Axis Camera help!

[Lawlhwut]

When declaring the axis camera in our program, what do we put in the paranthesis?

class RobotDemo : public SimpleRobot
{
RobotDrive myRobot;
AxisCamera axis;
Joystick stick;

public:
RobotDemo(void):
myRobot(1,2),
axis(???????????????????????????????)
stick(1)...

What do I put in the ????????????????????? And to take a picture, do I just need axis.GetInstance, axis.GetImage? We need the image for particle analysis.