postMessage
abstract fun postMessage(channel: String, message: Any?, transfer: ReadonlyArray<MessagePort> = definedExternally)(source)
Send a message to the main process, optionally transferring ownership of zero or more MessagePort objects.
The transferred MessagePort objects will be available in the main process as MessagePortMain objects by accessing the ports property of the emitted event.
For example:
For more information on using MessagePort and MessageChannel, see the MDN documentation.