how can i get z?

[iiv03]

hello guys i work in guieditor and i get in ( Dimonsions ) x and y and Width and Heght

I'm working on script px and py i want to find z how?
I know my question is funny

[VenomOG]

You cannot , only get fully position
 

function hi ()
x,y,z = getElementPosition()
outputChatBox(""...x,y,z..."")
end
addCommandHandler("test",hi)