WSACancelAsyncRequest

// WS2_32.dll
#include <windows.h>

INT WSACancelAsyncRequest(
    HANDLE hAsyncTaskHandle
);

<DllImport("WS2_32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WSACancelAsyncRequest(
    hAsyncTaskHandle As IntPtr   ' HANDLE
) As Integer
End Function

' hAsyncTaskHandle : HANDLE
Declare PtrSafe Function WSACancelAsyncRequest Lib "ws2_32" ( _
    ByVal hAsyncTaskHandle 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

WSACancelAsyncRequest = ctypes.windll.ws2_32.WSACancelAsyncRequest
WSACancelAsyncRequest.restype = ctypes.c_int
WSACancelAsyncRequest.argtypes = [
    wintypes.HANDLE,  # hAsyncTaskHandle : HANDLE
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
WSACancelAsyncRequest = Fiddle::Function.new(
  lib['WSACancelAsyncRequest'],
  [
    Fiddle::TYPE_VOIDP,  # hAsyncTaskHandle : HANDLE
  ],
  Fiddle::TYPE_INT)

#[link(name = "ws2_32")]
extern "system" {
    fn WSACancelAsyncRequest(
        hAsyncTaskHandle: *mut core::ffi::c_void  // HANDLE
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll", SetLastError = true)]
public static extern int WSACancelAsyncRequest(IntPtr hAsyncTaskHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_WSACancelAsyncRequest' -Namespace Win32 -PassThru
# $api::WSACancelAsyncRequest(hAsyncTaskHandle)

#uselib "WS2_32.dll"
#func global WSACancelAsyncRequest "WSACancelAsyncRequest" sptr
; WSACancelAsyncRequest hAsyncTaskHandle   ; 戻り値は stat
; hAsyncTaskHandle : 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 "WS2_32.dll"
#cfunc global WSACancelAsyncRequest "WSACancelAsyncRequest" sptr
; res = WSACancelAsyncRequest(hAsyncTaskHandle)
; hAsyncTaskHandle : HANDLE -> "sptr"

; INT WSACancelAsyncRequest(HANDLE hAsyncTaskHandle)
#uselib "WS2_32.dll"
#cfunc global WSACancelAsyncRequest "WSACancelAsyncRequest" intptr
; res = WSACancelAsyncRequest(hAsyncTaskHandle)
; hAsyncTaskHandle : HANDLE -> "intptr"

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

var (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procWSACancelAsyncRequest = ws2_32.NewProc("WSACancelAsyncRequest")
)

// hAsyncTaskHandle (HANDLE)
r1, _, err := procWSACancelAsyncRequest.Call(
	uintptr(hAsyncTaskHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function WSACancelAsyncRequest(
  hAsyncTaskHandle: THandle   // HANDLE
): Integer; stdcall;
  external 'WS2_32.dll' name 'WSACancelAsyncRequest';

result := DllCall("WS2_32\WSACancelAsyncRequest"
    , "Ptr", hAsyncTaskHandle   ; HANDLE
    , "Int")   ; return: INT

●WSACancelAsyncRequest(hAsyncTaskHandle) = DLL("WS2_32.dll", "int WSACancelAsyncRequest(void*)")
# 呼び出し: WSACancelAsyncRequest(hAsyncTaskHandle)
# hAsyncTaskHandle : 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)。