FlushIpPathTable

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

WIN32_ERROR FlushIpPathTable(
    ADDRESS_FAMILY Family
);

<DllImport("IPHLPAPI.dll", ExactSpelling:=True)>
Public Shared Function FlushIpPathTable(
    Family As UShort   ' ADDRESS_FAMILY
) As UInteger
End Function

' Family : ADDRESS_FAMILY
Declare PtrSafe Function FlushIpPathTable Lib "iphlpapi" ( _
    ByVal Family As Integer) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

FlushIpPathTable = ctypes.windll.iphlpapi.FlushIpPathTable
FlushIpPathTable.restype = wintypes.DWORD
FlushIpPathTable.argtypes = [
    ctypes.c_ushort,  # Family : ADDRESS_FAMILY
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('IPHLPAPI.dll')
FlushIpPathTable = Fiddle::Function.new(
  lib['FlushIpPathTable'],
  [
    -Fiddle::TYPE_SHORT,  # Family : ADDRESS_FAMILY
  ],
  -Fiddle::TYPE_INT)

#[link(name = "iphlpapi")]
extern "system" {
    fn FlushIpPathTable(
        Family: u16  // ADDRESS_FAMILY
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("IPHLPAPI.dll")]
public static extern uint FlushIpPathTable(ushort Family);
"@
$api = Add-Type -MemberDefinition $sig -Name 'IPHLPAPI_FlushIpPathTable' -Namespace Win32 -PassThru
# $api::FlushIpPathTable(Family)

#uselib "IPHLPAPI.dll"
#func global FlushIpPathTable "FlushIpPathTable" sptr
; FlushIpPathTable Family   ; 戻り値は stat
; Family : ADDRESS_FAMILY -> "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 "IPHLPAPI.dll"
#cfunc global FlushIpPathTable "FlushIpPathTable" int
; res = FlushIpPathTable(Family)
; Family : ADDRESS_FAMILY -> "int"

; WIN32_ERROR FlushIpPathTable(ADDRESS_FAMILY Family)
#uselib "IPHLPAPI.dll"
#cfunc global FlushIpPathTable "FlushIpPathTable" int
; res = FlushIpPathTable(Family)
; Family : ADDRESS_FAMILY -> "int"

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

var (
	iphlpapi = windows.NewLazySystemDLL("IPHLPAPI.dll")
	procFlushIpPathTable = iphlpapi.NewProc("FlushIpPathTable")
)

// Family (ADDRESS_FAMILY)
r1, _, err := procFlushIpPathTable.Call(
	uintptr(Family),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function FlushIpPathTable(
  Family: Word   // ADDRESS_FAMILY
): DWORD; stdcall;
  external 'IPHLPAPI.dll' name 'FlushIpPathTable';

result := DllCall("IPHLPAPI\FlushIpPathTable"
    , "UShort", Family   ; ADDRESS_FAMILY
    , "UInt")   ; return: WIN32_ERROR

●FlushIpPathTable(Family) = DLL("IPHLPAPI.dll", "dword FlushIpPathTable(int)")
# 呼び出し: FlushIpPathTable(Family)
# Family : ADDRESS_FAMILY -> "int"
# 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)。