Calling C function in .net.

James Smith 2794 16 Apr 2011

Hello everyone,

Can anyone tell me that hot to call c++ function in .net.

Ask by James Smith

Updated 16 Apr 2011

1 Answers

Anonymous User 16 Apr 2011

Well I think that should not be to dificult. You can use DllImport statement to call any c++ dll library or function.

For example you have following c++ function in a dll.

int Sum(int x, int y)
{
       return x+y;
}

And you want to use this function in c# application.
So you can useit like this.

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices; //For "DllImport"
namespace MyCSharp
{
      class Program
      {
      [DllImport("MathFuncsDll.dll", CharSet = CharSet.Auto)]
      public static extern Int32 Sum(Int32 a, Int32 b);
            static void Main()
            {
                  Console.WriteLine(Sum(3, 4));
            }
      }
}

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