LEADTOOLS CCOW Error Handling

CCOW Error Handling

The CCOW Context Management Architecture defines a set of exceptions that components can raise. There is no provision in the current standard for context participant applications to throw exceptions.

All automation and dual interface methods in ActiveX implementation return 32-bit encoded HRESULT error values. In addition, the Microsoft-defined IErrorInfo and ISupportErrorInfo interfaces can provide additional error information including a textual description of the error and the GUID of the interface that threw the error.

The of CCOW Context Management Architecture defined HRESULTS values are listed in the table below:

Exception Hexadecimal Value Explanation
NotImplemented 0x80004001L Method not implemented. This is the same value as defined for the Win32 E_NOT_IMPL HRESULT.
GeneralFailure 0x80004005L An error was detected or a failure occurred. This is the same value as defined for the Win32 E_FAIL HRESULT.
ChangesNotEnded 0x80000201L Attempt to publish context changes before ending the context change transaction.
InvalidContextCoupon 0x80000203L A context coupon does not match most recently committed coupon or current transaction coupon.
GeneralFailure 0x80000204L A context coupon does not match most recently committed coupon or current transaction coupon.
reserved 0x80000205L
NameValueCountMismatch 0x80000206L A name array and its corresponding value array do not have the same number of elements.
NotInTransaction 0x80000207L Attempt to perform a context management transaction method when a transaction is not in progress.
TransactionInProgress 0x80000209L Attempt to perform a context management method when a transaction is in progress.
UnknownItemName 0x8000020AL An item name not known.
UnknownParticipant 0x8000020BL Participant coupon does not denote a known participant.
TooManyParticipants 0x8000020CL Attempt to join a context that can't accommodate another participant.
AcceptNotPossible 0x8000020DL Attempt to publish an “accept” decision but there were participants for which it was not possible to obtain a survey response (e.g., these participants were blocked).
BadItemNameFormat 0x8000020EL An item name does not conform to format rules.
BadItemType 0x8000020FL An item data type does not conform to data definition for the item.
BadItemValue 0x80000210L An item value does not conform to the allowed set of values as defined by the data definition for the item.
InvalidTransaction 0x80000211L A transaction has been invalidated and aborted because it violates one or more semantic integrity constraints.
UndoNotPossible 0x80000212L Attempt to undo context changes after the transaction has ended.
ChangesNotPossible 0x80000213L Attempt to set or delete context data after the transaction has ended.
ChangesNotAllowed 0x80000214L Mapping agent attempts set or delete a context data item that has been set by the participant that instigated the transaction.
AuthenticationFailed 0x80000215L A signature could not be authenticated.
SignatureRequired 0x80000216L A signature is required to perform the method.
UnknownApplication 0x80000217L An application name is not known.
UnknownConnection 0x80000218L A connection is not known to the authentication repository.
LogonNotFound 0x80000219L The desired user logon is not found in the authentication repository.
UnknownDataFormat 0x8000021AL The format of user authentication data requested could not be found in the authentication repository.
UnknownBindee 0x8000021BL A security binding coupon does not denote a known bindee.
ImproperKeyFormat 0x8000021CL A public key is not properly formatted.
BindingRejected 0x8000021DL The identity of a bindee could not be verified.
ImproperMACFormat 0x8000021EL A message authentication code is not properly formatted.
UnknownPropertyName 0x8000021FL A property name is not known.
BadPropertyType 0x80000220L A property data type does not conform to specification.
BadPropertyValue 0x80000221L A property data value does not conform to specification.
AlreadyJoined 0x80000222L The application has already joined the context.
ActionNotPossible 0x80000223L There is presently a context change transaction in progress or another action is being performed.
ActionNotAllowed 0x80000224L Application attempts to set items other than for the context action to be performed.
FilterNotSet 0x80000225L Application attempts to get the names of subjects that are being filtered on its behalf, but a filter is has not yet been set by the application
ImproperSignatureFormat 0x80000226L A digital signature code is not properly formatted.
ContextNotActive 0x80000227L A context manager does not represent an active session.
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