thanks especially seeing everybody giving advice in same direction and that put little confusion in mind....Is there Trading Palform which can be custimized using our own C++ functions...For example quantconnect provides this but with C# "https://www.quantconnect.com/"
I am looking for C++ platform
You are spoilt for choices ... and programming choices can easily derail your trading.
Amibroker provides C++, C++ via COM and C# via COM in addition to plain 'ol VB Script.
In addition to this, some third party Euro guy has written a library that he sells and his library allows you to write well-powered plugins in any .NET programming language (C#/VB....)
Another Russian guy shares source code of a free library that too enables .NET for Ami but I was unable to get the Russian stuff working... (Maybe its my fault or lack of understanding, maybe its something else ...)
NinjaTrader supports C# and it too allows usage of C++ for some of its export functionality.
Metastock supports C++ programming thru external DLL interface in addition to its template-based scripting language and I am sure you will find few other languages options under its hood too
FCharts also provides programming ability in scripting language that is canned down version of C
A while ago, I had seen a trading software that ran on Boost C++ Library and PROLOG ...
There are softwares that support Java too ...
Lastly, if you were to place serious enough cash on table, you could find someone willing to make you a software that will run your own home made programming language ...