DLL and new operator

hi,

Can I dynamically create an object and return a pointer to that object to the main program from inside a function that is exported from a DLL ?

Yes.

then why wouldn't this work :

Code:

---


/* class A is an abstract class */
class A
{
   
}

class B: public A
{

}

---

in main.cpp

Code:

---

A* __declspec(dllexport)  get_A()
{
            A* a =new B();
          return a;
}

---

if I just returned a NULL, this would work ( with some other error message), but if I do it like this it will give me "Run-Time Check Failure #0- The value of ESP was not properly saved across a function call. This is usually a result of calling a function ............"