Accessing MarketData from a drawing tool ?

[EB Worx]

Hi Ninjatrader,

In an indicator we have OnMarketData() which allows us to use the ask/bid/price/volume of every level change.
Is there a way i can access this data from a drawing tool ? The ChartControl.BarsArray just contains information about bars
but i would like to have access to every level change

[NinjaTrader_ChelseaB]

Hello Erwin Beckers,

Drawing tools are meant to draw at the prices and times provided and do not have data driven methods and are not meant to continuously update with new data. In general these are meant to be drawn once and then remain.

You would need to subscribe to the market data using the Addon approach.

https://ninjatrader.com/support/helpGuides/nt8/en-us/marketdata.htm

[EB Worx]

Hi Chelsea,
I understand, but i would like to do something like ninjas Order flow Volume Profile drawing tool does.
Where the users selects a piece of the chart and the drawing tool can do some analysis on the market data of that exact piece of the chart and draw its result.
So i don't need some data driven method to continuously update the chart, i just want to get the market data for a piece of the chart once and use if for my geometry drawing tool
Since the Order flow Volume Profile drawing tool is already doing this i suppose its possible to get this market data, perhaps via an undocument function ?

[NinjaTrader_ChelseaB]

Hello Erwin Beckers,

The Order Flow Volume Profile drawing tool is not using market data. This is using historical tick ask and bid data called from a bars request.

Below is a public link to the help guide on BarsRequest.
https://ninjatrader.com/support/help...arsrequest.htm