class messageEvent

A messageEvent is triggered when the user tries to send a message on a box or a scene (when sent on a scene, it is actually sent on the root box of the scene). MessageEvent will NOT bubble up. The payload of the message is a basics::dictionary which can be accessed from the paramsDictionary property.
messageEvent types include:

• message - fired when sendMessage() is called on a box or a scene

See the scene::sendMessage documentation for more information. See the box::sendMessage documentation for more information.