%class is an abstract class that provides a default implementation of the
TrackCursorListener interface with empty methods. This class allows TrackCursorListener objects to be created conveniently, as only the methods for the events of interest need to be overridden.
| Method | Inherited | Description |
| mouseMovedChart | (Self) | The system will call this method when the mouse moves over the chart. |
| mouseExitedChart | (Self) | The system will call this method when the mouse leaves the chart. |
| mouseMovedPlotArea | (Self) | The system will call this method when the mouse moves over the extended plot area. |
| mouseExitedPlotArea | (Self) | The system will call this method when the mouse leaves the extended plot area. |
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