TdxChartXYDiagramRangesChangeEventArgs Class

The base class for classes that store information related to zoom and scroll notification events in an XY diagram.

Declaration

delphi

TdxChartXYDiagramRangesChangeEventArgs = class(
    TdxEventArgs
)

The TdxChartXYDiagramRangesChangeEventArgs class has members that allow you to identify the following in an OnScroll or OnZoom event handler:

Scale ranges of the axis of arguments (X-Axis) before and after the current scroll or zoom operation (OldXRange and NewXRange).
Scale ranges of the axis of values (Y-Axis) before and after the current scroll or zoom operation (OldYRange and NewYRange).

Do not use the TdxChartXYDiagramRangesChangeEventArgs class directly. Use the following descendants instead:

TdxChartXYDiagramScrollEventArgsStores information related to an OnScroll event occurrence in an XY diagram.TdxChartXYDiagramZoomEventArgsStores information related to an OnZoom event occurrence in an XY diagram.

TObject TdxEventArgs TdxChartXYDiagramRangesChangeEventArgs