Time flies - rx C# example

using System;
using System.Windows.Forms;
using System.Reactive.Linq;
using System.Drawing;
using System.Threading;

namespace rxforms
{
    public class MainForm: Form
    {
        public MainForm ()
        {
            InitializeComponent ();
        }

        private void Reactive (string msg)
        {
            var mousemove = Observable.FromEventPattern<MouseEventArgs> (this, "MouseMove");
            var message = msg.ToCharArray ();

            for (int i = 0; i < message.Length; i++) {
                var l = new Label () {
                    Text = message [i].ToString (),
                    AutoSize = true,
                    TextAlign = ContentAlignment.MiddleCenter
                };

                int closure = i;
                mousemove
                    .Delay (TimeSpan.FromSeconds (0.07 * i)).ObserveOn(SynchronizationContext.Current)
                    .Subscribe(e => {
                        var left=l.Left = e.EventArgs.X + closure * 12 - 5;
                        var top = e.EventArgs.Y + 15;
                        l.Left = left;
                        l.Top = top;
                });
                Controls.Add (l);
            }
        }


        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose (bool disposing)
        {
            if (disposing && (components != null)) {
                components.Dispose ();
            }
            base.Dispose (disposing);
        }


        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent ()
        {
            this.SuspendLayout();
            //
            // MainForm
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(646, 430);
            this.Name = "MainForm";
            this.Text = "RX test";
            this.Load += new System.EventHandler(this.MainForm_Load);
            this.ResumeLayout(false);

        }

        private void MainForm_Load(object sender, EventArgs e)
        {
            Reactive("Time flies like an arrow.");
        }
    }

    class MainClass
    {
        [STAThread]
        public static void Main(string[] args)
        {
            MainForm form = new MainForm();
            Application.Run(form);
        }
    }
}