Using C# delegates to call C++ functions and get a string back

C# delegate stuff:

public delegate void MyFuncDelegate(string sIn, StringBuilder sOut); public event MyFuncDelegate MyFuncEvent;

C++ prototype:

static void MyFunc(LPCTSTR sIn, LPTSTR sOut);

Tie them together with:

public void RegisterDelegateMyFunc(IntPtr ptrCallback) { MyFuncDelegate d = Marshal.GetDelegateForFunctionPointer(ptrCallback,typeof(MyFuncDelegate)) as MyFuncDelegate; if (d != null) { MyFuncEvent += d; } }