Close	Closes the log handler. No further writing is allowed
GetOutput
Open	Opens the log handler and prepares it for writing
Write	Write the sMessage with optional level iLevel to the log handler
isEnabledFor	Returns whether the Logger object is enabled for (i.e. will not ignore messages for) the message level specified by iLevel.

This is the base class for all handlers.

If you want to write your own, instead of using any of the defaults, it should extend from this class.