using System;
using System.Drawing;
using System.Windows.Forms;
class SimpleClock: Form
{
public static void Main()
{
Application.Run(new SimpleClock());
}
public SimpleClock()
{
Timer timer = new Timer();
timer.Tick += new EventHandler(TimerOnTick);
timer.Interval = 1000;
timer.Start();
}
private void TimerOnTick(object sender, EventArgs ea)
{
Invalidate();
}
protected override void OnPaint(PaintEventArgs pea)
{
StringFormat strfmt = new StringFormat();
strfmt.Alignment = StringAlignment.Center;
strfmt.LineAlignment = StringAlignment.Center;
pea.Graphics.DrawString(DateTime.Now.ToString("F"),
Font, new SolidBrush(ForeColor),
ClientRectangle, strfmt);
}
}