oF - Including a variable form the main scope in a particular class

oF - variable from ofApp.h into other classes

//testApp reference from another class:

//from a .cpp file, for example, "particle.cpp" you can do two things:

//a) include "testApp.h"  (so you know what's inside the testApp)

//b) cast the ofGetAppPtr as a testApp ptr

//This is will be the .cpp of the class particle

#include "particle.h"  

#include "testApp.h"  

  

void particle::update(){  

   ((testApp*) ofGetAppPtr())->someVariableThatsInTestApp  = 100;  

}