How to use the ref-napi.address function in ref-napi

function windows() {
	// Windows C++ APIs' functions are declared with capitals, so this rule has to be turned off

	// Get a "handle" of the active window
	const activeWindowHandle = user32.GetForegroundWindow();

	if (ref.isNull(activeWindowHandle)) {
		return undefined; // Failed to get active window handle
	}

	// Get memory address of the window handle as the "window ID"
	const windowId = ref.address(activeWindowHandle);
	// Get the window text length in "characters" to create the buffer
	const windowTextLength = user32.GetWindowTextLengthW(activeWindowHandle);
	// Allocate a buffer large enough to hold the window text as "Unicode" (UTF-16) characters (using ref-wchar-napi)
	// This assumes using the "Basic Multilingual Plane" of Unicode, only 2 characters per Unicode code point
	// Include some extra bytes for possible null characters
	const windowTextBuffer = Buffer.alloc((windowTextLength * 2) + 4);
	// Write the window text to the buffer (it returns the text size, but it's not used here)
	user32.GetWindowTextW(activeWindowHandle, windowTextBuffer, windowTextLength + 2);
	// Remove trailing null characters
	const windowTextBufferClean = ref.reinterpretUntilZeros(windowTextBuffer, wchar.size);
	// The text as a JavaScript string
	const windowTitle = wchar.toString(windowTextBufferClean);

	// Allocate a buffer to store the process ID
	const processIdBuffer = ref.alloc('uint32');
	// Write the process ID creating the window to the buffer (it returns the thread ID, but it's not used here)

function windows() {
  // Windows C++ APIs' functions are declared with capitals, so this rule has to be turned off

  // Get a "handle" of the active window
  const activeWindowHandle = user32.GetForegroundWindow();

  if (isNull(activeWindowHandle)) {
    return undefined; // Failed to get active window handle
  }

  // Get memory address of the window handle as the "window ID"
  const windowId = address(activeWindowHandle);

  // Allocate a buffer to store the process ID
  const processIdBuffer = alloc('uint32');
  // Write the process ID creating the window to the buffer (it returns the thread ID, but it's not used here)
  user32.GetWindowThreadProcessId(activeWindowHandle, processIdBuffer);
  // Get the process ID as a number from the buffer
  const processId = get(processIdBuffer);

  // Create a new instance of Rect, the struct required by the `GetWindowRect` method
  const bounds = new Rect();
  // Get the window bounds and save it into the `bounds` variable
  const getWindowRectResult = user32.GetWindowRect(activeWindowHandle, bounds.ref());

  if (getWindowRectResult === 0) {
    return undefined; // Failed to get window rect
  }