Highlight-Data-Point Interactor

Using the Charts Library > Interacting with Charts > Using the Chart Interactors > Highlight-Data-Point Interactor

A highlight-data-point interactor allows the user to trigger an action whenever the mouse moves over a data point in the data display area. It has the following basic characteristics:


Class	IlvChartHighlightPointInteractor
Registered name	“ChartHighlightPoint”
Inherits from	IlvChartDataInteractor
Key or Button	None
Action	Allows the user to trigger an action whenever the mouse moves over a data point in the data display area.

No action is specified by default. The user has to specify by hand the action that should be triggered whenever the mouse moves over a data point in the data display area. This action is set by means of the setAction method. The action should be of the type IlvChartHighlightPointInteractor::Action:

typedef void (* Action )(IlvChartGraphic* chart,

IlvAbstractChartDisplayer* disp,

IlvChartDataSet* dataSet,

IlvUInt pointIndex,

IlvBoolean highlight);

Version 5.5.1