Importing attribute class in managed C++

[rocambole]

I have a C# class that defines an atribute. Works like a charm. For various reasons, I have a managed C++ class that needs to use this attribute.

In C#

AttributeUsage(AttributeTargets.Field, AllowMultiple = false)]
public class MyAttribute: Attribute
{
private string resourceName = string.Empty;
public MyAttribute(string ResourceName)
{
resourceName = ResourceName;
}

public string ResourceName
{
get { return resourceName; }
}
}

It is stored in a dll called My.dll

I want to reference this from C++, how is the best way. Is there a simple include statement? Like #include "my.dll" to define the classes or do I have to do something ugly like create an import lib and assocated crap.

Thank you