I have the c file "tooltips.m" and its header file "tooltips.h" I am attempting to us the variable in "AppController.h" which is linked to the check box buttons on the gui. I have it have tried #import "AppController.h" and #include "AppController.h" however neither one works. I get that the variables I am attempting to use from "AppController.h" in "tooltips.m" as never been declared. What am I doing wrong???