private void PrintButton_Click(object sender, RoutedEventArgs evt)
{
SetPrintButtonState(false);
Connection printerConnection = null;
Task.Run(() => {
try {
printerConnection = connectionSelector.GetConnection();
printerConnection.Open();
ZebraImageI image = ZebraImageFactory.GetImage(fileSelector.FileName);
if (viewModel.ShouldStoreImage)
{
ZebraPrinterFactory.GetInstance(printerConnection).StoreImage(viewModel.StoredFileName, image, 540, 412);
}
ZebraPrinterFactory.GetInstance(printerConnection).PrintImage(image, 0, 0, 550, 412, false);
} catch (ConnectionException e) {
MessageBoxCreator.ShowError(e.Message, "Connection Error");
} catch (ZebraPrinterLanguageUnknownException e) {
MessageBoxCreator.ShowError(e.Message, "Connection Error");
} catch (IOException e) {
MessageBoxCreator.ShowError(e.Message, "Image Error");
} catch (ZebraIllegalArgumentException e) {
MessageBoxCreator.ShowError(e.Message, "Illegal Arguments");
} catch (ArgumentException e) {
MessageBoxCreator.ShowError(e.Message, "Invalid File Path");
} finally {
try {
if (printerConnection != null)
{
printerConnection.Close();
}
} catch (ConnectionException) {
} finally {
SetPrintButtonState(true);
}
}
});
}
/// <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();
}
}
