/// <summary>
/// Terminates a running data acquisition, closes the device and lsl outlets.
/// </summary>
private void Uninitialize()
{
try
{
//stop acquisition thread if running
if (_acquisitionRunning)
{
_acquisitionRunning = false;
_acquisitionThread.Join();
}
//close device
_device.Dispose();
_device = null;
//uninitialize lsl
if (_lslInfos.Count > 0)
{
_lslInfos.Clear();
}
_lslInfos = null;
if (_lslOutlets.Count > 0)
{
_lslOutlets.Clear();
}
_lslOutlets = null;
UpdateUIElements(DeviceStates.NotConnected);
}
catch
{
_device = null;
if (_lslInfos != null && _lslInfos.Count > 0)
{
_lslInfos.Clear();
}
_lslInfos = null;
if (_lslOutlets != null && _lslOutlets.Count > 0)
{
_lslOutlets.Clear();
}
_lslOutlets = null;
UpdateUIElements(DeviceStates.NotConnected);
}
}
private void OnDestroy()
{
try
{
unicornDevice.StopAcquisition();
}
catch (Exception e)
{
print(e.Message);
}
unicornDevice.Dispose();
receiveBufferHandle.Free();
}
/// <summary>
/// The open/close button click event.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnOpenClose_Click(object sender, EventArgs e)
{
//if no device opened
if (_device == null)
{
try
{
//connect to currently selected device
string serial = cbDevices.SelectedItem.ToString();
string streamName;
if (tbStreamName.Text.Length <= 0 || tbStreamName.Text == null)
{
streamName = "Unicorn";
tbStreamName.Text = streamName;
}
else
{
streamName = tbStreamName.Text;
}
Thread connectionThread = new Thread(() => ConnectionThread_DoWork(serial, streamName));
connectionThread.Start();
}
catch (DeviceException ex)
{
_device = null;
UpdateUIElements(DeviceStates.NotConnected);
ShowErrorBox(ex.Message);
}
catch (Exception ex)
{
_device = null;
UpdateUIElements(DeviceStates.NotConnected);
ShowErrorBox(String.Format("Could not open device. {0}", ex.Message));
}
}
//if device opened
else
{
try
{
//stop acquisition thread if running
if (_acquisitionRunning)
{
_acquisitionRunning = false;
_acquisitionThread.Join();
}
//close device
_device.Dispose();
_device = null;
//uninitialize lsl
_lslInfo = null;
_lslOutlet = null;
UpdateUIElements(DeviceStates.NotConnected);
}
catch
{
_device = null;
_lslInfo = null;
_lslOutlet = null;
UpdateUIElements(DeviceStates.NotConnected);
}
}
}
/// <summary>
/// The open/close button click event.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnOpenClose_Click(object sender, EventArgs e)
{
//if no device opened
if (_device == null)
{
try
{
//connect to currently selected device
string serial = cbDevices.SelectedItem.ToString();
IPAddress ip = IPAddress.Parse(tbIP.Text);
int port = Int32.Parse(tbPort.Text);
Thread connectionThread = new Thread(() => ConnectionThread_DoWork(serial, ip, port));
connectionThread.Start();
}
catch (DeviceException ex)
{
_device = null;
UpdateUIElements(DeviceStates.NotConnected);
ShowErrorBox(ex.Message);
}
catch (Exception ex)
{
_device = null;
UpdateUIElements(DeviceStates.NotConnected);
ShowErrorBox(String.Format("Could not open device. {0}", ex.Message));
}
}
//if device opened
else
{
try
{
//stop acquisition thread if running
if (_acquisitionRunning)
{
_acquisitionRunning = false;
_acquisitionThread.Join();
}
//close device
_device.Dispose();
_device = null;
UpdateUIElements(DeviceStates.NotConnected);
}
catch
{
_device = null;;
UpdateUIElements(DeviceStates.NotConnected);
}
finally
{
try
{
//close socket connection
_socket.Shutdown(SocketShutdown.Both);
_socket.Close();
}
catch (Exception ex)
{
ShowErrorBox(String.Format("Could not close socket. {0}", ex.Message));
}
}
}
}
