[Pas2js] TObject.Dispatch messages

[Michael Schnell]

Is this just a language feature or is some message ques infrastructure in place (implemented in library code or by some - to me unknown - API provided by the browser) ? 

Are there any external sources for such messages such as key-pressed, mouse, TCP/IP activity, "ready" event from whatever functionality, software running outside of the browser, ... ? 

-Michael