Do I need mql4 code to create ea?

[exptrades]

Hi, 

I have a indicator as ex4 file and I want to create a EA based on it. It's an indicator which shows me arrow to buy or sell. Do I need to have it's mql4 code to create EA related with that ? Is there any way / sample code by which I can use that indicator's ex4 itself  to create EA ?

[Jose Francisco Casado Fernandez]

No, you do not need the indicator's mq4 code to create an EA based on it. You only have to call the indicator using the iCustom function Regards.

[William Roeder]

See my example for encapsulating calls
          Detailed explanation of iCustom - MQL4 and MetaTrader 4 - MQL4 programming forum

[Ahmed Soliman]

Jose Francisco Casado Fernandez:
No, you do not need the indicator's mq4 code to create an EA based on it. You only have to call the indicator using the iCustom function Regards.

you need it Only if the indicator has no buffers or you don't know its buffers.

[Jose Francisco Casado Fernandez]

Ahmed Soliman:

Yes, but generally almost all indicators have buffers, especially those that give buy and sell signals by drawing arrows (which is the type of indicator the OP has described).

So it can be assumed that it will have buffers. The answer was in general terms. On the other hand, it is usually quite easy to deduce how many buffers it have and to which each one corresponds (just look at the Data Window)

Regards.