I'm using a 3rd party library that allows me to register callbacks for certain events. The register function looks something like this. It uses the Callback signature.

```
typedef int (*Callback)(std::string);

void registerCallback(Callback pCallback) {
//it gets registered
}

```

My problem is that I want to register a member function as a callback something like this

```
struct MyStruct {
    MyStruct();
    int myCallback(std::string str);
};

MyStruct::MyStruct() {
    registerCallback(&MyStruct::myCallback);
}

int MyStruct::myCallback(std::string str) {
    return 0;
}

```

Of course, the compiler complains, saying

> 
> error C2664: 'registerCallback' : cannot convert parameter 1 from 'int (\_\_thiscall MyStruct::\* )(std::string)' to 'Callback'
> 
> 
> 

I've been looking at boost libraries like function and bind, but none of those seem to be able to do the trick. I've been searching all over Google for the answer, but I don't even know what to call this, so it hasn't been much help.

Thanks in advance.