I've tried everything I can think of but I'm unable to get OpenPrinter API to work in my BasicMsi
prototype BOOL SETUPAPI.OpenPrinterW(
WSTRING, //_In_ LPTSTR pPrinterName,
NUMBER,//_Out_ LPHANDLE phPrinter,
WPOINTER//_In_ LPPRINTER_DEFAULTS pDefault
);
try
OpenPrinterW(szDriverName, Printer, NULL);
catch
Err = GetLastError();
SprintfBox (INFORMATION, "L862Error","Error occured: %i\n\n%s\n\n%s", Err.Number, Err.Description, Err.LastDllError);
endcatch;
I always get a -2147219709 returned, I've also tried using OpenPrinterA and OpenPrinter but same error everytime.
Does anyone have any idea's as to what I may be doing wrong?
I suspect it's this error:
ERROR_PRINTER_DRIVER_ALREADY_INSTALLED
1795 (0x703)
The specified printer driver is already installed
I converted your error number into hex and it's 80040703 which is where I've gotten 703 from (8004 means it's an error in FACIILITY_ITF)
not sure if this helps... but it might get you started. I wonder if this is some sort of problem where msiexec can't see the printer so tries to install it.
Related
When I was running a process in ProcessMaker, I got error message "Fatal error in trigger", then I checked the error logs and found this
PHP Parse error: syntax error, unexpected '}' in /opt/processmaker/workflow/engine/classes/class.pmScript.php(216) : eval()'d code on line 9.
Could anyone tell me please what should I do?
Thank you so much for your help.
Here's the code :
public function executeAndCatchErrors($sScript, $sCode)
{
ob_start('handleFatalErrors');
set_error_handler('handleErrors');
$_SESSION['_CODE_'] = $sCode;
eval($sScript );
$this->evaluateVariable();
unset( $_SESSION['_CODE_'] );
ob_end_flush();
}
ProcessMaker supports Triggers, where you can embed PHP code directly into a workflow process.
The code you have pasted is actually part of the ProcessMaker source code, which evaluates the triggers during the execution of a workflow process.
It appears though there is a PHP syntax error in a trigger rather than the source code itself.
In order to fix this issue, I would look at the process triggers and check for PHP syntax errors. I would also try and run through the process and see at what point you get the error and then check the triggers that are defined around the task that caused the error.
For more information on triggers, see:
https://wiki.processmaker.com/3.0/Triggers
My UWP app is crashing in Release mode and works fine in Debug mode but I can't put my finger on what the issue is but I know it's related to a combination of raising an event from System.Threading.Timer and MVVMLight.
I created an new dummy application and use the same code (ZXing.net.mobile where I used 2 portable libraries and I used my own user control which is a simplified version of theirs - I'm using events instead of <Action>). This works fine and I'm currently trying to put more steps into it i.e. include mvvmlight and navigation but so far, I can't reproduce the problem in this dummy app.
The error I'm getting is:
Unhandled exception at 0x58C1AF0B (mrt100_app.dll) in Company.MyApp.App.exe:
0xC0000602: A fail fast exception occurred. Exception handlers will not be
invoked and the process will be terminated immediately.
Followed by:
Unhandled exception at 0x0107D201 (SharedLibrary.dll) in
Company.MyApp.App.exe: 0x00001007.
When looking at the Threads window, one of the worker thread has the following information if that's of help.
Not Flagged > 4012 0 Worker Thread <No Name>
System.Private.Interop.dll!System.Runtime.InteropServices.
ExceptionHelpers.ReportUnhandledError Normal
[External Code]
System.Private.Interop.dll!System.Runtime.InteropServices.ExceptionHelpers.
ReportUnhandledError(System.Exception e) Line 885
System.Private.Interop.dll!Internal.Interop.InteropCallbacks.ReportUnhandledError
(System.Exception ex) Line 17
System.Private.WinRTInterop.CoreLib.dll!Internal.WinRT.Interop.WinRTCallbacks.
ReportUnhandledError(System.Exception ex) Line 274
System.Private.CoreLib.dll!System.RuntimeExceptionHelpers.ReportUnhandledException
(System.Exception exception) Line 152
System.Private.Threading.dll!System.Threading.Tasks.AwaitTaskContinuation.
ThrowAsyncIfNecessary(System.Exception exc) Line 784
System.Private.Threading.dll!System.Threading.WinRTSynchronizationContext.Invoker.
InvokeCore() Line 182
System.Private.Threading.dll!System.Threading.WinRTSynchronizationContext.Invoker.
Invoke(object thisObj) Line 162
System.Private.CoreLib.dll!System.Action<System.__Canon>.
InvokeOpenStaticThunk(System.__Canon obj)
System.Private.WinRTInterop.CoreLib.dll!Internal.WinRT.Interop.WinRTCallbacks.PostToCoreDispatcher.AnonymousMethod__0() Line 266
MyCompany.MyApp.App.exe
MyCompany.MyApp.App.ViewModels.ValidateHandler.Invoke(string pin)
MyCompany.MyApp.App.McgInterop.dll!McgInterop.ReverseComSharedStubs
.Proc_(object __this, System.IntPtr __methodPtr) Line 6163
MyCompany.MyApp.App.McgInterop.dll!Windows.UI.Core.DispatchedHandler__Impl.Vtbl.Invoke__STUB(System.IntPtr pComThis) Line 45147
[External Code]
Within my QR Code UserControl, it's using a System.Threading.Timer and it raises an event when a QR Code is found:
timerPreview = new Timer(async (state) =>
{
....
// Check if a result was found
if (result != null && !string.IsNullOrEmpty(result.Text))
{
Debug.WriteLine("Barcode Found: " + result.Text);
if (!this.ContinuousScanning)
{
delay = Timeout.Infinite;
await StopScanningAsync();
}
else
{
delay = this.ScanningOptions.DelayBetweenContinuousScans;
}
OnBarcodeFound(result.Text);
}
timerPreview.Change(delay, Timeout.Infinite);
}, null,
this.ScanningOptions.InitialDelayBeforeAnalyzingFrames,
Timeout.Infinite);
In the page that host the QRCode UserControl, I've got the following code:
private async void ScannerControl_BarcodeFound(string barcodeValue)
{
var dispatcher = CoreApplication.MainView.CoreWindow.Dispatcher;
await dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => {
Debug.WriteLine(barcodeValue);
GetViewModel.BarcodeFound(barcodeValue);
});
}
As you can see, I'm passing the QrCode value to my ViewModel and from there, I sent a message and then re-direct to another page:
public void BarcodeFound(string barcodeData)
{
Messenger.Default.Send<string>(barcodeData, MessengerTokens.QrCodeFound);
this.NavigationFacade.NavigateToMyOtherPage();
}
I could keep going and provide additional code, but as I add additional breakpoints I can see that the code and passing the correct value and going to the correct location but eventually it throws this error. If I add additional error handlers or dispatcher code, it eventually works and goes to the next page as expected but when I click on a button in my CommandBar, it then takes a while and it eventually throws the same error, so by adding these additional bits of code, I feel I'm just pushing down the problem further down the line.
Anyone got any suggestions on how I get around this problem. I wish I could share the full app but definitely can't. So I know it will be hard to provide a solution, but if anyone has suggestions I'd appreciate them.
As I said, I think the issue is a result of a combination of threading and mvvmlight but it's driving me nuts that my test app so far is working exactly as expected, so I'm pretty sure it's not Zxing or my UserControl.
Any help, suggestions would be greatly appreciated or if you need me to provide additional info, please let me know what and I'll try to provide it.
Thanks.
Well, this was a painstaking exercise and a huge waste of my time!
It was down to a few things!!
I was using a different DataService in Releasemode which wasn't implemented. By implemented, I mean all my functions were returning the NotImplementedException or null values.
When passing my model to my ViewModel, I did not check if it was null, thus causing unhandled exceptions.
I had a chain of mvvmlight events (Messenger.Default.Send<>) being triggered and none were checking for error or null values.
While all of these were caused by poor validation from my part, these errors are extremely poorly reported in Release mode! if from the get go, I had received a NullReferenceException or any kind of exceptions, it would have put me in the right direction immediately, but throwing errors such as the one I've had were totally useless but it didn't but lesson learned!!
All I can say is that if this problem ever happens to you, don't waste your time rewriting code or trying to find workarounds. First work your way through your workflow/chain of events and hopefully, you'll eventually catch the culprit.
Hope this helps.
Sadly we were facing a similar issue, ours was involved with setting the qualifier values for changing localization on the fly in the app but came up with mystery fail fast/SharedLibrary native errors. Upgrading the Microsoft.NETCore.UniversalWindowPlatform package from 6.0.4 to 6.0.7 seems to have resolved the issue.
Only thought of this because another place I was researching this error involved someone solving a SharedLibrary problem by upgrading their NETCore package, that case was an earlier one (5.x), but figured it was worth a shot.
I had nearly similar problem with this.
FormatMessage Fails with error code 317
The difference is it is said as an answer that this is caused by "FORMAT_MESSAGE_FROM_SYSTEM" but when I remove it it happens again.
I am trying to read from EventLog in Windows Server 2003. But when I try to use FormatMessage function I get 317 error.
Interestingly same code works for Windows Server 2008. How can I fix this or what can I use instead of FormatMessage?
My code:
FormatMessage(FORMAT_MESSAGE_FROM_HMODULE |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_ALLOCATE_BUFFER,
g_hResources, // handles DLL containing message table
MessageId,
0, // Default language
(LPWSTR) &pMessage,
0,
(va_list*)pArgs )
Good day to you..
Error 317 is "The system cannot find message text for message number 0x%1 in the message file for %2.". That means the MessageId is not an error number known to the system.
You are combining FORMAT_MESSAGE_FROM_HMODULE and FORMAT_MESSAGE_FROM_SYSTEM, which doesn't make sense. Where do you want to get the message from? Do you want to get it from g_hResources or from the system error message table? From the comment, it sounds like you want to get it from g_hResources, in which case you should remove FORMAT_MESSAGE_FROM_SYSTEM. If you still get error 317, then it means that the message number you passed doesn't exist in g_hResources.
Is there a way to tell PHP to run one last function, or somehow override some error handler in the event of a fatal error? I have a cron that has a main entry point of:
$obj = new obj();
$obj->run();
exit;
Would wrapping that in a try catch do the trick if I'm not explicitly throwing errors? All I want is for PHP to do something as simple as create a txt file containing the fatal error, or even just create an empty file named 'failed.txt', or something.
Thanks!
error_handler might help you here
Or this for fatal errors: http://insomanic.me.uk/post/229851073/php-trick-catching-fatal-errors-e-error-with-a
You write it's cron. Call the script with a path to a new php.ini file wherein you make PHP to log the errors to STDERR or STDOUT.
php -h
will give you all commandline options.
Cron will send you the reports then if something failed by email.
Alternatively you can set this up to log into your own log as it's a new php.ini. In case that's easier for you to review.
You can set a custom error handler for most errors, and execute some code there.
But cannot handle an E_ERROR which is what your fatal error is likely to be.
Imagine if that error was for running out of memory. You try to handle that error, and end up using more memory. Which just throws another error, and you're right where you started.
Use register_shutdown_function() to register a function to execute as the last call. This will get call whether there was an error or not.
See http://php.net/manual/function.register-shutdown-function.php for more information.
You can do custom error handling in PHP. Check the manual at: http://php.net/function.set-error-handler. This is a fairly straightforward application of that.
Use
try
{
//Code
}
catch(Exception $e)
{
//Execute on error
}
My project has a requirement that it needs to check the password complexity before create the new account.
My code looks like:
NET_API_STATUS status;
NET_VALIDATE_PASSWORD_CHANGE_INPUT_ARG inputArg = {0};
NET_VALIDATE_OUTPUT_ARG* pOutputArg = NULL;
inputArg.ClearPassword = NewPass;
inputArg.PasswordMatch = TRUE;
status = NetValidatePasswordPolicy(DC, NULL, NetValidatePasswordChange,
&inputArg, (void**)&pOutputArg);
printf("status: %d, validationStatus: %d\n", status, pOutputArg->ValidationStatus);
NetValidatePasswordPolicyFree((void**)&pOutputArg);
I am working on windows XP.When I try to run, it prompt waring saying:
The procedure entry point NetValidPasswordPolicyFree could not be located in the dynamic link library NETAPI32.dll
From the MSDN it said the API is only valid in 2003 server and 2008 server.
Does it mean it can not work on XP?
Or can i find any other APIs to do the same thing as NetValidPasswordPolicy?
I googled a lot for this issue and found someone had asked similar question but it went unanswered :(. So, here I am trying my luck.
Even I tried to analyze 'NETAPI32.dll' in Reflector.exe, but while opening the .dll file it error out: Object reference not set to an instance of an object.
I am stuck badly and could not able to find any way. Any help will be appreciated :)
Issue has been solved :).
NetValidPasswordPolicy API from 'NETAPI32.dll' has requirements that it is not 'client' supported. Because of this requirement I am getting the warning: Entry point not found.
I tried my project on Windows 2003 server and it worked.
And my second question about 'Reflector.exe' is also invalid because 'NETAPI32.dll' is not .Net dll so Reflector wont recognize it.