Lazarus tchart label value onmousemove

Question

I'm drawing some TLineSeries on a TChart, I set values with this:

serie.Add(IncMinute(now,-j),Random(100),'My Label',clBlue);

And then I showing values on event ChartToolset1DataPointCrosshairTool1AfterMouseMove.

I get X and Y value with:

y := Serie.GetYValue(tool.PointIndex); my_date := Serie.GetXValue(tool.PointIndex);

And now I need to recover the value of the label and I cannot find how to do this, I need to get 'My Label', but maybe I'm wrong and this is impossible.

Thank you.

`Serie.Source.Item[tool.PointIndex]^.Text`? – Abelisto Jul 28 '15 at 09:59 — Abelisto, Jul 28 '15 at 09:59
Yes!!! Thank you very much, it works for me – user3177655 Jul 28 '15 at 10:14 — user3177655, Jul 28 '15 at 10:14

score 0 · Answer 1 · answered Jul 28 '15 at 09:33

0

Given you already have tool.PointIndex you can use that to retrieve labels, for example:

label := Serie.Labels[tool.PointIndex];

answered Jul 28 '15 at 09:33

Narcís Calvet

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Thx but .. I'm not using teechart, I'm using TChart from Lazarus and it has no Serie.Labels. – user3177655 Jul 28 '15 at 09:36

Lazarus tchart label value onmousemove

1 Answers1