main.js

var app = require('app'),  // Module to control application life.
    BrowserWindow = require('browser-window'); // Module to create native browser window.
    path = require('path'),
    ipc = require('ipc'),
    hashes = require('jshashes'),
    mime = require('mime'),
    fs = require('fs'),
    exec = require('child_process').exec;

    userName = process.env.USERNAME,
    domain = process.env.USERDOMAIN,
    palitagemRef = process.env.PALITAGEM_REF || '172.30.5.123';

    //
    // SHA512 = new hashes.SHA512,
    // loginId = path.join(domain,userName),
    // loginSHA = SHA512.hex(loginId);

// Report crashes to our server.
require('crash-reporter').start();

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the javascript object is GCed.
var mainWindow = null;

// Quit when all windows are closed.
app.on('window-all-closed', function() {
  if (process.platform != 'darwin')
    app.quit();
});

// Desabilitar http cache
app.commandLine.appendSwitch('disable-http-cache');

// This method will be called when Electron has done everything
// initialization and ready for creating browser windows.
app.on('ready', function() {

  // Create the browser window.
  mainWindow = new BrowserWindow({width: 400, height: 650 });
  mainWindow.loadUrl('file://' + __dirname + '/index.html');
  mainWindow.openDevTools();
  //mainWindow.loadUrl('http://' + palitagemRef + '/registro-chamadas/autenticacao?u=' + userName + '&d=' + domain + '&_t=' + Date.now());

  ipc.on('screenshot.electron', function(event, arg) {
    console.log('electron screenshot', arg);

    var pathPhoto = __dirname + '\\evidencia-' + arg + '.png';
    var prevTitle = mainWindow.getTitle(), tempTitle = "____PALITAGEM" + Date.now();
    mainWindow.setTitle(tempTitle);
    exec('nircmd.exe win trans ititle "' + tempTitle + '" 0', function () {
      exec('nircmd.exe savescreenshot ' + pathPhoto, function () {
        if (fs.existsSync(pathPhoto)) {
          console.log("Init SS");
          // var photo = { mimeType: mime.lookup(pathPhoto), base64: null };

          fs.readFile(pathPhoto, function (err, original) {
            console.log("FileRead DONE");
            if (!err) {
              //photo.base64 = original.toString('base64');
              mainWindow.webContents.send('screenshot.final', original.toString('base64'), 'evidencia-' + arg + '.png', mime.lookup(pathPhoto));
            }
            else {
              console.log("Sending event screenshot.error...");
              mainWindow.webContents.send('screenshot.error', err);
            }
          });
        }

        exec('nircmd.exe win trans ititle "' + tempTitle + '" 255', function () {
          mainWindow.setTitle(prevTitle);
        });
      });
    });
  });

  // Emitted when the window is closed.
  mainWindow.on('closed', function() {
    mainWindow = null;
  });
});