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 =newBrowserWindow()
const{ port1, port2 }=newMessageChannelMain()
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)
}
})
warning
Electron's built-in classes cannot be subclassed in user code. For more information, see the FAQ.
Instance Properties
channel.port1
A MessagePortMain property.
channel.port2
A MessagePortMain property.