##### Getting editing information

- getWarning()
  Gets and returns the warning message. If the operation is successful, it will return null.
- clearWarning()
  Clears the warning message.
- getError()
  Gets and returns the error message. If the operation is successful, it will return null.
- clearError()
  Clears the error message.
- clearMsg()
  Clears all warning and error messages.
- setLog(OutputStream log, String encoding)
  Sets the log to get error, debug and other information.
- writeLog(String msg)
  Writes all messages to the log.
- closeLog() throws IOException
  Closes the log.