Can I control voltage of USB data pins?
Basically, NO. USB is a complex protocol, and there is no direct way to control the D+ and D- lines (your ONE and TWO) from software. You can only cause the USB stack to send certain messages, embedded somewhere in a stream of other messages.

But you MIGHT be able to switch the power to the USB port (your GND and VOC)off and on under software control. Most laptops can do this in some power down mode, so there might be a way. Don't ask me how, I am not a PC guru. The catch will probably be that you switch the power to ALL USB ports, including your mouse and keyboard...