How can I call a function of a C++ DLL that accepts a parameter of type stringstream from C#?

Question

I want to import an unmanaged C++ DLL and call a function that takes stringstream as a parameter. In C#, there is no stringstream class, so can any

Answer 1

Create an Wrapper dll in c, or c++ that exposes an friendly call to that function. It's the better way.

for example an

BOOL getString(TCHAR * myreturnString, DWORD *size);