any idea how to convert mql5 to mql4?

Hi mates,

Good day,

I wanted to open this topic long time ago, but couldn't because of hesitation, and too much work sometimes.

well, I know that we can convert any mql4 function to mql5 version, but here I want the reverse method or the way...

I'm sure you guys would say " what the heck is he talking about?"

let me make it clear. There are some new functions that are newly added to mql5 that made it unique and more capable of functioning in advance way. Now, what if we reverse that to make such functions useful in mql4 as well. Don't tell me we are going to move on to mql5 and use MT5 soon, that won't happen sooner just yet. Most brokers will keep using MT4 for a while tell traders get used to MT5 and the MAYBE they will think about it.

Now, let's begin a little here in reversing. I'll give you a simple question here, how do we function the command "int Digits" that is used in mql5 to work at mql4???

Maybe the answer is easy, but most of us don't know.

Nevertheless, the topic is open to everyone and especially for those who want to learn.

Waiting to hearing from you,

Best wishes,

Scarface

This is not a command. This is a variable declaration. Variable declarations work the same way.

But you cannot redefine Digits in mql4, you have to give it a different name. The variable "Digits" is already defined in mql4 and contains the number of digits for the current symbol.

The simple answer is that you cannot reverse convert from MQL5 to 4 especially the functions that are unique and more capable. One simple example should illustrate my point. In MQL5 there is a feature for drop down lists of enumerated values. That's a fancy way of saying that a user can select from a drop down rather than typing in a value for input settings. Its new and there simply no way to do this in MQL4. There are similar examples, but I am not going to detail any others.

Hi 7bit,

Good day,

it is good you are here. I believe I sent you a PM a while ago, and got no reply . I thought you are away to rest or busy with something.

Ok, that example I gave was just to illustrate the idea, not much. what I meant was, for example, how to reverse some good functions like "enum","IntegerToString","AccountInfoInteger" ...etc, to mql4. you want to say impossible, I guess it is not. There are many ways we can manage finding a way to resolve such complicated things. Instead of the conversion, we can use either Dll file to make such function useful through the windows system by namepiping or through creating a library in the MT4 and then call it normally as we do to other functions. Initially, the idea is logical somehow for me, and I think I just need to find more sources to help this project to success.

There is no harm in trying such thing

Thanks for your opinion.

Best wishes,

SF

Hi CM,

Good day,

well, let me ask you something, why not? why can't we?

There are a lot of languages that can help make this work. In the past, we didn't have an idea that Namepiping can be used to connect MT4 with other programms, but now we do. And there are many examples you can think of.

The only thing now is, how do we do that?? Everything start as a mystery, but once we find a solution, there is no mystery any longer.

Thanks for your opinion and sharing your thoughts.

Best wishes,

SF

Hello everyone, you can convert this EA in mql4 ? thanks.