Calling methods of C++ class in MEX from MATLAB

Question

I have a DLP kit which I need to control via MATLAB using a C++ API.

Say, I have functions/methods using C/C++ for {load_data, load_settings,display_data}

Answer 1

Alternative design, cleaner for the use case here, is to define a singleton class with init, fcnA, fcnB, fcnC, ... methods ... etc, with corresponding lightweight wrappers.. and then invoke the wrappers from the MEX.

e.g.

class A {
  public:
     A getInstance() {
        if ( !instance )
             instance = new A(...);
        return instance;
     }

    void fcnA(T1 a1, T2 a2) {
           //yada yada
     }

  private:
    static A* instance;
};
A::instance = NULL;

//begin wrappers for marshalling to class method
A* getInstance( ) {
   return A::getInstance();
}

void fcnA(T1 a1, T2 a2) {
   getInstance()->fcnA(a1,a2);
}

//ad nauseum