Himself now a project need to monitor equipment temperature curve drawing, because its own graph space and ugly and function also is very weak, so are required to use the teechart, but online under the query to the others proposed the question, but no decent answered, hope everybody can give a example and related help, hope very detailed (now download a teechart pro v5. Ocx), also called DELPHI DLLS can also, but I hope I can passed the data set in the data window directly draw temperature curve, but never used, want to give directions!