Item(Index: Integer): ISpeedometerArrow;
Index - an index of arrow which parameters it is necessary to obtain.
The Item property returns the parameters of arrow, which index is passed by the Index parameter.
Executing this example requires a form with the Button1 button and the SpeedometerBox component named SpeedometerBox1.
Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Var
s: ISpeedometer;
Scale: ISpeedometerScale;
Arrow: ISpeedometerArrow;
Begin
s := SpeedometerBox1.Speedometer;
s.BeginUpdate;
Scale := s.Scales.Item(0);
Arrow := Scale.Arrows.Item(0);
Arrow.Value := 135;
End Sub Button1OnClick;
If the user presses the button after executing this example, the value displayed by speedometer arrow is changed.
See also: