Strange Mixin issue

[Frustrated]

I am trying to remove the unnecessary passing of the type of 
class to a template but can't seem to get it to work:

see



The code is the

	
	mixin(AbstractToInterface!(WindowsGui, iButton, WindowsButton, 
iBorder, WindowsBorder));

which I want to not have to specify WindowsGui.

I've tried wrapping AbstractToInterface in a mixin template and 
use that and typeof(this) but then the mixin of the mixin does 
not get mixed in to the class

e.g.,

mixin template AbstractToInterface2(T...)
{
     mixin(AbstractToInterface!(typeof(this), T));
}

Then use mixin AbstractTointerface2!(iButton, WindowsButton, 
iBorder, WindowsBorder).

It's probably something stupid but I can't seem to get it to 
work(have a very similar case in some other code and it works 
fine... the only difference is I'm not using nested mixins.