leak_test/leak_test_project/MainWindow.xaml.cs

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Threading;

namespace leak_test_project
{
    public partial class MainWindow : Window
    {
        private DispatcherTimer _timer;

        public MainWindow()
        {
            InitializeComponent();
            StartClock();
            this.Closing += MainWindow_Closing;
        }

        private void MainWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            var result = MessageBox.Show("프로그램을 종료하시겠습니까?", "종료 확인", MessageBoxButton.YesNo, MessageBoxImage.Question);
            if (result == MessageBoxResult.No)
            {
                e.Cancel = true;
                return;
            }
            _timer?.Stop();
        }

        private void StartClock()
        {
            _timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(1) };
            _timer.Tick += (s, e) => UpdateDateTime();
            _timer.Start();
            UpdateDateTime();
        }

        private void UpdateDateTime()
        {
            string dayOfWeek = DateTime.Now.ToString("ddd");
            txtCurrentDateTime.Text = DateTime.Now.ToString($"yyyy-MM-dd [{dayOfWeek}] HH:mm:ss");
        }

        private void BtnMinimize_Click(object sender, RoutedEventArgs e)
        {
            this.WindowState = WindowState.Minimized;
        }

        private void BtnMaximize_Click(object sender, RoutedEventArgs e)
        {
            if (this.WindowState == WindowState.Maximized)
            {
                this.WindowState = WindowState.Normal;
                txtMaximizeIcon.Text = "1"; // Maximize icon
                btnMaximize.ToolTip = "최대화";
            }
            else
            {
                this.WindowState = WindowState.Maximized;
                txtMaximizeIcon.Text = "2"; // Restore icon
                btnMaximize.ToolTip = "창 모드";
            }
        }

        private void TopBar_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (e.ClickCount == 2)
            {
                BtnMaximize_Click(sender, e);
            }
            else
            {
                this.DragMove();
            }
        }
    }
}