[Lazarus] Runtime error -- File Not Found

[Peter Williams]

Dear all,
I am using TAChart and I would like to see the mark of a point when the 
point is clicked or the mouse is over it.
Actually I do it using tchart.hint, TChartMouseMove event and 
GetNearestPoint function. In this way I show an hint any time the mouse 
pass over a point. Is it possible to do it directly using Marks of TChart?
I would like to decide to show the mark of a single point and not for 
all the points in the serie.
Regards,
Andrea