The GripperProxy class is used to control a gripper device. The latest gripper data held in a handful of class attributes. A single method provides user control.
unsigned char state,beams;
bool outer_break_beam,inner_break_beam, paddles_open,paddles_closed,paddles_moving, gripper_error,lift_up,lift_down,lift_moving, lift_error;
GripperProxy(PlayerClient* pc, unsigned short index, unsigned char access='c')
int SetGrip(unsigned char cmd, unsigned char arg=0)