class MyClass()
{
   class MyMod()
   {
      typedef void(*PointFn)();

      PointFunc myfunction;
   };

   void Init(MyMod::PointFn afunction);
}

...

void MyClass::MyMod::Init(MyMod::PointFn afunction)
{
   // do stuff
}



// now this calls the Init function:
// assume i have a StandAloneBig() and a AnotherClass::Big() defined...

void StandAloneBig()
{
  // not in class
}


void AnotherClass::Big()
{
  // funcyion in class
}


// from within AnotherClass class, i call:


CMyClass.Init(&Big);  // doesnt work

// but:

CMyClass.Init(&StandAloneBig);  // does work

error C2664: 'MyClass::MyMod::Init' : cannot convert parameter 2 from 'void(__thiscall AnotherClass::* )(void)' to 'MyClass::MyMod::Init'

struct A{  ...  struct FunctionObj  {    ...    void operator () ()    {      ...    }    ...  };  ...  FunctionObj * fn;};A a;A::FunctionObj f;a.fn = &f;*(a.fn)();        // dispatcha.fn->operator(); // dispatch