Unwrap a newly created `ObjectWrap` from `FunctionCallbackInfo`

[Gautham Badhrinathan]

I have an Object that extends node::ObjectWrap as follows:

class DNSServiceRefWrap : public node::ObjectWrap {
public:
    DNSServiceRefWrap();
    static void New(const v8::FunctionCallbackInfo<v8::Value> &args);
private:
    ~DNSServiceRefWrap();
    DNSServiceRef *ref;
}

In a method that I'm exporting through module.exports, I have:

void RegisterService(const FunctionCallbackInfo<Value> &args) {
    Isolate* isolate = Isolate::GetCurrent();
    HandleScope scope(isolate);

    DNSServiceRefWrap::New(args);
    // Over here
}

How do I unwrap and access the newly created DNSServiceRefWrap object here?

Note: I'm using node v0.11.13.

Cross posted on StackOverflow.

[Nathan Rajlich]

Sorry for not answering the question directly, but I'd highly recommend that you use nan (https://github.com/rvagg/nan) when writing your native addons. It ensures node compatibility for older versions as well as future ones, and has a slightly more pleasant to use API than V8's.

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