const { app, BrowserWindow } = require('electron');
app.whenReady().then(() => {
  const win = new BrowserWindow({ show: false });
  win.webContents.executeJavaScript(`
    navigator.mediaDevices.getUserMedia({audio:true}).then(() => 
      navigator.mediaDevices.enumerateDevices()
    ).then(devices => devices.map(d => d.label))
  `).then(labels => {
    console.log("LABELS:", labels.filter(l => l.toLowerCase().includes('screenshare')));
    app.quit();
  });
});