In the near future I will begin trading. Looking at all the different brokers the trading platform used is MetaTrader 4 or 5, which is fine.
I believe it is possible to carry out back testing using mql 4 or 5. However to save time I intend to continue using my own back testing engine which I have created.
What I would like to know is if it is possible to write code in mql 4 or 5 to annotate charts? Is so can you please tell me where I can find a good example for me to learn from.
For the sake of rapid prototyping, MT4 is for many reasons the safer choice.
MT4 code-execution engine allows to integrate process-to-process communications with external systems ( fully distributed heterogeneous multi-process & multi-platform system, be it called a Cloud or a Grid-computing or a MATRIX ).
One can similarly equip MT4 with a remote console and type manually commands or run script-batches of such command from a remote terminal CLI.
In the very same way one may operate a remote Backtesting engine on MT4 grounds via the same process-to-process messaging framework.
MT4 code-execution engine, using a C-family MQL4 language, has a feature-rich palette for chart annotations. Both [TimeDOMAIN,PriceDOMAIN] grid-locked and a screen-layout PixelDOMAIN [x,y] grid-locked. As a starting point, use the MQL4 language reference, Chapter on ( visual ) Objects.
As just a teaser,
check the MT4 possibilities:
<aMouseRightCLICK>.openPictureOnAnotherTab to see full HiRes picture details
or
