UnregisterWaitEx

// KERNEL32.dll
#include <windows.h>

BOOL UnregisterWaitEx(
    HANDLE WaitHandle,
    HANDLE CompletionEvent   // optional
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function UnregisterWaitEx(
    WaitHandle As IntPtr,   ' HANDLE
    CompletionEvent As IntPtr   ' HANDLE optional
) As Boolean
End Function

' WaitHandle : HANDLE
' CompletionEvent : HANDLE optional
Declare PtrSafe Function UnregisterWaitEx Lib "kernel32" ( _
    ByVal WaitHandle As LongPtr, _
    ByVal CompletionEvent 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

UnregisterWaitEx = ctypes.windll.kernel32.UnregisterWaitEx
UnregisterWaitEx.restype = wintypes.BOOL
UnregisterWaitEx.argtypes = [
    wintypes.HANDLE,  # WaitHandle : HANDLE
    wintypes.HANDLE,  # CompletionEvent : HANDLE optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
UnregisterWaitEx = Fiddle::Function.new(
  lib['UnregisterWaitEx'],
  [
    Fiddle::TYPE_VOIDP,  # WaitHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # CompletionEvent : HANDLE optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn UnregisterWaitEx(
        WaitHandle: *mut core::ffi::c_void,  // HANDLE
        CompletionEvent: *mut core::ffi::c_void  // HANDLE optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool UnregisterWaitEx(IntPtr WaitHandle, IntPtr CompletionEvent);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_UnregisterWaitEx' -Namespace Win32 -PassThru
# $api::UnregisterWaitEx(WaitHandle, CompletionEvent)

#uselib "KERNEL32.dll"
#func global UnregisterWaitEx "UnregisterWaitEx" sptr, sptr
; UnregisterWaitEx WaitHandle, CompletionEvent   ; 戻り値は stat
; WaitHandle : HANDLE -> "sptr"
; CompletionEvent : HANDLE optional -> "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 "KERNEL32.dll"
#cfunc global UnregisterWaitEx "UnregisterWaitEx" sptr, sptr
; res = UnregisterWaitEx(WaitHandle, CompletionEvent)
; WaitHandle : HANDLE -> "sptr"
; CompletionEvent : HANDLE optional -> "sptr"

; BOOL UnregisterWaitEx(HANDLE WaitHandle, HANDLE CompletionEvent)
#uselib "KERNEL32.dll"
#cfunc global UnregisterWaitEx "UnregisterWaitEx" intptr, intptr
; res = UnregisterWaitEx(WaitHandle, CompletionEvent)
; WaitHandle : HANDLE -> "intptr"
; CompletionEvent : HANDLE optional -> "intptr"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procUnregisterWaitEx = kernel32.NewProc("UnregisterWaitEx")
)

// WaitHandle (HANDLE), CompletionEvent (HANDLE optional)
r1, _, err := procUnregisterWaitEx.Call(
	uintptr(WaitHandle),
	uintptr(CompletionEvent),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function UnregisterWaitEx(
  WaitHandle: THandle;   // HANDLE
  CompletionEvent: THandle   // HANDLE optional
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'UnregisterWaitEx';

result := DllCall("KERNEL32\UnregisterWaitEx"
    , "Ptr", WaitHandle   ; HANDLE
    , "Ptr", CompletionEvent   ; HANDLE optional
    , "Int")   ; return: BOOL

●UnregisterWaitEx(WaitHandle, CompletionEvent) = DLL("KERNEL32.dll", "bool UnregisterWaitEx(void*, void*)")
# 呼び出し: UnregisterWaitEx(WaitHandle, CompletionEvent)
# WaitHandle : HANDLE -> "void*"
# CompletionEvent : HANDLE optional -> "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)。