private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            newuser ob_of_newuser = new newuser();

            ob_of_newuser.Show();
            this.Hide();
        }
        private void button3_Click(object sender, EventArgs e)
        {
            pictureBox1.Image = null;
            freame.Stop();
            this.Dispose();
            newuser ob_newuser = new newuser();

            ob_newuser.Show();
        }