How do you check if you are subscribed to a certain instrument? C# ninja trader

[DarkCapital]

Var inst = "ES 06-20";
if("ES" is NOT subscribed)
{
NTClient.SubscribeMarketData(inst);
}else
{

}

How do i do this? how do i check if 'inst' is subscribed?

**note:
var wtf = NTClient.Connected(0);
this ^ always returns 0, whether im connected or not.

[NinjaTrader_ChelseaB]

Hello DarkCapital,

Welcome to the NinjaTrader forums.

To clarify, this is a question specifically for the API (Application Programming Interface), correct?

Below is a link to a forum post on using the NinjaTrader API.

https://ninjatrader.com/support/forum/forum/ninjatrader-8/strategy-development/100199-orders-are-not-displayed-in-chart?p=793626#post793626

When calling SubscribeMarketData(), if this returns a negative -1 there was an error and there is no subscription.

If MarketData() is called when there is no subscription, this would cause a run-time exception in the external application. This exception could be caught in a try and catch to determine if the call to MarketData() is failing.

[DarkCapital]

Hello Chelsea, i clicked on the link and checked the documentation, all of the functions are returning 0, there is nothing to let me know whether im subscribed to an instrument or not

[NinjaTrader_ChelseaB]

Hello DarkCapital,

To confirm, you are asking about the API or are you asking about a NinjaScript method?

Which method are you referring to?

In the documentation linked from the forum post about the API are you asking about SubscribeMarketData()?
From the help guide:
"int SubscribeMarketData(string instrument)

Starts a market data stream for the specific instrument. Call the MarketData() function to retrieve prices. Make sure you call the UnSubscribeMarketData() function to close the data stream. A return value of 0 indicates success and -1 indicates an error."

[DarkCapital]

I am using the API