macOS Desktop level text (like geektool)

[hiddenpremise]

I would like to write an application that allows me to have text right above the desktop and is constantly updated from the internet. I know obj-c and have some cocoa experience, but I have no idea where to begin on this. Should I make a custom NSWindow class with no visible features and then put text inside that? How do I go about sticking it right above the desktop?

Any ideas are appreciated.
Thanks much,
Whit

EDIT!
Found my answer, thanks all
http://www.cocoadev.com/index.pl?NSWindowLevel

 

[Catfish_Man]

iirc use -setWindowLevel: to change the z-ordering of a window.

 

[hiddenpremise]

iirc use -setWindowLevel: to change the z-ordering of a window.

I've managed to get that to work, but I can't get the window behind the desktop no matter how high I set the negative number.

I have searched and searched to find what level the icon's live at and have had no luck.

 

[Objectivist-C]

Spelunk through the GeekTool source or ask a dev?