When you want to get information about a window, you have to ask Windows…
So, since I wanted information about a window (GUI) and not Windows (OS from Microsoft), î was… having mental troubles !
Or you could search for ‘DesktopWindow’ which I think is what you are mostly interested in anyway.
That’s it: I do not think to add the prefix.
I hate to have to set a prefix…
Look back to the s creen shot from the documentation: They too do not add Desktop in front of Windows !
No kudos for the author.
If only AutoComplete was active in the documentation too !
I have more and more good answers from the documentation and I ask Gemini far more often and usually get good answers or take a hint to know how to ask the documentation ( 
).