How to pass a method as callback to another class?

Question

I have a question regarding callbacks using tr1::function. I\'ve defined the following:

  class SomeClass {
    public:
      typedef std::tr1::function

        

Answer 1

Why all this complicated mumbo-jumbo?

Why not create a class as thus (for example)

Class MouseOverEventCallBack
{
   public:
      virtual void RunMouseOverCallback() = 0;
};

Then just create classes that inherit this class (and redefine the method RunMouseOverCallback)

Then Register function just needs to be

void registerCallback(MouseOverEventCallBack *callbackObject); // possible could use a reference

The register method will just call the method and the object will have all that it needs.

Seems a bit simpler. Let the compiler do the work with pointers to functions etc.