Calling static method of a "qmlRegisterUncreatableType" class

[bmcd33]

Is there a way to call functions of c++ classes from qml without creating an object?

For example, I have a c++ class: OAuth, in it I have:
Q_INVOKABLE static bool login(const QString &username, const QString &password);

I register OAuth as an uncreatable type using: qmlRegisterUncreatableType<OAuth>("oauth", 1, 0, "OAuth", "Error.....");

but when I try to call OAuth.login(...., ....) from qml, it gives me:

"TypeError: Property 'login' of object [object Object] is not a function"

It works when I register OAuth using "qmlRegisterType" and then create an OAuth variable, but I would much rather be able to call the function without having to instantiate an object.

Thanks