TCallout

TCallout
Hierarchy     Properties     Methods     

Unit
TeEngine

Description
This class is used by TSeriesMarks and TAnnotationTool to display a pointer shape (small rectangle, ellipse, etc) at the series mark point or the annotation link position.

The ancestor class TSeriesPointer is also used by TLineSeries, TPointSeries and many other series styles to display "pointers".

TCallout adds new properties:

Arrow ( Pen used to display a line between the series mark or annotation to series point )
Distance ( Length in pixels between the end of the series mark line and the series point )
ArrowHead and ArrowHeadSize properties.