UWP KeyboardAccelerator of functions

Question

I know how to add KeyboardAccelerators to UIElements, but can they exist without a UIElement? I just want the Keyboard combo to activate a function.

For example, I want the user to trigger a function called moveFiveSecsAhead() when pressing right and moveFiveSecsBack() when pressing left.

How can I achieve that? One possible solution I can think of is to add two invisible buttons. But is there an easier solution?

---Update---

So I added this piece of code to my control, and it seems that it works well in the debug mode but causes crash in release mode. Why is that?

var left = new KeyboardAccelerator() { Key = Windows.System.VirtualKey.Left };
left.Invoked += (sender, args) => MediaHelper.Position = Math.Max(MediaHelper.Position - 5, 0);
var right = new KeyboardAccelerator() { Key = Windows.System.VirtualKey.Right };
right.Invoked += (sender, args) => MediaHelper.Position = Math.Min(MediaHelper.Position + 5, CurrentMusic.Duration);
this.KeyboardAccelerators.Add(left);
this.KeyboardAccelerators.Add(right);

Answer 1

You can add your keyboard accelerators to the Page you are using and no need for adding two invisible buttons.

MainPage.xaml.cs

public sealed partial class MainPage : Page
{
    public MainPage()
    {
        this.InitializeComponent();
        var accelerator = new KeyboardAccelerator() { Key = , Modifiers= };
        accelerator.Invoked += moveFiveSecsBack;
        var accelerator1 = new KeyboardAccelerator() { Key = , Modifiers = };
        accelerator.Invoked += moveFiveSecsAhead;
        this.KeyboardAccelerators.Add(accelerator);
        this.KeyboardAccelerators.Add(accelerator1);
    }
    private void moveFiveSecsBack(KeyboardAccelerator sender, KeyboardAcceleratorInvokedEventArgs args)
    {
        throw new NotImplementedException();
    }
    private void moveFiveSecsAhead(KeyboardAccelerator sender, KeyboardAcceleratorInvokedEventArgs args)
    {
        throw new NotImplementedException();
    }
}

I hope this helps.