we have a Kiosk Application and print using the Microsoft.PointOfService SDK. In our development environment everything works.
EDIT
The following specifications:
We're trying to print a simple text, nothing fancy. Like I said the same setup worked on the development machine. Even on the machine where it's not working now it worked but suddenly stopped working. We are considering deinstalling POS and OPOS driver and than try again.
But on the customer machine (same printer/SDK/application) we get the following Error:
UPOSDevice | Method TransactionPrint threw an exception. Service Object specific error. | Microsoft.PointOfService.PosControlException: Method TransactionPrint threw an exception. Service Object specific error.
at Microsoft.PointOfService.Legacy.LegacyProxy.ThrowLegacyMethodException(String methodName, Int32 ResultCode, Exception e)
at Microsoft.PointOfService.Legacy.LegacyProxy.InvokeMethod(String methodName, Object[]& parameters, Boolean[] byRef)
at Microsoft.PointOfService.Legacy.LegacyProxy.InvokeMethodAndCheckImpl(String methodName, Object[]& parameters, Boolean[] byRef)
at Microsoft.PointOfService.Legacy.LegacyProxy.InvokeMethodAndCheck(String methodName, Object param1, Object param2)
at Microsoft.PointOfService.Legacy.LegacyPosPrinter.TransactionPrint(PrinterStation station, PrinterTransactionControl control)
at UPOSPosPrinter.EndTransaction(PrinterStation station)
ErrorCode: 65535
ErrorCodeExtended: -1
The EndTransaction-Method looks like this:
public void EndTransaction(PrinterStation station)
{
try
{
_device.TransactionPrint((UPOSPrinterStation)station, PrinterTransactionControl.Normal);
}
catch (Exception ex)
{
_logger.LogError(ex, "CapTransactin: {CapTransaction} | ErrorMessage: {ErrorMessage}", _device.CapTransaction, ex.Message);
throw;
}
}
I couldn't even find a defintion for the ErrorCode: 65535. Does somebody know what the problem is or at least what the ErrorCode stands for?
The log from POsforNET:
[6/13/2022 1:47:47 PM 1 ERROR PosException] Microsoft.PointOfService.PosControlException: Method TransactionPrint threw an exception. Service Object specific error.
ErrorCode: Failure
ErrorCodeExtended: 0
Stack trace: at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
at System.Environment.get_StackTrace()
at Microsoft.PointOfService.PosException.GetExceptionText(Exception e)
at Microsoft.PointOfService.PosException.LogError()
at Microsoft.PointOfService.PosControlException..ctor(String message, ErrorCode errorCode, Int32 errorCodeExtended)
at Microsoft.PointOfService.Legacy.LegacyProxy.ThrowLegacyMethodException(String methodName, Int32 ResultCode, Exception e)
at Microsoft.PointOfService.Legacy.LegacyProxy.InvokeMethod(String methodName, Object[]& parameters, Boolean[] byRef)
at Microsoft.PointOfService.Legacy.LegacyProxy.InvokeMethodAndCheckImpl(String methodName, Object[]& parameters, Boolean[] byRef)
at Microsoft.PointOfService.Legacy.LegacyProxy.InvokeMethodAndCheck(String methodName, Object param1, Object param2)
at Microsoft.PointOfService.Legacy.LegacyPosPrinter.TransactionPrint(PrinterStation station, PrinterTransactionControl control)
at Test.Devices.UPOSPosPrinter.EndTransaction(PrinterStation station)
at Test.Devices.IPosPrinterExtension.PrintReceipt(IPosPrinter printer, CompositeElement template, ILogger logger)
at Test.Ticket.Controllers.PrinterController.<Print>d__6`1.MoveNext()
at System.Runtime.CompilerServices.AsyncVoidMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
at Test.Ticket.Controllers.PrinterController.Print[TBonInfo](TBonInfo bonInfo, PrintLayoutType layoutType, String repeatAction, Nullable`1 layoutId)
at Test.Ticket.Controllers.PrinterController.PrintReceipt(Nullable`1 layoutId)
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
at Test.Core.AppCommandPipeline.<>c__DisplayClass11_1.<ResolveAppCommand>b__0(RequestContext context)
at Test.Core.AppCommandPipeline.<<Build>b__16_0>d.MoveNext()
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
at Test.Core.AppCommandPipeline.<Build>b__16_0(RequestContext context)
at Test.Core.EventEmitterHandler.Invoke(RequestContext context)
at Test.Core.AppCommandPipelineMiddleware.<>c__DisplayClass3_1`1.<Add>b__1(RequestContext context)
at Test.Ticket.Middleware.ExceptionsHandler.<Invoke>d__3.MoveNext()
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
at Test.Ticket.Middleware.ExceptionsHandler.Invoke(RequestContext context)
at Test.Core.AppCommandPipelineMiddleware.<>c__DisplayClass3_1`1.<Add>b__1(RequestContext context)
at Test.Ticket.Middleware.AvailabilityUpdateHandler.Invoke(RequestContext context)
at Test.Core.AppCommandPipelineMiddleware.<>c__DisplayClass3_1`1.<Add>b__1(RequestContext context)
at Test.Ticket.Middleware.PermissionHandler.Invoke(RequestContext context)
at Test.Core.AppCommandPipelineMiddleware.<>c__DisplayClass3_1`1.<Add>b__1(RequestContext context)
at Test.Ticket.Middleware.AuthorizationHandler.Invoke(RequestContext context)
at Test.Core.AppCommandPipelineMiddleware.<>c__DisplayClass3_1`1.<Add>b__1(RequestContext context)
at Test.Ticket.Middleware.TimeOutHandler.Invoke(RequestContext context)
at Test.Core.AppCommandPipelineMiddleware.<>c__DisplayClass3_1`1.<Add>b__1(RequestContext context)
at Test.Core.AppCommandPipeline.ExecuteRequestContext[T](RequestContext requestContext, T& executionResult)
at Test.Core.AppCommandPipeline.Execute[T](AppCommand appCommand, T& executionResult, Object parameters)
at CallSite.Target(Closure , CallSite , AppCommandPipeline , AppCommand , Object& , Object )
at Test.Core.AppCommandPipeline.Execute(AppCommand appCommand, Object parameters)
at Test.Core.AppCommandPipeline.Execute(String appCommandString, Object parameters)
at Test.Core.AppEngine.ExecuteCommand(String appCommand)
at Test.Core.BaseController.<Execute>d__17.MoveNext()
at System.Runtime.CompilerServices.AsyncVoidMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
at Test.Core.BaseController.Execute(String appCommand)
at Test.Ticket.Controllers.PaymentController.<Pay>d__11.MoveNext()
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.InvokeMoveNext(Object stateMachine)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.MoveNextRunner.Run()
at System.Threading.Tasks.SynchronizationContextAwaitTaskContinuation.<>c.<.cctor>b__8_0(Object state)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
at Test.Ticket.Desktop.App.Main()
The problem was that we called
_device.TransactionPrint((UPOSPrinterStation)station, PrinterTransactionControl.Normal);
twice in a row. So we implemented a bool property to check if the printer is in "TransactionMode" or not and only call the TransactionPrint if this is true.
The actual problem why the printer didn't print was that the printer-driver didn't work. We had to reinstall the printer-driver. We assume a windows update was the culprit.
Another strange thing is that in other tests the same mechanism (calling the method twice) didn't produce an error. Very strange...