private void btnCloseRTCM_Click(object sender, EventArgs e) { mf.CloseRtcmPort(); if (mf.spRtcm.IsOpen) { cboxRtcmBaud.Enabled = false; cboxRtcmPort.Enabled = false; btnCloseRTCM.Enabled = true; btnOpenRTCM.Enabled = false; } else { cboxRtcmBaud.Enabled = true; cboxRtcmPort.Enabled = true; btnCloseRTCM.Enabled = false; btnOpenRTCM.Enabled = true; } }