Could you please elaborate a bit more on the usage.
I am trying to accomplish the exact same behavior but am having trouble getting the code to work.
I have a user control that gets called via the RadToolTip Manager. This user control has a grid, on selecting any of the items in the grid the tooltip should close and populate a textbox on the parent page.
Following is the code that I have written in the select index changed of the grid in the user control
//do something with value from tool tip
tooltip = Telerik.Web.UI.RadToolTip.getCurrent();