Thank you for writing. Please clarify what you mean by controls to suit screen resolution
. If you are referring to the DPI independence of WPF, we do not support it because we are using System.Drawing.Graphics. The Graphics class is responsible for providing all the basic drawing algorithms and does not provide device independent units.
We provide a tool tip and it is called a ScreenTip. You can see it in action in our demo application --> RadGridView demos, to be more precise.
Please write back if you have other questions.
the Telerik team