I use the Sterling API through Tradelink opensource code. If Ninja Trader uses C# code, you may be able to tie it into Sterling. I don't how to do it, but it may be possible.
@NinjaTrader_Ray, it´s a pity you can´t link your platform to those very common profesional platforms.
Let´s see if anyone could please help me.
Is there is anyone in the forum capable of programing such bridge between any of those platforms and NT or Multicharts (also have a DOM)? please contact me and give me a quotation for that work please.