get_extended_error_info — Returns the extended error information for the calling thread's last HALCON error.
get_extended_error_info returns the last error code that occured in the calling thread. OperatorName contains the operator name of the HALCON operator that has set this error code. ErrorCode holds the actual error code and ErrorMessage the corresponding error message. If no error code has been set so far or a HALCON error comes with no extended error information, OperatorName and ErrorMessage contain an empty string and ErrorCode is set to 0. Please refer to 'Result' slot of the particular operator reference to determine whether and on which occasion an operator provides extended error information.
get_extended_error_info is thread-local, i.e., the extended error information is maintained on a per thread basis. Setting an extended error code in one thread does not affect the extended error information in any other thread. This also implies that an error code can only be retrieved within the thread that was calling the operator setting the extended error. A thread-local extended error will be cleared (and set again when applicable) as soon as an error occurs in any other successive operator call within the same thread or the thread terminates.
Operator that set the error code.
Extended error code.
Extended error message.