Yeah, sorry that just gives "LCD.h:58: error: prototype for 'void LCDUPDATE::lcdupdate(int, int, int, int, int, int, int)' does not match any in class 'LCDUPDATE'"
The tutorial I was following was: https://www.arduino.cc/en/Hacking/LibraryTutorial which also has the :: but I guess I'm not understanding what is going on here.
I'm assuming that by not using :: I actually had the lcdupdate function off on its own and not in the LCDUPDATE class, right?