demo mode annoyance, how?

[Morphoice]

How would you go about making a plugin that has a typical Demo Mode
e.g. stops working after a certain runtime or outputs a periodical noise?

Are there any code examples?

[d.healey]

@Morphoice It can be easily bypassed but if you want to do it just add a script with a timer, once a specified time has passed just block all MIDI or set the gain to -100.

[Morphoice]

@d-healey it's just intended as a nudge to upgrade, not a sort of copy protection. I guess those not able or willing to license a plugin AND able to crack/bypass wont be kept by any sort of method anyways, will they?