TcDeleteFilter

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

DWORD TcDeleteFilter(
    HANDLE FilterHandle
);

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

' FilterHandle : HANDLE
Declare PtrSafe Function TcDeleteFilter Lib "traffic" ( _
    ByVal FilterHandle 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

TcDeleteFilter = ctypes.windll.traffic.TcDeleteFilter
TcDeleteFilter.restype = wintypes.DWORD
TcDeleteFilter.argtypes = [
    wintypes.HANDLE,  # FilterHandle : HANDLE
]

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "traffic")]
extern "system" {
    fn TcDeleteFilter(
        FilterHandle: *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 TcDeleteFilter(IntPtr FilterHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'TRAFFIC_TcDeleteFilter' -Namespace Win32 -PassThru
# $api::TcDeleteFilter(FilterHandle)

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

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

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

var (
	traffic = windows.NewLazySystemDLL("TRAFFIC.dll")
	procTcDeleteFilter = traffic.NewProc("TcDeleteFilter")
)

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

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

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

●TcDeleteFilter(FilterHandle) = DLL("TRAFFIC.dll", "dword TcDeleteFilter(void*)")
# 呼び出し: TcDeleteFilter(FilterHandle)
# FilterHandle : 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)。