All of the Arbortext Editor COM interfaces support the ErrorInfo COM interface and use it to pass error messages to the client if the called method fails. All supplied methods return an HRESULT which indicates success or failure and the general nature of the failure. Developers can use standard COM practices to retrieve error codes and error messages.

The DOM specification indicates that several methods will raise an exception upon certain types of failure. This is also the case for several AOM methods. Since the COM interface doesn't support exceptions, these failures will be turned into HRESULT return values. The specific value returned for a given exception can be found in the type library for the Arbortext-path\bin\editor.exe binary. They're also presented in the tables that follow. The general rule is that these exceptions will be returned as DOM_E_YYY_ERR for the DOMException, EventException and RangeException errors, TABLE_E_YYY_ERR for TableException errors, WINDOW_E_YYY_ERR for WindowException errors, and EXECUTE_E_YYY for AclException errors.

The following tables list the COM error codes and values for each range of errors. See the exception interface definitions in Interface Overview for the exception codes and their meanings.

JScript maps the COM errors to the Error object, and VBScript maps the COM errors to the Err object. See JScript Exception Handling and VBScript Error Handling for details.