private void CheckControlSettings() { if (textBox16.Text != String.Empty && textBox8.Text != String.Empty) { motion_tracking_controller.SetWindowSize(Convert.ToInt32(textBox16.Text)); motion_tracking_controller.SetCommandFrequency(Convert.ToDouble(textBox8.Text)); command_position_timer.Interval = Convert.ToInt32(Math.Round((1 / motion_tracking_controller.command_frequency) * 1000)); pictureBox4.BackColor = System.Drawing.Color.Green; } else { pictureBox4.BackColor = System.Drawing.Color.Red; } }