private void CheckConnection()
{
if (this.Project.PortName == null)
{
pbConnectionStatus.Image = TicketPrinter.Properties.Resources.status_error;
lblConnectionStatus.Text = "No connection set up.";
this.isConnected = false;
}
else if (this.connection == null)
{
// Try connecting
string[] portNames = SerialPort.GetPortNames();
List <string> portNameList = new List <string>(portNames);
if (portNameList.Contains(this.Project.PortName))
{
this.connection = new SerialPort(this.Project.PortName);
UsbUtil.PrepareSerialPort(this.connection);
TryEstablishConnection(false);
}
else
{
pbConnectionStatus.Image = TicketPrinter.Properties.Resources.status_error;
lblConnectionStatus.Text = this.Project.PortName + " not connected. Check setup or cable";
this.isConnected = false;
}
}
else if (!this.connection.IsOpen)
{
TryEstablishConnection(true);
}
UpdateLayoutConnected();
}
private void btnConnect_Click(object sender, EventArgs e)
{
port = new SerialPort(this.lbPortName.SelectedItem.ToString());
UsbUtil.PrepareSerialPort(port);
port.ReadTimeout = 500;
port.WriteTimeout = 500;
port.DataReceived += WriteReceivedData;
port.PinChanged += port_PinChanged;
port.ErrorReceived += port_ErrorReceived;
port.WriteBufferSize = 16;
port.ReadBufferSize = 14;
port.ReceivedBytesThreshold = 1;
port.Open();
tbLog.Text = "[TicketPrinterTest] Connected to printer on port " + this.lbPortName.SelectedItem.ToString();
updateConnectLayout();
}