First of all, I would like to thank the Lazarus development team for the hard work they do in order to provide the users of the programming language Object Pascal with a great tool.
Secondly, there is a typo in the message at the bottom of the Object Inspector describing the aim of the handler for the OnExit event that called my attention. The message says "Handler for control loosing the focus; This is a good place for checking the finished user input." The verb 'to loose' is mistakenly used instead of the verb 'to lose' when referring to the fact that the control does not have focus anymore.
Attached is a screenshot showing the aforementioned typo.