WPF 获取应用的所有窗口

foreach(Window window in Application.Current.Windows ) 
{
    Console.WriteLine(window.Title);
}

        delegate bool EnumThreadDelegate(IntPtr hWnd, IntPtr lParam);

        [DllImport("user32.dll")]
        static extern bool EnumThreadWindows(int dwThreadId, EnumThreadDelegate lpfn,
            IntPtr lParam);

        static IEnumerable<IntPtr> EnumerateProcessWindowHandles(Process process)
        {
            var handleList = new List<IntPtr>();

            foreach (ProcessThread thread in process.Threads)
            {
                EnumThreadWindows(thread.Id,
                    (hWnd, lParam) => { handleList.Add(hWnd); return true; }, IntPtr.Zero);
            }

            return handleList;
        }