private void btnOpenIMU_Click(object sender, EventArgs e) { mf.OpenIMUPort(); if (mf.spIMU.IsOpen) { cboxIMU.Enabled = false; btnCloseIMU.Enabled = true; btnOpenIMU.Enabled = false; lblCurrentIMU.Text = mf.spIMU.PortName; } else { cboxIMU.Enabled = true; btnCloseIMU.Enabled = false; btnOpenIMU.Enabled = true; } }