Sending a message to the parent window in Electron

Question

I have a rendering process open a modal window

import { remote } from 'electron';

let currentWindow = remote.getCurrentWindow();
let modalWindow = new BrowserWindow({width:800, heigh:500, parent:currentWindow});
modalWindow.loadURL('views/second.html');

How can I pass a message from the modalWindow back to its parent?

Answer 1

You have to use ipc communication.

In the Main process:

ipcMain.on('asynchronous-message', (event, arg) => {
   //manage data
})

And in your modalWindow:

ipcRenderer.send('asynchronous-message', message)

ipcMain doc

ipcRenderer doc