WPF C# Tutorial

using System;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
    class MainClass : Window
    {
        RadialGradientBrush brush;
        [STAThread]
        public static void Main()
        {
            Application app = new Application();
            app.Run(new MainClass());
        }
        public MainClass()
        {
            Title = "title";
        }
        protected override void OnMouseDown(MouseButtonEventArgs args)
        {
            Point ptMouse = args.GetPosition(this);
            Console.WriteLine(ptMouse.X);
            Console.WriteLine(ptMouse.Y);
            if (args.ChangedButton == MouseButton.Left)
            {
                Console.WriteLine("left");
                
            }
            else if (args.ChangedButton == MouseButton.Right){
                Console.WriteLine("right");
            }
                
        }
    }