The point of the lock feature is that other people do not know that messenger is running, especially if you only use a shortcut to unlock it. And also the reason why the option "you need to hold ctrl to unlock" is there. Making such a dialog makes all these options useless.
If your teacher starts clicking on each icon and this popup turns up to tell him the proper shortcut to unlock it, then what is the point of the lock feature (other than setting a password)?
Remember, the lock feature comes from two old features: Boss Protection (which hide the windows, but didn't locked anything) and Messenger Lock (which locked messenger with a password, but didn't hide anything).
The new Lock Messenger feature combined these two. When the user will be presented with such dialog box popping up again, you actually revert back to how it was in Plus!3: simply hiding the window of Messenger, but otherwise plain visible to the teacher, you actually explain it to him, to what he must do to catch the pupil in the act.
quote:
Originally posted by ahmetgns
But think again and try to remember the time when you first locked messenger.
By that time I already read the options in the preference panel. Before using any feature the user should read what those features are and how they (roughly) work.... You don't jump into a race car without knowing how to drive, stop, and turn the engine back off either....
As for being enabled by default, yes, in my humble opinion it should be disabled by default (just to prevent people to jump into the race car, before putting on their racing gloves).