How can I connect my Arduino with Blynk with BlueStacks or any other emulators?

I am making a project for controling a drone from my Computer. I downloaded BlueStacks and I connected my Arduino UNO with USB. But when I open Blynk app in BlueStacks it says “your controller is offline”. How can ı solve this problem?

http://help.blynk.cc/how-to-connect-different-hardware-with-blynk/arduino/usb-serial