/* Returns the connection to the zebra printer after finding it through the Usb Discoverer */
public static Connection FindConnection()
{
Debug.WriteLine("START: FindConnection()");
//Finds all the USB connected Zebra printer drivers
List <DiscoveredPrinterDriver> discoveredPrinterDrivers = UsbDiscoverer.GetZebraDriverPrinters();
if (discoveredPrinterDrivers == null)
{
Debug.WriteLine("Error: No USB printers detected");
return(null);
}
if (discoveredPrinterDrivers.Count == 0)
{
return(null);
}
//Gets the instance to the Zebra Printer driver
DiscoveredPrinterDriver printerDriver = discoveredPrinterDrivers[0];
Debug.WriteLine(printerDriver);
Debug.WriteLine("END: FindConnection()");
//Get the connection to the printer driver
return(printerDriver.GetConnection());
}
public override ConnectionA GetConnection()
{
DiscoveredPrinterDriver driverPrinter = null;
List <DiscoveredPrinterDriver> printers = UsbDiscoverer.GetZebraDriverPrinters();
if (printers == null || printers.Count <= 0)
{
//MessageBox.Show("没有检测到打印机，请检查打印机是否开启！");
myEventLog.LogInfo("没有检测到打印机，请检查打印机是否开启！");
return(null);
}
driverPrinter = printers[0];
var connection = new DriverPrinterConnection(driverPrinter.Address);
connection.Open();
try
{
ZebraPrinterFactory.GetInstance(connection);
}
catch (Exception ex)
{
}
try
{
ZebraPrinterFactory.GetLinkOsPrinter(connection);
}
catch (Exception ex)
{
}
return(connection);
}
/// <exception cref="ConnectionException"></exception>
/// <exception cref="DiscoveryException"></exception>
private void PerformDiscovery()
{
DiscoveryHandlerImpl discoveryHandler = new DiscoveryHandlerImpl(this);
switch (discoveryMethodsDropdown.SelectedItem)
{
case DiscoveryMethod.DirectedBroadcast:
NetworkDiscoverer.DirectedBroadcast(discoveryHandler, viewModel.IpAddress);
break;
case DiscoveryMethod.FindPrintersNearMe:
NetworkDiscoverer.FindPrinters(discoveryHandler);
break;
case DiscoveryMethod.LocalBroadcast:
NetworkDiscoverer.LocalBroadcast(discoveryHandler);
break;
case DiscoveryMethod.MulticastBroadcast:
NetworkDiscoverer.Multicast(discoveryHandler, int.Parse(viewModel.NumberOfHops));
break;
case DiscoveryMethod.SubnetSearch:
NetworkDiscoverer.SubnetSearch(discoveryHandler, viewModel.SubnetRange);
break;
case DiscoveryMethod.ZebraUsbDrivers:
try {
discoveryHandler = null;
discoverPrintersButton.IsEnabled = false;
viewModel.DiscoveredPrinters.Clear();
foreach (DiscoveredPrinterDriver printer in UsbDiscoverer.GetZebraDriverPrinters())
{
viewModel.DiscoveredPrinters.Add(printer);
}
} finally {
SetDiscoverButtonState(true);
}
break;
case DiscoveryMethod.UsbDirect:
try {
discoveryHandler = null;
discoverPrintersButton.IsEnabled = false;
viewModel.DiscoveredPrinters.Clear();
foreach (DiscoveredUsbPrinter printer in UsbDiscoverer.GetZebraUsbPrinters())
{
viewModel.DiscoveredPrinters.Add(printer);
}
} finally {
SetDiscoverButtonState(true);
}
break;
case DiscoveryMethod.Bluetooth:
BluetoothDiscoverer.FindPrinters(discoveryHandler);
break;
}
}
public List <DiscoveredPrinter> GetZebraUsbDriverPrinters()
{
return(UsbDiscoverer.GetZebraDriverPrinters().Cast <DiscoveredPrinter>().ToList());
}