TcDeleteFlow

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

DWORD TcDeleteFlow(
    HANDLE FlowHandle
);

<DllImport("TRAFFIC.dll", ExactSpelling:=True)>
Public Shared Function TcDeleteFlow(
    FlowHandle As IntPtr   ' HANDLE
) As UInteger
End Function

' FlowHandle : HANDLE
Declare PtrSafe Function TcDeleteFlow Lib "traffic" ( _
    ByVal FlowHandle 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

TcDeleteFlow = ctypes.windll.traffic.TcDeleteFlow
TcDeleteFlow.restype = wintypes.DWORD
TcDeleteFlow.argtypes = [
    wintypes.HANDLE,  # FlowHandle : HANDLE
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('TRAFFIC.dll')
TcDeleteFlow = Fiddle::Function.new(
  lib['TcDeleteFlow'],
  [
    Fiddle::TYPE_VOIDP,  # FlowHandle : HANDLE
  ],
  -Fiddle::TYPE_INT)

#[link(name = "traffic")]
extern "system" {
    fn TcDeleteFlow(
        FlowHandle: *mut core::ffi::c_void  // HANDLE
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("TRAFFIC.dll")]
public static extern uint TcDeleteFlow(IntPtr FlowHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TRAFFIC_TcDeleteFlow' -Namespace Win32 -PassThru
# $api::TcDeleteFlow(FlowHandle)

#uselib "TRAFFIC.dll"
#func global TcDeleteFlow "TcDeleteFlow" sptr
; TcDeleteFlow FlowHandle   ; 戻り値は stat
; FlowHandle : HANDLE -> "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 TcDeleteFlow "TcDeleteFlow" sptr
; res = TcDeleteFlow(FlowHandle)
; FlowHandle : HANDLE -> "sptr"

; DWORD TcDeleteFlow(HANDLE FlowHandle)
#uselib "TRAFFIC.dll"
#cfunc global TcDeleteFlow "TcDeleteFlow" intptr
; res = TcDeleteFlow(FlowHandle)
; FlowHandle : HANDLE -> "intptr"

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

var (
	traffic = windows.NewLazySystemDLL("TRAFFIC.dll")
	procTcDeleteFlow = traffic.NewProc("TcDeleteFlow")
)

// FlowHandle (HANDLE)
r1, _, err := procTcDeleteFlow.Call(
	uintptr(FlowHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function TcDeleteFlow(
  FlowHandle: THandle   // HANDLE
): DWORD; stdcall;
  external 'TRAFFIC.dll' name 'TcDeleteFlow';

result := DllCall("TRAFFIC\TcDeleteFlow"
    , "Ptr", FlowHandle   ; HANDLE
    , "UInt")   ; return: DWORD

●TcDeleteFlow(FlowHandle) = DLL("TRAFFIC.dll", "dword TcDeleteFlow(void*)")
# 呼び出し: TcDeleteFlow(FlowHandle)
# FlowHandle : HANDLE -> "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)。

const std = @import("std");

extern "traffic" fn TcDeleteFlow(
    FlowHandle: ?*anyopaque // HANDLE
) callconv(std.os.windows.WINAPI) u32;

proc TcDeleteFlow(
    FlowHandle: pointer  # HANDLE
): uint32 {.importc: "TcDeleteFlow", stdcall, dynlib: "TRAFFIC.dll".}

pragma(lib, "traffic");
extern(Windows)
uint TcDeleteFlow(
    void* FlowHandle   // HANDLE
);

ccall((:TcDeleteFlow, "TRAFFIC.dll"), stdcall, UInt32,
      (Ptr{Cvoid},),
      FlowHandle)
# FlowHandle : HANDLE -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t TcDeleteFlow(
    void* FlowHandle);
]]
local traffic = ffi.load("traffic")
-- traffic.TcDeleteFlow(FlowHandle)
-- FlowHandle : HANDLE
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('TRAFFIC.dll');
const TcDeleteFlow = lib.func('__stdcall', 'TcDeleteFlow', 'uint32_t', ['void *']);
// TcDeleteFlow(FlowHandle)
// FlowHandle : HANDLE -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("TRAFFIC.dll", {
  TcDeleteFlow: { parameters: ["pointer"], result: "u32" },
});
// lib.symbols.TcDeleteFlow(FlowHandle)
// FlowHandle : HANDLE -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t TcDeleteFlow(
    void* FlowHandle);
C, "TRAFFIC.dll");
// $ffi->TcDeleteFlow(FlowHandle);
// FlowHandle : HANDLE
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Traffic extends StdCallLibrary {
    Traffic INSTANCE = Native.load("traffic", Traffic.class);
    int TcDeleteFlow(
        Pointer FlowHandle   // HANDLE
    );
}

@[Link("traffic")]
lib LibTRAFFIC
  fun TcDeleteFlow = TcDeleteFlow(
    FlowHandle : Void*   # HANDLE
  ) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef TcDeleteFlowNative = Uint32 Function(Pointer<Void>);
typedef TcDeleteFlowDart = int Function(Pointer<Void>);
final TcDeleteFlow = DynamicLibrary.open('TRAFFIC.dll')
    .lookupFunction<TcDeleteFlowNative, TcDeleteFlowDart>('TcDeleteFlow');
// FlowHandle : HANDLE -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function TcDeleteFlow(
  FlowHandle: THandle   // HANDLE
): DWORD; stdcall;
  external 'TRAFFIC.dll' name 'TcDeleteFlow';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "TcDeleteFlow"
  c_TcDeleteFlow :: Ptr () -> IO Word32
-- FlowHandle : HANDLE -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let tcdeleteflow =
  foreign "TcDeleteFlow"
    ((ptr void) @-> returning uint32_t)
(* FlowHandle : HANDLE -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library traffic (t "TRAFFIC.dll"))
(cffi:use-foreign-library traffic)

(cffi:defcfun ("TcDeleteFlow" tc-delete-flow :convention :stdcall) :uint32
  (flow-handle :pointer))   ; HANDLE
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $TcDeleteFlow = Win32::API::More->new('TRAFFIC',
    'DWORD TcDeleteFlow(HANDLE FlowHandle)');
# my $ret = $TcDeleteFlow->Call($FlowHandle);
# FlowHandle : HANDLE -> HANDLE
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。