Get drone location before takeoff

Hello ,
I am using the following code to try to get the drone position before takeoff. It is not working. It does work if I use it after the drone has taken off and moved. Is there a way to get the drone position before moving?
thanks John

# Get drone position
#drone_location = drone.get_state(GpsLocationChanged)
print("##################################################")
print("DRONE Location  =   ",drone_location)        
print("Drone Latitude  =   ",drone_location["latitude"])
print("Drone Longitude =   ",drone_location["longitude"])
print("Drone Altitude  =   ",drone_location["altitude"])
print("##################################################")

Hello,

This question has already been answered here:

Please let me know it that works for you, thanks

Nicolas