Any update work is needed for the MT4 version 600+?

[kuyzhou]

Hi Femtotrader,

I have been following the instruction step by step to make a test in my local Win7 64bit machine. Using the send.bat & receive.bat scripts proved the RabbitMQ runs well. However, when I was launching the EA rabbit4mt4_ticks_emit, I got the error below in the console:

rabbit4mt4_ticks_emit EURUSD, M1: OnInit
Unhandled exception 0xE0434352
rabbit4mt4_ticks_emit EURUSD, M1: not initialized
rabbit4mt4_ticks_emit EURUSD, M1: uninit reason 8

May I know if any additional steps we have to make for using with MT4 in version 600+?

[femtotrader]

it shouldn't because I was ever using a MT4 build>=600 when I create this project. But I haven't use this project for some months.

[femtotrader]

Try to compile DLL

[kuyzhou]

In fact, the project Rabbit4mt4 would be built successfully.

[kuyzhou]

Here is the size of each related files copied into the MQL4/Libraries folder FYR:

        11,264 Rabbit4mt4.dll
         2,171 Rabbit4mt4.exp
         3,852 Rabbit4mt4.lib
        28,160 Rabbit4mt4.pdb
        23,168 Rabbit4mt4.vshost.exe
           490 Rabbit4mt4.vshost.exe.manifest
      249,856 RabbitMQ.Client.dll
       329,760 RabbitMQ.Client.xml

And btw, I've also checked my current MT4 version is up to 840.

[femtotrader]

I haven't test it soon with a recent MT4 build.

Please try to fix (that's open source)

You may be also interested by this project from an other developer https://github.com/OpenTrading/OTMql4AMQP

[mj56g]

Hi!

I have an issue too. I managed to compile the dll, but when I would like to try it out using rabbit4mt4_ticks_emit EA, it doesn't work.

I get these errors on initialization:

Cannot find 'InitializeMQConnection' in 'Rabbit4mt4.dll'
unresolved import function call
rabbit4mt4_ticks_emit EURUSD,M1: not initialized
rabbit4mt4_ticks_emit EURUSD,M1: uninit reason 8

I'm using build 840. Obviously the dll is found, but I cannot understand why it can't find the functions inside. I then commented out the line with InitializeMQConnection() in the ea and then it throws the same error with DispMQVersion() which is the next function in line, so I guess all the functions are somehow affected.

Thank you for any suggestions.

[femtotrader]

Hi,

I'm really sorry I lose interest in this project (for now).

DLL was made using "unmanaged exports"

I was using these articles to create this project http://vb6-to-csharp.blogspot.com/2011/08/write-csharp-c-dll-for-metatrader.html http://vb6-to-csharp.blogspot.com/2012/04/code-to-export-c-dll-to-metatrader.html https://sites.google.com/site/marketformula/vb6-to-c/vb6-to-c-downloads/code-to-export-c-dll-to-metatrader https://www.mql5.com/en/articles/249

You might have a look also at this article http://vb6-to-csharp.blogspot.com/2014/05/code-to-export-c-dll-to-metatrader.html

You need this Nuget package https://www.nuget.org/packages/UnmanagedExports

I suggest to try to create yourself a very basic DLL which could expose for example an add function which could add 2 integers and return result or a function which could display a message box and see if your DLL is working fine with your MT4 installation

You might also add logger http://www.codeproject.com/Articles/80175/Really-Simple-Log-Writer it could help

An other approach could be to avoid DLL and use named pipes https://www.mql5.com/en/articles/115 https://www.mql5.com/en/articles/503 https://www.mql5.com/en/code/10865

or have a look at projects like https://github.com/OpenTrading/OTMql4AMQP https://github.com/OpenTrading/OTMql4Zmq https://github.com/OpenTrading/OTMql4Py https://github.com/OpenTrading/OTMql4Lib

Kind regards