/****************************************************************************************************
* Description: Sends a selected ZPL command to the Zebra printer over bluetooth and reads response.
*****************************************************************************************************/
private void bluetoothBtnSend_Click(object sender, EventArgs e)
{
String cmdSend = null;
String readResponse = null;
int nBytes = 0;
if (thePrinterConn != null)
{
if (bluetoothSndList.SelectedIndex >= 0)
{
cmdSend = bluetoothSndList.SelectedItem.ToString();
thePrinterConn.Write(Encoding.Default.GetBytes(cmdSend));
statusString = "Command Sent: " + cmdSend.Trim();
bluetoothListResponse.Items.Add(statusString);
Thread.Sleep(500);
nBytes = thePrinterConn.BytesAvailable();
byte[] bData = new byte[nBytes];
bData = thePrinterConn.Read();
readResponse = System.Text.ASCIIEncoding.ASCII.GetString(bData, 0, bData.Length);
statusString = "Received Data: " + readResponse;
bluetoothListResponse.Items.Add(statusString);
}
else
{
MessageBox.Show("Select command to be sent.");
}
}
else
{
MessageBox.Show("The printer isn't connected. Please connect the printer before sending commnd...");
}
}
public bool Print()
{
bool error = true;
try
{
// Open the connection - physical connection is established here.
ThePrinterConn.Open();
printer = ZebraPrinterFactory.GetInstance(ThePrinterConn);
PrinterStatus printerStatus = printer.GetCurrentStatus();
bool ready = printerStatus.IsReadyToPrint;
if (ready == false)
{
return(error);
}
//stvaranje oblika za slanje na printer
String output = "! 0 200 200" + " " + (lastYPos + 100).ToString() + " " + "1\r\n";
//output += "IN-MILLIMETERS\r\n";
foreach (String s in buffer)
{
output += s + "\r\n";
}
output += "PRINT\r\n";
// Send the data to the printer as a byte array.
ThePrinterConn.Write(Encoding.UTF8.GetBytes(output));
//thePrinterConn.Close();
error = false;
}
catch (Exception e)
{
Logger.Logger.Log(e);
error = true;
}
finally
{
//brisi buffer
buffer.Clear();
//na kraju, baci gresku ako nije izvrseno do kraja...
}
return(error);
}
/**
* Once connected, automatically generates a small test command and send
* it to the printer for printing to demonstrate that a connection exists.
* */
public void sendLabel()
{
// Get the bytes data and send it to printer.
if (printer != null)
{
byte[] configLabel = getConfigLabel(printer.GetPrinterControlLanguage());
connection.Write(configLabel);
updateGuiFromWorkerThread("Sending Data", Color.CornflowerBlue);
Thread.Sleep(2000);
}
disconnect();
}
public void printRawString(string command, IReadOnlyDictionary <string, string> options, IMethodResult oResult)
{
Logger.Write("printRawString call: " + command);
Logger.Write("command: " + command);
Logger.Write("options:", options);
if (m_connection != null && m_printer != null)
{
try
{
byte[] commandStr = Encoding.UTF8.GetBytes(command);
m_connection.Write(commandStr);
Thread.Sleep(500);
byte[] printerResponse = m_connection.Read();
string printerResponseStr = Encoding.UTF8.GetString(printerResponse, 0, printerResponse.Length);
IReadOnlyDictionary <string, string> response = new IReadOnlyDictionary <string, string>();
response.Add(ZebraConstants.HK_STATUS, ZebraConstants.PRINTER_STATUS_SUCCESS);
response.Add(ZebraConstants.HK_STRING_RESPONCE, printerResponseStr);
oResult.set(response);
}
catch (Exception ex)
{
IReadOnlyDictionary <string, string> errResponse = new IReadOnlyDictionary <string, string>();
errResponse.Add(ZebraConstants.HK_STATUS, ZebraConstants.PRINTER_STATUS_ERROR);
errResponse.Add(ZebraConstants.HK_MESSAGE, ex.Message.ToString());
oResult.set(errResponse);
}
}
else
{
oResult.set(ZebraConstants.PRINTER_STATUS_ERR_NOT_CONNECTED);
}
}
/****************************************************************************************************
* Description: Opens a usb connection with the printer. Sends selected zpl command to the printer and reads
* response.
*****************************************************************************************************/
private void usbBtnSend_Click(object sender, EventArgs e)
{
String cmdSend = null;
String readResponse = null;
int nBytes = 0;
if (usbSndList.SelectedIndex >= 0)
{
try
{
// Instantiate connection for ZPL USB port with a given port name.
thePrinterConn = new UsbPrinterConnection("LPT1:"); // "LPT" is the default prefix for most Windows CE/Mobile USB ports
// Open the connection - physical connection is established here.
thePrinterConn.Open();
// This example prints "This is a ZPL test." near the top of the label.
cmdSend = usbSndList.SelectedItem.ToString() + "\r\n";
// Send the data to printer as a byte array.
thePrinterConn.Write(Encoding.Default.GetBytes(cmdSend));
statusString = "Command Sent: " + cmdSend.Trim();
usbListResponse.Items.Add(statusString);
Thread.Sleep(500);
nBytes = thePrinterConn.BytesAvailable();
byte[] bData = new byte[nBytes];
bData = thePrinterConn.Read();
readResponse = System.Text.ASCIIEncoding.ASCII.GetString(bData, 0, bData.Length);
statusString = "Received Data: " + readResponse;
// If response is longer than devide the received byte stream into multiple
// streams of 46 characters to diplay it properly in listbox.
if (statusString.Length < 46)
{
usbListResponse.Items.Add(statusString);
}
else
{
String tempStatusString = statusString;
while (tempStatusString.Length > 0)
{
if ((tempStatusString.Length - 46) > 0)
{
usbListResponse.Items.Add(tempStatusString.Substring(0, 46));
tempStatusString = tempStatusString.Remove(0, 46);
}
else
{
usbListResponse.Items.Add(tempStatusString.Substring(0, tempStatusString.Length));
tempStatusString = tempStatusString.Remove(0, tempStatusString.Length);
}
}
}
usbListResponse.Refresh();
// Close the connection to release resources.
thePrinterConn.Close();
thePrinterConn = null;
}
catch (ZebraPrinterConnectionException)
{
// Handle communications error here.
MessageBox.Show("Unable to connect with printer.");
return;
}
catch (ZebraException)
{
MessageBox.Show("Unable to connect with printer.\r\nCheck that printer is on.");
return;
}
catch (Exception)
{
MessageBox.Show("Exception Thrown");
return;
}
}
else
{
MessageBox.Show("Please select a command to be Sent...");
return;
}
}
