private void button8_Click(object sender, EventArgs e) { if (this.InvokeRequired) { dbutton8_Click d = new dbutton8_Click(button8_Click); object[] args = { sender, e }; this.Invoke(d, args); } else { if (AcceptedEmulator != null) { if (AcceptedEmulator.IsConnected) { AcceptedEmulator.Send("BACKTRACE\n"); } } } }