1. Choose the programming language
2. Choose the working system
3. Choose Library
4. Choose Dynamic Hyperlink library , it is going to seem 

Click on Subsequent

give it a reputation 

Click on Create 

look forward to the gradual laptop to create the undertaking

That is the very first thing you might even see , the explorer might be on the fitting in your setup .

It opens up with the dllMain.cpp in view :

Now , right me in case you are extra skilled however ,no matter .cpp file (as a result of we selected c++) you create contained in the undertaking might be accessible

within the DLL .

For this one let’s pack all the pieces in a single file since we s*ck at programming .  😊

So let’s create a brand new cpp file referred to as “mySimpleDLL.cpp” , you may title it no matter you need don’t fret.

1. Within the options explorerTab proper click on on the title of the undertaking
2. Go to menu merchandise “add”
3. Go to menu merchandise “New merchandise”
4. From the popup choose “C++ file” , should you cant see it click on “detailed view” backside left
5. Title your file
6. Hit “add”

1. Title it title + _EXPORTS 
2. Title it title +_API 

#pragma as soon as

#embrace "pch.h" 
#embrace <utility>
#embrace <limits.h>

#ifdef MYSIMPLEDLL_EXPORTS
#outline MYSIMPLEDLL_API __declspec(dllexport)
#else
#outline MYSIMPLEDLL_API __declspec(dllimport)
#endif

Wonderful , now let’s expose a operate !

1. extern “C” 
2. title of api as outlined
3. return kind 
4. title of operate 
5. operate parameters

extern "C" MYSIMPLEDLL_API int hard_math(int a, int b) {
        return(a+b);
}

1. click on “Construct” on the menu on high
2. click on “Construct Resolution”

For the primary check create a folder in specialists referred to as mySimpleDLL and place the mySimpleDLL.dll dll in that folder .

create a test1.mq4 file within the editor , it ought to appear like this 

Within the test1.mq4 we add this to the header to import the operate from the dll : 

#import "mySimpleDLL.dll" 
int hard_math(int a,int b);
#import

let’s have a look at if it doesn’t work.

that is the supply code :

#property model   "1.00"
#property strict
#import "mySimpleDLL.dll" 
int hard_math(int a,int b);
#import
int OnInit()
  {
  int end result=hard_math(3,5);
  Print("DLL says "+IntegerToString(end result));
  return(INIT_SUCCEEDED);
  }

void OnDeinit(const int purpose)
  {
  }

void OnTick()
  {
  }

Compile it and when attaching to the chart ensure that is checked within the EA :

Additionally :

1. Go to Instruments
2. Go to choices
3. Go to knowledgeable advisors
4. Make sure that the enable dll imports is checked

it does . Superior