WPF-Base/WPF路由事件-6-获取键盘状态/MainWindow.xaml.cs

using System.Windows;
using System.Windows.Input;

namespace WPF路由事件_6_获取键盘状态;

/// <summary>
///     Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
    }

    private void InputTextBox_OnPreviewKeyDown(object sender, KeyEventArgs e)
    {
        var keyboardDeviceModifiers = e.KeyboardDevice.Modifiers & ModifierKeys.Control;
        if (keyboardDeviceModifiers == ModifierKeys.Control) InputTextBox.Text = "好了";

        // 判断是否按下了按键
        if (e.KeyboardDevice.IsKeyDown(Key.Z)) InputTextBox.Text = "按下了 Z 键";

        // 判断是否按键释放
        if (e.KeyboardDevice.IsKeyUp(Key.LeftShift)) InputTextBox.Text = "左边的 LeftShift";

        // 大写键是否开启
        if (e.KeyboardDevice.IsKeyToggled(Key.CapsLock)) InputTextBox.Text = "大写键是否开启或关闭";

        var keyStates = e.KeyboardDevice.GetKeyStates(Key.A);
        Console.WriteLine(keyStates);
    }
}