Gets or sets the radius of the rounded corners of the tooltip window.
The radius of the rounded corners.
Use the property to specify the radius of rounded corners when the ToolTipControllerShowEventArgs.Rounded property is true. If ToolTipControllerShowEventArgs.Rounded property is false, RoundRadius is not in effect.
For more information refer to the ToolTipController.RoundRadius topic.
The Rounded and RoundRadius properties are not in effect for SuperToolTips.