/// <summary>
/// Set Printer Parameters
/// </summary>
/// <returns>The printer.</returns>
/// <param name="address">Address.</param>
public static PrintResult SetDefaultPrinterSettings(string address)
{
var result = new PrintResult();
IConnection connection = null;
try
{
connection = new BluetoothConnectionInsecure(address);
connection.Open();
using (var printer = ZebraPrinterFactory.GetInstance(PrinterLanguage.Zpl, connection))
{
// set printer to bluetooth classic only
printer.SendCommand("! U1 setvar \"bluetooth.le.controller_mode\" \"classic\"" + "\r\n");
// disable wifi
printer.SendCommand("! U1 setvar \"wlan.enable\" \"off\"" + "\r\n");
// disable wifi power save
printer.SendCommand("! U1 setvar \"wlan.power_save\" \"off\"" + "\r\n");
// disable bonding
printer.SendCommand("! U1 setvar \"bluetooth.bonding\" \"off\"" + "\r\n");
// disable sleep mode
printer.SendCommand("! U1 setvar \"power.sleep.enable\" \"off\"" + "\r\n");
// never power down due to inactivity
printer.SendCommand("! U1 setvar \"power.inactivity_timeout\" \"0\"" + "\r\n");
// set sleep timeout to 8 hours - not sure if sleep.enable = off overrides this?
printer.SendCommand("! U1 setvar \"power.sleep.timeout\" \"28000\"" + "\r\n");
}
result.Status = PrintStatus.Success;
return(result);
}
catch (Exception exception)
{
Microsoft.AppCenter.Crashes.Crashes.TrackError(exception);
result.Message = "Print failed. Check the printer is switched on and try again.";
result.Status = PrintStatus.PrintException;
return(result);
}
finally
{
Thread.Sleep(SignaturePauseMilliseconds);
connection.Close();
}
}
/// <summary>
/// Log printer failure
/// </summary>
/// <param name="result">Result.</param>
/// <param name="status">Status.</param>
static void LogPrinterFailure(PrintResult result, PrinterStatus status)
{
if (status.IsHeadOpen)
{
result.Message = "Cannont print because the printer head is open.";
}
else if (status.IsHeadCold)
{
result.Message = "Cannot print because the printer head is cold.";
}
else if (status.IsHeadTooHot)
{
result.Message = "Cannot print because the printer head is too hot.";
}
else if (status.IsPaperOut)
{
result.Message = "Cannot print because the paper is out.";
}
else if (status.IsPartialFormatInProgress)
{
result.Message = "Cannot print because a partial format is in progress.";
}
else if (status.IsPaused)
{
result.Message = "Cannot print because the printer is paused.";
}
else if (status.IsReceiveBufferFull)
{
result.Message = "Cannot print because the receive buffer is full.";
}
else if (status.IsRibbonOut)
{
result.Message = "Cannot print because the ribbon is out.";
}
var printFailureException = new PrintFailureException(result.Message);
Microsoft.AppCenter.Crashes.Crashes.TrackError(printFailureException);
}
/// <summary>
/// Print content
/// </summary>
/// <returns>The print.</returns>
/// <param name="content">Content.</param>
public static PrintResult Print(string content, string address, string signature)
{
var result = new PrintResult
{
Status = PrintStatus.PrintFailed
};
IConnection connection = null;
try
{
connection = new BluetoothConnectionInsecure(address);
connection.Open();
var printer = ZebraPrinterFactory.GetInstance(PrinterLanguage.Cpcl, connection);
// if there is a signature store it
if (signature != null)
{
using (var image = ZebraImageFactory.GetImage(signature))
{
printer.StoreImage(SignatureFilename, image, image.Width / 4, image.Height / 4);
}
Thread.Sleep(SignaturePauseMilliseconds);
}
// write the label
var printLabel = ConvertExtendedAscii(content);
connection.SendAndWaitForResponse(printLabel, InitialiseResponseTimeoutMilliseconds,
ResponseCompletionTimeoutMilliseconds, null);
var status = printer.CurrentStatus;
while (status.NumberOfFormatsInReceiveBuffer > 0 && status.IsReadyToPrint)
{
Thread.Sleep(500);
status = printer.CurrentStatus;
}
if (!status.IsReadyToPrint)
{
LogPrinterFailure(result, status);
}
result.Status = PrintStatus.Success;
printer.SendCommand("! U1 setvar \"formats.cancel_all\" \"\"" + "\r\n");
return(result);
}
catch (Exception exception)
{
var context = Application.Context;
var message = context.Resources.GetString(Resource.String.message_print_failed_continue);
Microsoft.AppCenter.Crashes.Crashes.TrackError(exception);
result.Message = message;
result.Status = PrintStatus.PrintException;
return(result);
}
finally
{
connection.Close();
}
}
