Hi Franck, how have you been?
Artboard Rect receives an array of 4 bounds coordinates... The sequence is: [left, top, rigth, bottom]
Does it make sense?
Makes sense, and sort of what i had.
Now, the real question remains
Except trial and error, do you have some other reference to check ?
Cause artboardRect is not the only one i struggle with these days (starting from scratch).
If you do not know these manuals, you can look at the yellow box in the top of this forum main page: http://forums.adobe.com/community/illustrator/illustrator_scripting
But, yes, some methods and properties are really vague in information :/
The "DOM Help viewer" in the EStK is so limited, I wrote my own version of it. Downloadable for a random list of Illy versions from my site: http://www.jongware.com/idjshelp.html
.. Only CS6 version, on-line browsable at MIT (bandwidth graciously provided by John Hawkinson): http://jongware.mit.edu/iljscs6html/iljscs6
My versions contains the exact same information (after all, they are generated from the same set of data files) but have more inter-linking, better cross-referencing, and nicer visuals to the originals.
Before i get my self too deep inside this manual, let me say "thank you", this will help A LOT !