Write into DLL

[baza12]

I have write into dll

my dll code is :

_DLLAPI void    __stdcall minus( double aaa ,char* g)
  {
    std::ofstream fs(g); 
    fs<<aaa;
    fs.close();
 
  }
 

and my mql5 code is :

#import "MQL5DLLSamples.dll"
void minus(double aaa,string g);
#import
void OnStart()
  {
 minus(96,"C:\\m\\j.txt");
  }
//+------------------------------------------------------------------+

 
why dont work ?

[Alain Verleyen]

baza12:

I have write into dll

my dll code is :

and my mql5 code is :

 
why dont work ?

Please read this article : How to Exchange Data: A DLL for MQL5 in 10 Minutes - MQL5 Articles

The issue is certainly with string versus char. Feel free to ask if it doesn't help you. You can then post error message you got.

[baza12]

Yes that is the question .last version of MT4 was, now apdayta can pick up how to replace char * in c ++ in string in mql5

[Alain Verleyen]

baza12:
Yes that is the question .last version of MT4 was, now apdayta can pick up how to replace char * in c ++ in string in mql5

Sorry I don't understand your post ?

[baza12]

this code run in mql4.

in mql5 dont run.

why i replace char* to string