McastApiCleanup

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

void McastApiCleanup(void);

<DllImport("dhcpcsvc.dll", ExactSpelling:=True)>
Public Shared Sub McastApiCleanup()
End Sub

Declare PtrSafe Sub McastApiCleanup Lib "dhcpcsvc" ()
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

McastApiCleanup = ctypes.windll.dhcpcsvc.McastApiCleanup
McastApiCleanup.restype = None
McastApiCleanup.argtypes = []

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dhcpcsvc.dll')
McastApiCleanup = Fiddle::Function.new(
  lib['McastApiCleanup'],
  [],
  Fiddle::TYPE_VOID)

#[link(name = "dhcpcsvc")]
extern "system" {
    fn McastApiCleanup();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dhcpcsvc.dll")]
public static extern void McastApiCleanup();
"@
$api = Add-Type -MemberDefinition $sig -Name 'dhcpcsvc_McastApiCleanup' -Namespace Win32 -PassThru
# $api::McastApiCleanup()

#uselib "dhcpcsvc.dll"
#func global McastApiCleanup "McastApiCleanup"
; McastApiCleanup

#uselib "dhcpcsvc.dll"
#func global McastApiCleanup "McastApiCleanup"
; McastApiCleanup

; void McastApiCleanup()
#uselib "dhcpcsvc.dll"
#func global McastApiCleanup "McastApiCleanup"
; McastApiCleanup

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

var (
	dhcpcsvc = windows.NewLazySystemDLL("dhcpcsvc.dll")
	procMcastApiCleanup = dhcpcsvc.NewProc("McastApiCleanup")
)

r1, _, err := procMcastApiCleanup.Call()
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure McastApiCleanup; stdcall;
  external 'dhcpcsvc.dll' name 'McastApiCleanup';

result := DllCall("dhcpcsvc\McastApiCleanup", "Int")

●McastApiCleanup() = DLL("dhcpcsvc.dll", "int McastApiCleanup()")
# 呼び出し: McastApiCleanup()
# 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)。