
# 呼び出し: TcOpenInterfaceW(pInterfaceName, ClientHandle, ClIfcCtx, pIfcHandle)
# pInterfaceName : LPWSTR -> "char*"
# ClientHandle : HANDLE -> "void*"
# ClIfcCtx : HANDLE -> "void*"
# pIfcHandle : HANDLE* 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。