[Lazarus] TChart - How to read first/last values from DbChartSource after zoom

Gabor Boros gaborboros at yahoo.com
Fri May 10 18:19:16 CEST 2013


I have one DBGrid and Chart(LineSeries) with same DataSource. Want to 
filter DBGrid's content depend Chart's zoom status. How to read the 
actual first/last values from Chart if it zoomed?


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