Question

我需要一个问题。我想在Window中捕获alt代码（ALT + 64 = @）。我的代码对于使用Control的快捷方式是正确的，但是当我为ALT更改时，不工作并且在Key属性中是值＆＃34; System＆＃34;。这是我的代码：

正确：

if (e.Key == Key.S && (Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)//CTRL+S

错误：

 if (e.Key == Key.S 
  && (Keyboard.Modifiers & ModifierKeys.Alt) == ModifierKeys.Alt) //ALT+S dont work - e.Key="System"

我的第二个问题是如何模拟ALT + 64（多个键）。顶部示例仅适用于ALT + 6

由于

Answer 1

由于您使用WPF，处理键盘快捷键的最佳方法是通过InputGesture

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

        private void ExitCommand_CanExecute(object sender, CanExecuteRoutedEventArgs e)
        {
            e.CanExecute = true;
        }

        private void ExitCommand_Executed(object sender, ExecutedRoutedEventArgs e)
        {
            Console.WriteLine("Your implementation");
        }

    }


    public static class CustomCommands
    {
        public static readonly RoutedUICommand Exit = new RoutedUICommand
                (
                        "Exit",
                        "Exit",
                        typeof(CustomCommands),
                        new InputGestureCollection()
                                {
                                        new KeyGesture(Key.S, ModifierKeys.Alt)
                                }
                );

        //Define more commands here, just like the one above
    }

将此添加到xaml

<Window.CommandBindings>
        <CommandBinding Command="self:CustomCommands.Exit" CanExecute="ExitCommand_CanExecute" Executed="ExitCommand_Executed" />
    </Window.CommandBindings>

Answer 2

试试这个：

if( e.KeyboardDevice.Modifiers == ModifierKeys.Alt && e.SystemKey == Key.S )

使用ALT的WPF快捷方式

2 个答案: