You need to use electron remote
const {dialog} = require('electron'),
WIN = new BrowserWindow({width: 800, height: 600})
/*
//renderer.js - a renderer process
const {remote} = require('electron'),
dialog = remote.dialog,
WIN = remote.getCurrentWindow();
*/
let options = {
// See place holder 1 in above image
title : "Custom title bar",
// See place holder 2 in above image
defaultPath : "D:\\electron-app",
// See place holder 3 in above image
buttonLabel : "Custom button",
// See place holder 4 in above image
filters :[
{name: 'Images', extensions: ['jpg', 'png', 'gif']},
{name: 'Movies', extensions: ['mkv', 'avi', 'mp4']},
{name: 'Custom File Type', extensions: ['as']},
{name: 'All Files', extensions: ['*']}
],
properties: ['openFile','multiSelections']
}
//Synchronous
let filePaths = dialog.showOpenDialog(WIN, options)
console.log('filePaths)
//Or asynchronous - using callback
dialog.showOpenDialog(WIN, options, (filePaths) => {
console.log(filePaths)
})