MT4 and Visual Basic dll call

[[Deleted]]

Hi all,
Anyone using Visual basic dll for interfacing to MT4? How to call it?
Am getting frustated, or is it have to be C++ dll could only run in MT expert / script?
please advise...

Thanks in advance.

vb code (cFunction.cls) -> cFunction.dll

Public Function MergeChar(sFirstChar As String, sSecondChar As String) As String
    MergeChar = sFirstChar & sSecondChar
End Function

mt4 code

#property copyright "Copyright © 2006, MetaQuotes Software Corp."
#property link      "https://www.metaquotes.net/"
 
#import "PrjFunctionDll.dll"
   string MergeChar(string sFirstChar,string sSecondChar);
#import
 
//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {
//----
  string a;
  string b;
  string c;
   a="one";
   b="two";
   c=MergeChar(a,b);
   Alert(a,":",b,":",c,"working");
   
//----
   return(0);
  }

[Ahmed Soliman]

I tried visual basic to make a MT compatible DLL but it failed!
I think the only language the MT support is c++.


You can download my dll(s) from:

Forex-tsd .com
metatrader.info

[Renat Fatkhullin]

All DLL functions must be cdecl