Event Dispatcher

[Kagamin via Digitalmars-d-announce]

On Thursday, 10 March 2016 at 18:08:15 UTC, Eugene Wissner wrote:
> Why not just extend the HelloWorld class and override the 
> hello()? Imagine you write an apllication that should support 
> plugins. And two independent plugins extend the HelloWorld. One 
> plugin would conflict with the another. EventDispatcher make it 
> possible to register the events that can be used by application 
> plugins.

How about something like MEF?