The page doesn’t contain DesktopUIButton at all. None of the pages appear to reference the parent classes. That’s quite an oversight.
What I was actually looking for was the parent class to DesktopContainer, as it doesn’t appear to be DesktopWindow. The old docs tell me that yes, it is, but that’s odd because DesktopContainer is missing things that exist on DesktopWindow.
But still, back to my original point, how does somebody write developer docs without including the parent class?
Anyway, the control inheritance (or at least its direct ascendant, parent class) shouldn’t be a footnote, if possible.
Take for example .Net, all the base class definition is listed before the class details, as constructors, properties, methods, etc. Not in a “See Also” footnote.