SEHException from External Component Error

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SEHException from External Component Error

I have the error "System.Runtime.InteropServices.SEHException Additional Information External Component has thrown an Exception.

The Problem occurs when I try To instantiate an object which is contained in the header file that came with the 3rd party .dll I am using. The header for the file looks like this:

#ifdef QUANTUM_EXPORTS

#define QUANTUM_API __declspec(dllexport)

#else

#define QUANTUM_API __declspec(dllimport)

#endif

///////////////////////////////////////////////////////////////////////////////////////////////////

class CQUANTUM

{

public:

QUANTUM_API CQUANTUM(void);

QUANTUM_API ~CQUANTUM(void);

QUANTUM_API bool SetDataPath(int MNum);

.........................

And In my code I call CQUANTUM QuantumObj; The error occurs, however this error only occurs when I turn on the /clr tag.

I have tried to use

catch(System::InteropServices::SEHException *ex)

{

System::Exception *e;

e = ex->GetBaseException();

}

but I find that e is the same as ex;

Anyone got any idea why the external DLL is not working in managed code or why I cannot get the base error it is throwing

thanks,

Jen

Answer this question

SEHException from External Component Error

Andrea43086

One way you get this exception is if unmanaged code does an win32 RaiseException() or causes a fault. If that exception is propagated up the stack to managed code, it will map to a managed Structured Exception Handler(SEH). For example, STATUS_NO_MEMORY maps to OutOfMemoryException and STATUS_ACCESS_VIOLATION maps to NullReferenceException.

For all the exception codes that don’t have a predefined mapping, will be wrapped into System.Runtime.InteropServices.SEHException. The SEHException class also responds to the HRESULT E_FAIL, which has the value 0x80004005 (Unknown error). In my experience E_FAIL is usually thrown for some security reason, but this is not a rule.

Check the ErrorCode field of the SEHException for the actual HRESULT thrown. See http://msdn2.microsoft.com/en-us/library/9ztbc5s1(VS.80).aspx for a HRESULT to Managed Exception map.

If the InnerException property is null on any exception, the GetBaseException method will always return the current exception. The ErrorCode is your best bet to find out whats wrong. But an E_FAIL or 0x80004005 is usually of not much help. Try calling the COM component from unmanaged code (VB/VC/VBScript).
janekw
Any Ideas

Am I using the correct method to get the Exception that the DLL may have thrown

jen

Yashraj

-2147467259 base10 = 0x80004005 base16. == Unknown error/E_FAIL.

// Store integer -2147467259
int decValue = -2147467259;
// Convert integer -2147467259 as a hex in a string variable
string hexValue = decValue.ToString("X");
// Convert the hex string back to the number
int decAgain = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber);

Ah.. the hex values arent listed for each HRESULT. Maybe this would help.

`AccessException`	`COR_E_MEMBERACCESS (0x8013151A)`
`AmbiguousMatchException`	`COR_E_AMBIGUOUSMATCH (0X80138000211D)`
`appdomainUnloadedException`	`MSEE_E_APPDOMAINUNLOADED (0x80131015)`
`ApplicationException`	`COR_E_APPLICATION (0x80131600)`
`ArgumentException`	`COR_E_ARGUMENT (0x80070057 )`
`ArgumentNullException`	`E_POINTER (0x80004003)`
`ArgumentOutOfRangeException`	`COR_E_ARGUMENTOUTOFRANGE (0x80131502)`
`ArithmeticException`	`COR_E_ARITHMETIC (0x80070216)`
`ArrayTypeMismatchException`	`COR_E_ARRAYTYPEMISMATCH (0x80131503)`
`BadImageFormatException`	`COR_E_BADIMAGEFORMAT (0x8007000B)`
`CannotUnloadappdomainException`	`COR_E_CANNOTUNLOADAPPDOMAIN (0x80131015)`
`COMException`	Any other `hrESULT` defaults to this .Net Exception
`ContextMarshalException`	`COR_E_CONTEXTMARSHAL (0x80090020)`
`CryptographicException`	`NTE_FAIL (0x80004001)`
`CryptographicUnexpectedOperationException`	`CORSEC_E_CRYPTO_UNEX_OPER (0x80131431)`
`CustomAttributeFormatException`	`COR_E_FORMAT (0x80131537)`
`DirectoryNotFoundException`	`COR_E_DIRECTORYNOTFOUND (0x80070003) STG_E_PATHNOTFOUND (0x80030003)`
`DivideByZeroException`	`COR_E_DIVIDEBYZERO (0x80020012)`
`DllNotFoundException`	`COR_E_DLLNOTFOUND (0x80131524)`
`DuplicateWaitObjectException`	`COR_E_DUPLICATEWAITOBJECT (0x80131529)`
`EndOfStreamException`	`COR_E_ENDOFSTREAM (0x801338)`
`EntryPointNotFoundException`	`COR_E_TYPELOAD (0x80131522)`
`Exception`	`COR_E_EXCEPTION (0x80131500)`
`ExecutionEngineException`	`COR_E_EXECUTIONENGINE (0x80131506)`
`ExternalException`	`E_FAIL (0x80004005)`
`FieldAccessException`	`COR_E_FIELDACCESS (0x80131507)`
`FileLoadException`	`COR_E_FILELOAD (0x80131621 or 0x80131018)`
`FileNotFoundException`	`COR_E_FILENOTFOUND (0x80070002)`
`FormatException`	`COR_E_FORMAT (0x80131537)`
`IndexOutOfRangeException`	`COR_E_INDEXOUTOFRANGE (0x80131508)`
`InvalidCastException`	`COR_E_INVALIDCAST (0x80004002)`
`InvalidComObjectException`	`COR_E_INVALIDCOMOBJECT (0x80131527)`
`InvalidFilterCriteriaException`	`COR_E_INVALIDFILTERCRITERIA (0x80131601)`
`InvalidOleVariantTypeException`	`COR_E_INVALIDOLEVARIANTTYPE (0x80131531)`
`InvalidOperationException`	`COR_E_INVALIDOPERATION (0x80131509)`
`InvalidProgramException`	`COR_E_INVALIDPROGRAM (0x8013153A)`
`IOException`	`COR_E_IO (0x80131620)`
`IsolatedStorageException`	`ISS_E_ISOSTORE (0x80131450)`
`MarshalDirectiveException`	`COR_E_MARSHALDIRECTIVE (0x80131535)`
`MethodAccessException`	`COR_E_METHODACCESS (0x80131510)`
`MissingFieldException`	`COR_E_MISSINGFIELD (0x80131511)`
`MissingManifestResourceException`	`COR_E_MISSINGMANIFESTRESOURCE (0x80131532)`
`MissingMemberException`	`COR_E_MISSINGMEMBER (0x80131512)`
`MissingMethodException`	`COR_E_MISSINGMETHOD (0x80131513)`
`MulticastNotSupportedException`	`COR_E_MULTICASTNOTSUPPORTED (0x80131514)`
`NotFiniteNumberException`	`COR_E_NOTFINITENUMBER (0x80131528)`
`NotImplementedException`	`E_NOTIMPL (0x80004001)`
`NotSupportedException`	`COR_E_NOTSUPPORTED (0x80131515)`
`NullReferenceException`	`COR_E_NULLREFERENCE (0x80004003)`
`OutOfMemoryException`	`COR_E_OUTOFMEMORY (0x8007000E)`
`OverflowException`	`COR_E_OVERFLOW (0x80131516)`
`PathTooLongException`	`COR_E_PATHTOOLONG (0x8013206)`
`PlatformNotSupportedException`	`COR_E_PLATFORMNOTSUPPORTED (0x80131539)`
`PolicyException`	`CORSEC_E_POLICY_EXCEPTION`
`RankException`	`COR_E_RANK (0x80131517)`
`ReflectionTypeLoadException`	`COR_E_REFLECTIONTYPELOAD (0x80131602)`
`RemotingException`	`COR_E_REMOTING (0x8013150B)`
`RemotingTimeoutException`	`COR_E_REMOTING (0x8013150B)`
`SafeArrayTypeMismatchException`	`COR_E_SAFEARRAYTYPEMISMATCH (0x80131533)`
`SafeArrayRankMismatchException`	`COR_E_SAFEARRAYRANKMISMATCH (0x80131538)`
`SecurityException`	`COR_E_SECURITY (0x8013150A)`
`SEHException`	`E_FAIL (0x80004005)`
`SerializationException`	`COR_E_SERIALIZATION (0x8013150C)`
`ServerException`	`COR_E_SERVER (0x8013150E)`
`StackOverflowException`	`COR_E_STACKOVERFLOW (0x800703E9)`
`SUDSGeneratorException`	`COR_E_EXCEPTION (0x80131500)`
`SUDSParserException`	`COR_E_EXCEPTION (0x80131500)`
`SynchronizationLockException`	`COR_E_SYNCHRONIZATIONLOCK (0x80131518)`
`SystemException`	`COR_E_SYSTEM (0x80131501)`
`TargetException`	`COR_E_TARGET`
`TargetInvocationException`	`COR_E_TARGETINVOCATION (0x80131604)`
`TargetParameterCountException`	`COR_E_TARGETPARAMCOUNT (0x80138002)`
`ThreadAbortException`	`COR_E_THREADABORTED (0x80131530)`
`ThreadInterruptedException`	`COR_E_THREADINTERRUPTED (0x80131519)`
`ThreadStateException`	`COR_E_THREADSTATE (0x80131520)`
`ThreadStopException`	`COR_E_THREADSTOP`
`TypeInitializationException`	`COR_E_TYPEINITIALIZATION (0x80131534)`
`TypeLoadException`	`COR_E_TYPELOAD (0x80131522)`
`TypeUnloadedException`	`COR_E_TYPEUNLOADED (0x80131013)`
`UnauthorizedAccessException`	`COR_E_UNAUTHORIZEDACCESS (0x80070005)`
`VerificationException`	`COR_E_VERIFICATION`
`WeakReferenceException`	`COR_E_WEAKREFERENCE`

Eric Tsai
A managed Form application that calls an unmanaged dll.

The First Function is the one that that 2003 generated the second is the one 2005 generated
JohnRM2

Jenny,

Are you writing a managed application or unmanged application
B&#249;i Duy Hi&#7871;u
I Haven't managed to figure out what the problem was but I replaced the entry into the program:

int APIENTRY _tWinMain(HINSTANCE hInstance,

HINSTANCE hPrevInstance,

LPTSTR lpCmdLine,

int nCmdShow)

with:

int main(array<System::String ^> ^args)

and now no SEHException is thrown.

Only Problem now is that I can't get the hInstance to pass to my program
stanfordholden
The ErrorCode for The Exception is comming out as -2147467259 which doesn't seem to be right.

I do not see how I am supposed to make this map.

jen
SEHException from External Component Error

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