public Form1()
{
InitializeComponent();
generateBall = 0;
ballDoc = new BallDoc();
random = new Random();
timer = new Timer();
timer.Interval = 100;
timer.Enabled = true;
timer.Tick += new EventHandler(timer1_Tick);
timer.Start();
DoubleBuffered = true;
}
private void toolStripLabel1_Click(object sender, EventArgs e)
{
ballDoc = new BallDoc();
Invalidate(true);
}