how to read environment variable or check for file existence

[RonnyKeller]

I'm looking for a way to display an alert on my charts if some necessary information in my overall trading environment (outside NT7) is faulty or missing.

So,I would like to either read a Windows environment variable's value or check whether a specific file exists on my computer from within NT7 indicator code, Is one or the other possible, and if so, how?

Thanks in advance for any advice

[NinjaTrader_Jim]

Hello RonnyKeller,

Thanks for writing in.

While both approaches are equally possible in C#, we have reference sample code on using System.IO to be able to read and write to files. We don't have a reference sample for reading Windows environment variables.

If you would like read a Windows environment variable , I would suggest checking out the MSDN documentation on Environment.GetEnvironmentVariable. Here is a link: https://msdn.microsoft.com/en-us/lib...v=vs.110).aspx

If you would like to do this by file, I would suggest to have a look at our reference sample for reading and writing files when using System.IO. Here is a link as well: http://ninjatrader.com/support/forum...ead.php?t=3477

Please let me know if you have any additional questions.

[RonnyKeller]

Thanks a lot, Jim - problem solved!!