MT4 Issues | Forex Factory

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MT4 Issues

  • #1
  • First Post: Jul 13, 2017 11:28pm Jul 13, 2017 11:28pm
Hi All

Ive been trading for about 3 years now, but have recently come upon a problem with MT4, which I'm hoping some one can help me with. I spend time drawing S&R lines on my chart in 4 hr time frame, but when I change time frame to say 15mins, the S & R lines disappear. WTF. This is a new phenomenon for me, and it never used to happen. Is there some way (I'm sure there is) that I can get my horizontal lines to stay on my chart, when switching TFs.

Anyway, hopefully someone can assist me.

If you have an issue with MT4, post it here and someone (maybe even me) may be able to assist you

Cheers
  • #2
  • Jul 14, 2017 12:48am Jul 14, 2017 12:48am
2 possible reasons:

1/ Trendline properties box > Visualization tab ... one or more timeframes are unselected ... so when you switch TF, the TD isn't visible. Only visible on the selected TFs

2/ You have an indicator or EA on the chart which use the ObjectsDeleteAll() function in its code. Hence all objects on chart are delete if this function isn't used in correct way.
MT4/MT5 EAs/Indicators/Alerts coder
  • #3
  • Jul 14, 2017 2:53am Jul 14, 2017 2:53am
Thanks FerruFx.

Probably the 2nd option as I checked the Visualization tab was ticked "show on all time frames" Other than Moving averages, the only indicator I use is a Currency Strength meter - I'm thinking the issue lies within this. As I'm no good at coding, I guess I'll have to live with the issue

Thanks for your help anyway
  • #4
  • Jul 16, 2017 10:23pm Jul 16, 2017 10:23pm
Hi,
I am new in Forex Factory, and can not find any thread related to compiling the MQH library file to EX4. As i can not create a new thread, and i found the subject of this thread is related to MT4, so i try to ask it here.

As we know that we can call the result of an indicator using iCustom, or we can use library like MQH file to get a signal , and add it to our calculation on other indicator. If we use iCustom, the bad thing that it is not as flexible as using MQH library file, but the good thing is that : our logic is hide inside the compiled EX4.
I want to know .. is it possible to compile the MQH file , so we can have a flexible call to the function/signal , and the logic is hide (not in source code, but in compiled form).

Questions :
*) Is it possible ?
*) If yes, how to do that ?
*) Do we still can call it by using the #include <somefilename.mqh> , for example ?

Thanks in advance. Tom
  • #5
  • Jul 16, 2017 11:13pm Jul 16, 2017 11:13pm
Quoting thomasberg
Hi, I am new in Forex Factory, and can not find any thread related to compiling the MQH library file to EX4. As i can not create a new thread, and i found the subject of this thread is related to MT4, so i try to ask it here. As we know that we can call the result of an indicator using iCustom, or we can use library like MQH file to get a signal , and add it to our calculation on other indicator. If we use iCustom, the bad thing that it is not as flexible as using MQH library file, but the good thing is that : our logic is hide inside the compiled...
Create your function(s) in .mq4 format and save it in the Libraries folder. You will be able to import it.

Inserted Code
#import "XXXXXXX.ex4"
...
...
...
#import
MT4/MT5 EAs/Indicators/Alerts coder
  • #6
  • Jul 17, 2017 10:05pm Jul 17, 2017 10:05pm
Quoting FerruFx
{quote} Create your function(s) in .mq4 format and save it in the Libraries folder. You will be able to import it. #import "XXXXXXX.ex4" ... ... ... #import
Hi FerruFx,
so easy like that ? Wow, thank you very much Ferru ... you safe me, i spent so much time to solve this ... and did not think about using #import instead of #include, and just create functions and put there, and it will be become compiled one and the logic is hidden ... Great, thanks again ...
Best Regards,
Tom
  • #7
  • Jul 17, 2017 10:21pm Jul 17, 2017 10:21pm
Quoting thomasberg
{quote} Hi FerruFx, so easy like that ? Wow, thank you very much Ferru ... you safe me, i spent so much time to solve this ... and did not think about using #import instead of #include, and just create functions and put there, and it will be become compiled one and the logic is hidden ... Great, thanks again ... Best Regards, Tom
Keep in mind that if you provide the main file to somebody, you have to also provide the .ex4 library.
MT4/MT5 EAs/Indicators/Alerts coder
  • #8
  • Jul 18, 2017 5:47am Jul 18, 2017 5:47am
how good is FerruFx
  • #9
  • Jul 18, 2017 6:53am Jul 18, 2017 6:53am
Quoting TrendDiscipl
how good is FerruFx
MT4/MT5 EAs/Indicators/Alerts coder
  • #10
  • Jul 18, 2017 7:12am Jul 18, 2017 7:12am
Quoting FerruFx
{quote} Keep in mind that if you provide the main file to somebody, you have to also provide the .ex4 library.
... I never really saw where the compiled library fit in unless you're making a private lib to sell, am I right? Other than that you're either sharing source with collaborators or just providing/selling the ex* file. Am I missing something?
  • #11
  • Jul 18, 2017 7:18am Jul 18, 2017 7:18am
Quoting Nicholishen
{quote} ... I never really saw where the compiled library fit in unless you're making a private lib to sell, am I right? Other than that you're either sharing source with collaborators or just providing/selling the ex* file. Am I missing something?
I was just answering a question here. I am not using this way in my codings.
MT4/MT5 EAs/Indicators/Alerts coder
  • #12
  • Jul 18, 2017 7:43am Jul 18, 2017 7:43am
Quoting Nicholishen
{quote} ... I never really saw where the compiled library fit in unless you're making a private lib to sell, am I right? Other than that you're either sharing source with collaborators or just providing/selling the ex* file. Am I missing something?
If you have a library with a few files its better have a compiled library and his header file. This avoid have include all files and dependency problems, Its I will do with PINs protocol I made for my new EA
Try don't lose pants never...
  • #13
  • Jul 18, 2017 7:45am Jul 18, 2017 7:45am
Quoting braintheboss
{quote} If you have a library with a few files its better have a compiled library and his header file. This avoid have include all files and dependency problems, Its I will do with PINs protocol I made for my new EA
Why is that better than mqh files?
  • #14
  • Jul 18, 2017 7:48am Jul 18, 2017 7:48am
Quoting Nicholishen
{quote} Why is that better than mqh files?
I think I explained clear in last message I have more 40 files involved for support PINs. Do you think is practical put 40 files for give a functionality?
Try don't lose pants never...
  • #15
  • Jul 18, 2017 8:03am Jul 18, 2017 8:03am
Quoting FerruFx
{quote} Keep in mind that if you provide the main file to somebody, you have to also provide the .ex4 library.
Hi Ferru, it is only for private use actually. I just thought before, that if i want to use #import to call library file, then i need to create a DLL and put it in library folder . Creating a DLL file may be using C++ or C# will time consume for a beginner like me, i need much time to learn both language first ...
My concern is to make it flexible and keep the code in compiled form (because calling some functions using iCustom is not flexible, especially the functions are used almost in every of my code). So, your solution is the best for me now ... Thanks for that
  • #16
  • Jul 18, 2017 8:19am Jul 18, 2017 8:19am
Quoting thomasberg
{quote} ... if i want to use #import to call library file, then i need to create a DLL and put it in library folder .
Not necessary a DLL. You can code in .mq4 format and #import the .ex4 compiled file.
MT4/MT5 EAs/Indicators/Alerts coder
  • #17
  • Jul 18, 2017 10:31am Jul 18, 2017 10:31am
Quoting FerruFx
{quote} Not necessary a DLL. You can code in .mq4 format and #import the .ex4 compiled file.
Aside from hiding code in a dll/ex4 to import/re-use, is there any cpu/ram advantage into using libraries?

I am just looking for ways to optimize my indi as I exchausted most things I could do in a single mql4 file, that's why I am asking.
  • #18
  • Jul 18, 2017 10:46am Jul 18, 2017 10:46am
Quoting sakisf
{quote} Aside from hiding code in a dll/ex4 to import/re-use, is there any cpu/ram advantage into using libraries? I am just looking for ways to optimize my indi as I exchausted most things I could do in a single mql4 file, that's why I am asking.
To be frank, I don't know.
MT4/MT5 EAs/Indicators/Alerts coder
  • #19
  • Jul 18, 2017 10:53am Jul 18, 2017 10:53am
Quoting sakisf
{quote} Aside from hiding code in a dll/ex4 to import/re-use, is there any cpu/ram advantage into using libraries? I am just looking for ways to optimize my indi as I exchausted most things I could do in a single mql4 file, that's why I am asking.
Not difference. If you have performance problems optimize heavy methods. If its not enough then you will pass to MT5 because MT4 is very slow comparing with MT5 compiled code. Really MT5 code is same than MT4 code when its compiled. The difference is MT5 have an optimizer ( like C/C++ -O3 option ) and there is why speed up x10+ the execution.

PS: A compiled code of 600ms can need more 6 seconds for be optimized...
Try don't lose pants never...
  • #20
  • Jul 18, 2017 11:23am Jul 18, 2017 11:23am
Quoting braintheboss
{quote} Not difference. If you have performance problems optimize heavy methods. If its not enough then you will pass to MT5 because MT4 is very slow comparing with MT5 compiled code. Really MT5 code is same than MT4 code when its compiled. The difference is MT5 have an optimizer ( like C/C++ -O3 option ) and there is why speed up x10+ the execution. PS: A compiled code of 600ms can need more 6 seconds for be optimized...
Thanks, I am planning the transition soon enough. Actually I started learning c++ to begin moving my calcs to an external dll for speed but this would take ages. Maybe I should go to mql5 directly, as my current indi is not far from mql5 code atm. There are way too many calculations made in real time, some of them complex, so multithreading would help.
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