TiPlotComponent.OnBeforeZoomBox

TiPlotComponent

Occurs before properties are loaded into the component using the Runtime Property Editor or LoadPropertiesFromFile method.

type TiPlotZoomBoxEvent = procedure(var ZoomRect: TRect; var Cancel: Boolean) of object;

property OnBeforeZoomBox : TiPlotZoomBoxEvent;

Description

Use OnBeforeZoomBox to specify actions to perform before the zoom is applied to the chart or to cancel the zoom before the zoom is applied.

To cancel the zoom, set the Cancel property to True

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