窗口不再位于顶部时的WPF事件

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow"
        Deactivated="Window_Deactivated"
        LostFocus="Window_LostFocus"
        PreviewLostKeyboardFocus="Window_PreviewLostKeyboardFocus"
        PreviewMouseDown="Window_PreviewMouseDown"
        PreviewMouseUp="Window_PreviewMouseUp">

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        this.Deactivated += Window_Deactivated;
        this.LostFocus += Window_LostFocus;
        this.PreviewLostKeyboardFocus += Window_PreviewLostKeyboardFocus;
        this.PreviewMouseDown += Window_PreviewMouseDown;
        this.PreviewMouseUp += Window_PreviewMouseUp;
    }

    private void Window_Deactivated(object sender, EventArgs e)
    {
        // 处理窗口失去激活状态的事件
    }

    private void Window_LostFocus(object sender, RoutedEventArgs e)
    {
        // 处理窗口或其子元素失去焦点的事件
    }

    private void Window_PreviewLostKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e)
    {
        // 处理键盘焦点即将从窗口或其子元素移动到其他元素的事件
    }

    private void Window_PreviewMouseDown(object sender, MouseButtonEventArgs e)
    {
        // 处理鼠标按钮在窗口或其子元素上按下的事件
    }

    private void Window_PreviewMouseUp(object sender, MouseButtonEventArgs e)
    {
        // 处理鼠标按钮在窗口或其子元素上释放的事件
    }
}