TcRegisterClient

// TRAFFIC.dll
#include <windows.h>

DWORD TcRegisterClient(
    DWORD TciVersion,
    HANDLE ClRegCtx,
    TCI_CLIENT_FUNC_LIST* ClientHandlerList,
    HANDLE* pClientHandle
);

<DllImport("TRAFFIC.dll", ExactSpelling:=True)>
Public Shared Function TcRegisterClient(
    TciVersion As UInteger,   ' DWORD
    ClRegCtx As IntPtr,   ' HANDLE
    ClientHandlerList As IntPtr,   ' TCI_CLIENT_FUNC_LIST*
    pClientHandle As IntPtr   ' HANDLE* out
) As UInteger
End Function

' TciVersion : DWORD
' ClRegCtx : HANDLE
' ClientHandlerList : TCI_CLIENT_FUNC_LIST*
' pClientHandle : HANDLE* out
Declare PtrSafe Function TcRegisterClient Lib "traffic" ( _
    ByVal TciVersion As Long, _
    ByVal ClRegCtx As LongPtr, _
    ByVal ClientHandlerList As LongPtr, _
    ByVal pClientHandle 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

TcRegisterClient = ctypes.windll.traffic.TcRegisterClient
TcRegisterClient.restype = wintypes.DWORD
TcRegisterClient.argtypes = [
    wintypes.DWORD,  # TciVersion : DWORD
    wintypes.HANDLE,  # ClRegCtx : HANDLE
    ctypes.c_void_p,  # ClientHandlerList : TCI_CLIENT_FUNC_LIST*
    ctypes.c_void_p,  # pClientHandle : HANDLE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('TRAFFIC.dll')
TcRegisterClient = Fiddle::Function.new(
  lib['TcRegisterClient'],
  [
    -Fiddle::TYPE_INT,  # TciVersion : DWORD
    Fiddle::TYPE_VOIDP,  # ClRegCtx : HANDLE
    Fiddle::TYPE_VOIDP,  # ClientHandlerList : TCI_CLIENT_FUNC_LIST*
    Fiddle::TYPE_VOIDP,  # pClientHandle : HANDLE* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "traffic")]
extern "system" {
    fn TcRegisterClient(
        TciVersion: u32,  // DWORD
        ClRegCtx: *mut core::ffi::c_void,  // HANDLE
        ClientHandlerList: *mut TCI_CLIENT_FUNC_LIST,  // TCI_CLIENT_FUNC_LIST*
        pClientHandle: *mut *mut core::ffi::c_void  // HANDLE* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("TRAFFIC.dll")]
public static extern uint TcRegisterClient(uint TciVersion, IntPtr ClRegCtx, IntPtr ClientHandlerList, IntPtr pClientHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TRAFFIC_TcRegisterClient' -Namespace Win32 -PassThru
# $api::TcRegisterClient(TciVersion, ClRegCtx, ClientHandlerList, pClientHandle)

#uselib "TRAFFIC.dll"
#func global TcRegisterClient "TcRegisterClient" sptr, sptr, sptr, sptr
; TcRegisterClient TciVersion, ClRegCtx, varptr(ClientHandlerList), pClientHandle   ; 戻り値は stat
; TciVersion : DWORD -> "sptr"
; ClRegCtx : HANDLE -> "sptr"
; ClientHandlerList : TCI_CLIENT_FUNC_LIST* -> "sptr"
; pClientHandle : 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 TcRegisterClient "TcRegisterClient" int, sptr, var, sptr
; res = TcRegisterClient(TciVersion, ClRegCtx, ClientHandlerList, pClientHandle)
; TciVersion : DWORD -> "int"
; ClRegCtx : HANDLE -> "sptr"
; ClientHandlerList : TCI_CLIENT_FUNC_LIST* -> "var"
; pClientHandle : HANDLE* out -> "sptr"
; ※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。

; DWORD TcRegisterClient(DWORD TciVersion, HANDLE ClRegCtx, TCI_CLIENT_FUNC_LIST* ClientHandlerList, HANDLE* pClientHandle)
#uselib "TRAFFIC.dll"
#cfunc global TcRegisterClient "TcRegisterClient" int, intptr, var, intptr
; res = TcRegisterClient(TciVersion, ClRegCtx, ClientHandlerList, pClientHandle)
; TciVersion : DWORD -> "int"
; ClRegCtx : HANDLE -> "intptr"
; ClientHandlerList : TCI_CLIENT_FUNC_LIST* -> "var"
; pClientHandle : HANDLE* out -> "intptr"
; ※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 (
	traffic = windows.NewLazySystemDLL("TRAFFIC.dll")
	procTcRegisterClient = traffic.NewProc("TcRegisterClient")
)

// TciVersion (DWORD), ClRegCtx (HANDLE), ClientHandlerList (TCI_CLIENT_FUNC_LIST*), pClientHandle (HANDLE* out)
r1, _, err := procTcRegisterClient.Call(
	uintptr(TciVersion),
	uintptr(ClRegCtx),
	uintptr(ClientHandlerList),
	uintptr(pClientHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function TcRegisterClient(
  TciVersion: DWORD;   // DWORD
  ClRegCtx: THandle;   // HANDLE
  ClientHandlerList: Pointer;   // TCI_CLIENT_FUNC_LIST*
  pClientHandle: Pointer   // HANDLE* out
): DWORD; stdcall;
  external 'TRAFFIC.dll' name 'TcRegisterClient';

result := DllCall("TRAFFIC\TcRegisterClient"
    , "UInt", TciVersion   ; DWORD
    , "Ptr", ClRegCtx   ; HANDLE
    , "Ptr", ClientHandlerList   ; TCI_CLIENT_FUNC_LIST*
    , "Ptr", pClientHandle   ; HANDLE* out
    , "UInt")   ; return: DWORD

●TcRegisterClient(TciVersion, ClRegCtx, ClientHandlerList, pClientHandle) = DLL("TRAFFIC.dll", "dword TcRegisterClient(dword, void*, void*, void*)")
# 呼び出し: TcRegisterClient(TciVersion, ClRegCtx, ClientHandlerList, pClientHandle)
# TciVersion : DWORD -> "dword"
# ClRegCtx : HANDLE -> "void*"
# ClientHandlerList : TCI_CLIENT_FUNC_LIST* -> "void*"
# pClientHandle : 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)。