MessageChannelMain
MessageChannelMain
is the main-process-side equivalent of the DOM
MessageChannel
object. Its singular function is to create a pair of
connected MessagePortMain
objects.
See the Channel Messaging API documentation for more information on using channel messaging.
Class: MessageChannelMain
Channel interface for channel messaging in the main process.
Process: Main
Example:
// Main process
const { BrowserWindow, MessageChannelMain } = require('electron')
const w = new BrowserWindow()
const { port1, port2 } = new MessageChannelMain()
w.webContents.postMessage('port', null, [port2])
port1.postMessage({ some: 'message' })
// Renderer process
const { ipcRenderer } = require('electron')
ipcRenderer.on('port', (e) => {
// e.ports is a list of ports sent along with this message
e.ports[0].onmessage = (messageEvent) => {
console.log(messageEvent.data)
}
})