Class methods in D?

[Mehrdad]

In Windows, you need to register a "window class" before you can actually 
create an instance of it.

Mapping this idea to D (and most other languages, I admit) is hard. 
Microsoft's solution in C# is pretty ugly.

The problem is this:
You make a class like
class Window
{
    HWND handle;
    virtual @property string className()  // How the system identifies this 
subclass
    { /*some default code for lazily registering a class*/ }
    this() { this.handle = className(this.className, ...); }
}
which people are supposed to inherit from.

The trouble is that there is *no clean way* (that I can think of) to ensure 
this:
if (typeid(windowA) == typeid(windowB))
{ assert(windowA.className == windowB.className); }

This is necessary in order to make sure that the idea of a "class" in D is 
the same as the one that the system sees.

If className() was class method, this assumption would be trivial to ensure: 
subclasses could override it, and it would be the same for all instances of 
the class. It would map to OOP in D **VERY** cleanly.
Right now, though, it's a big pain to map this concept... and the lack of 
proper reflection isn't helping.
(Microsoft just decided to make it an instance property, but if you look at 
the code, you'll see it's infinitely ugly...)

Is there any chance that we can get (overridable) class methods in D?
If not, is there a good solution to this problem?
(At least, will it be possible to retrieve the static methods of a class 
with reflection?)