Here is my C++ code

#include "CppMatlabWrapper.h"
#include <exception>
#include <string>
using namespace std;

//Method to validate the data
extern "C" __declspec(dllexport) validationResult __stdcall
_validateData(double dataToMat[], int time)
{
  validationResult res;
  res.signalStatusArray[0]=1;
  res.signalStatusArray[1]=2;
  res.signalStatusArray[2]=3;
   res.signalStatusArray[3]=4;
  res.micDataValid = (int)(dataToMat[0]*100);
  res.rWaveValid = (int)(dataToMat[1]*100);
  return res;
}

------------
Here is the header file CppMatlabWrapper.h
//Structure to store the result of the validation operation
struct validationResult
{
    int micDataValid; //validity of the microphone data
    int rWaveValid; //validity of the r Wave
    int signalStatusArray[4]; //validity of each of the channel data
};
extern "C" __declspec(dllexport) validationResult __stdcall
_validateData(double dataToMat[], int time);

This C++ code compiled gives me the library "CppMatlabWrapper.dll"
--------------------------------------------------------------------

Here is the C# code to access this library
using System;
using System.Runtime.InteropServices;

namespace MatlabWrapper
{
   class Program
   {

       //Structure to receive the result of the validation operation
       public struct validationResult
       {
           public int micDataValid; //validity of the microphone data
           public int rWaveValid; //validity of the r Wave
           public fixed int signalStatusArray[4];
       };

       [DllImport("CppMatlabWrapper.dll")]
       static extern validationResult _validateData(double[] data,
int time);

       static void Main(string[] args)
       {
            //code for creating a double array called dataToMat of
some size
            //
            validationResult res;
            res = _validateData(dataToMat, 2);
       }
   }
}

THANKS
________

On Apr 18, 5:08 pm, "Willy Denoyette [MVP]"
<willy.denoye...@telenet.be> wrote:

In that case what should my C# definition look like for the
corresponding C++ definition mentioned below?

C++ struct
struct validationResult
{
       int micDataValid; //validity of the microphone data
       int rWaveValid; //validity of the r Wave
       int signalStatusArray[4]; //validity of each of the channel
data
};

Thanks