How to increase scrollbar width in WPF ScrollViewer?

Question

I am working on a touch screen on a small device and the custom width of the scroll-bar is no good as one of my requirements is that everything needs to be doable by finger

Answer 1

And if you don't want to use XAML, you can do it in the Application's constructor, e.g.

using System.Windows;

public partial class App
{
    public App()
    {
        Resources.Add(SystemParameters.VerticalScrollBarWidthKey, 50d);
        Resources.Add(SystemParameters.HorizontalScrollBarHeightKey, 50d);
    }
}