I try to bind a simple c++ dll shown in http://msdn.microsoft.com/en-us/library/ms235636.aspx in my c# console app, but I get a EntryPointNotFoundException for Add within dll at runtime. My test class is
namespace BindingCppDllExample
{
public class BindingDllClass
{
[DllImport("MathFuncsDll.dll")]
public static extern double Add(double a, double b);
}
public class Program
{
public static void Main(string[] args)
{
double a = 2.3;
double b = 3.8;
double c = BindingDllClass.Add(a, b);
Console.WriteLine(string.Format("{0} + {1} = {2}", a, b, c));
}
}
}
What is not correct?
You could try declaring the functions outside of a class and also exporting them with
extern "C"
:Header:
Implementation:
Calling code: