Deriving a D-class from a CPP-class

[Alain De Vos via Digitalmars-d-learn]

Is it ok to do the following ?
I.e. derive  a D-class from a CPP-class.
The compiler did not complained, and it was OK for him.
```
c++ -c MyClass.cpp
ldc2 main.d MyClass.o -L-lstdc++
```
```
extern(C++){
        class MyClass {
                public:
                        int num=1;
                        void myMethod();
        };
};

class Derived : MyClass{
};

int main(){
        Derived myObj;
        myObj.myMethod();
        return 0;
}

```

Could I use this method for using the C++-WXWIDGETS library 
directly?