TcOpenInterfaceA

// TRAFFIC.dll  (ANSI / -A)
#include <windows.h>

DWORD TcOpenInterfaceA(
    LPSTR pInterfaceName,
    HANDLE ClientHandle,
    HANDLE ClIfcCtx,
    HANDLE* pIfcHandle
);

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

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

TcOpenInterfaceA = ctypes.windll.traffic.TcOpenInterfaceA
TcOpenInterfaceA.restype = wintypes.DWORD
TcOpenInterfaceA.argtypes = [
    wintypes.LPCSTR,  # pInterfaceName : LPSTR
    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')
TcOpenInterfaceA = Fiddle::Function.new(
  lib['TcOpenInterfaceA'],
  [
    Fiddle::TYPE_VOIDP,  # pInterfaceName : LPSTR
    Fiddle::TYPE_VOIDP,  # ClientHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # ClIfcCtx : HANDLE
    Fiddle::TYPE_VOIDP,  # pIfcHandle : HANDLE* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "traffic")]
extern "system" {
    fn TcOpenInterfaceA(
        pInterfaceName: *mut u8,  // LPSTR
        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.Ansi)]
public static extern uint TcOpenInterfaceA([MarshalAs(UnmanagedType.LPStr)] string pInterfaceName, IntPtr ClientHandle, IntPtr ClIfcCtx, IntPtr pIfcHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TRAFFIC_TcOpenInterfaceA' -Namespace Win32 -PassThru
# $api::TcOpenInterfaceA(pInterfaceName, ClientHandle, ClIfcCtx, pIfcHandle)

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

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

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

var (
	traffic = windows.NewLazySystemDLL("TRAFFIC.dll")
	procTcOpenInterfaceA = traffic.NewProc("TcOpenInterfaceA")
)

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

function TcOpenInterfaceA(
  pInterfaceName: PAnsiChar;   // LPSTR
  ClientHandle: THandle;   // HANDLE
  ClIfcCtx: THandle;   // HANDLE
  pIfcHandle: Pointer   // HANDLE* out
): DWORD; stdcall;
  external 'TRAFFIC.dll' name 'TcOpenInterfaceA';

result := DllCall("TRAFFIC\TcOpenInterfaceA"
    , "AStr", pInterfaceName   ; LPSTR
    , "Ptr", ClientHandle   ; HANDLE
    , "Ptr", ClIfcCtx   ; HANDLE
    , "Ptr", pIfcHandle   ; HANDLE* out
    , "UInt")   ; return: DWORD

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