class BaseWindow;

class Button
{
public:
            Button(BaseWindow* parent)
            {
                        parent->AddButton(this);
            }

            void SetBehavior(/*Owners pointer and owner's methos*/)
            {
                        /* Save Owner pointer and owner's method*/
            }

            void Clicked(/*coords*/)
            {
                        if(/*coords == my coords*/)
                        {
                                    /*Call Owner's method*/
                        }
            }
};

class BaseWindow
{
            vector<Button*> Buttons;

            WindowClicked(/*coords*/)
            {
                    for (std::vector<Button*>::iterator it = Buttons.begin(); it != Buttons.end(); ++it)
                    {
                                it->Clicked(/*coords*/);
                    }
            }

public:
            void AddButton(Button* butt)
            {
                            Buttons<<butt;
            }

};

class UserWindow:public BaseWindow
{
            Button MyButton;
public:
            void FunctionForButton(Button* butt){ cout<<"Say Hello, my sweet button";}

            UserWindow():MyButton(this)
            {
                        MyButton.SetBehavior(/*Put here my Function for Button and my pointer*/);
            }
};

typedef void (BaseWindow::*TBehavior)(Button *);

(parent->*behavior)(this);

MyButton.SetBehavior(static_cast<TBehavior>(&UserWindow::FunctionForButton));