main.js

// Modules to control application life and create native browser window
const {app, BrowserWindow} = require('electron')
const path = require('path')
const notifier = require('node-notifier');

function createWindow () {
  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 900,
    height: 600,
    icon: "./logo/logo.png",
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
      nodeIntegration: true
    }
  })
  
  // String
  //notifier.notify('Message');

  // Object
  // notifier.notify({
  //   title: 'My notification',
  //   message: 'Hello, there!'
  // });
  
  // and load the index.html of the app.
  mainWindow.loadFile('index.html');
  mainWindow.webContents.on('dom-ready', function () {
    mainWindow.webContents.send('pathfile', app.getAppPath());
    mainWindow.webContents.send('imgpath', app.getPath("pictures"));
  });
  // Open the DevTools.
  //mainWindow.webContents.openDevTools()
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
  app.allowRendererProcessReuse = false;
  createWindow()
  
  app.on('activate', function () {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    //if (BrowserWindow.getAllWindows().length === 0) createWindow()
  })
})

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') app.quit()
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.