类似于非XAML的DependencyObject

我需要在C ++和HTML / JS中创建WinRT组件作为后端。对于XAML应用程序，我可以创建一个继承自DependencyObject的基类，但我不能将它用于非XAML应用程序。我怎样才能使ref class not密封为我的其他类的基类
？

I need to create WinRT component in C++ and HTML/JS as a backend. For XAML apps i can make a base class inherited from DependencyObject, but i cannot use that for non XAML app. How i can make ref class NOT sealed as a base class for my other classes ?

示例：

public ref class TBase : <???>
{
};

public ref class TMyClass sealed : public TBase
{
};

public ref class THisClass sealed : public TBase
{
};