MessagePortMain

MessagePortMain is the main-process-side equivalent of the DOM MessagePort object. It behaves similarly to the DOM version, with the exception that it uses the Node.js EventEmitter event system, instead of the DOM EventTarget system. This means you should use port.on('message', ...) to listen for events, instead of port.onmessage = ... or port.addEventListener('message', ...)

See the Channel Messaging API documentation for more information on using channel messaging.

MessagePortMain ist ein EventEmitter.

Class: MessagePortMain

Port interface for channel messaging in the main process.

Process: Main
This class is not exported from the 'electron' module. Es ist nur als Rückgabewert anderer Methoden in der Electron-API verfügbar.

Beispiel Methoden

port.postMessage(message, [transfer])

• message any
• transfer MessagePortMain[] (optional)

Sends a message from the port, and optionally, transfers ownership of objects to other browsing contexts.

port.start()

Starts the sending of messages queued on the port. Messages will be queued until this method is called.

port.close()

Trenne den Port, sodass er nicht mehr aktiv ist.

Instanz-Ereignisse

Event: 'message'

Kehrt zurück:

• messageEvent Object
  • data any
  • ports MessagePortMain[]

Wird ausgelöst wenn ein MessagePortMain Objekt eine Nachricht erhält.

Event: 'close'

Emitted when the remote end of a MessagePortMain object becomes disconnected.