IErrorInfo::GetDescription
Returns a text description of the error.
If the lookup ID is IDENTIFIER_SDK_ERROR, the implementation of this method retrieves the error description from the data access error resource DLL. Otherwise, IErrorInfo::GetDescription calls IErrorLookup::GetErrorDescription to retrieve the string. If the description is parameterized, such as "Cannot open table <param1>," the lookup service incorporates the parameter values before returning the string.