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