please How to know that high or low is the first ...

 

He for all ...

How to know that high or low is the first on a chart

thanks

 
Look at lower timeframes
 

Thank you very much for your answer, I mean programmatically , I am on a 30 min chart and I want to know if the high is the first or the low

Of bar N ....

thank you

 
jeef_1985: I mean programmatically
You haven't stated a problem.
You have only four choices: We're not going to code it for you (although it could happen if you are lucky or the problem is interesting.) We are willing to help you when you post your attempt (using SRC) and the nature of your problem.