APU_Play_Mega.Form1.ResetAPU_Click C# (CSharp) Method

        private void ResetAPU_Click(object sender, EventArgs e)
        {
            if (IsSerialPortClosed()) return;
            serialPort.Write("sA0");
            textOutput.AppendText(ReadLine() + Environment.NewLine);
            if (autoPlay.Checked != _autoPlaySet) ReadLine();
            _autoPlaySet = false;
        }