Scope resolution :: vs this ->

I am trying to understand pointers and scope in OOP with C++. Is there any difference at all between:

class Class 
{  
public:
    void setVal (int value) { 
        this -> value = value;
    }
    int getVal();
private:
     int value;
};

and this:

class Class 
{  
public:
    void setVal (int value) {
        Class::value = value;  
    }  
    int getVal();
private:
    int value;
};