Generally with hobbyist drones, people just use a separate wireless transmitter and receiver, since the RC radio cannot send or receive useful data like GPS location, battery voltage, etc etc. diydrones.com is a big help.
The only way I can think of having a computer control the RC radio is through the trainer port, but that would mean you writing custom software for the computer to generate the appropriate signals to emulate a slave radio that is connected to your main radio.
