#include <stdio.h>
#include <string.h>
    char* current_device_name;
    printf("The current name of the eye tracker is %s.\n", current_device_name);
        char* device_name;
        printf("The eye tracker changed name to %s\n", device_name);
    }
        printf("This eye tracker doesn't support changing the device name.");
        printf("You need a higher level license to change the device name.");
    }
}