C / C++ / MFC

void CMswayView::OnButton2() 
{
	BSTR bstrDesc;
	// TODO: Add your control notification handler code here
	      try
      {
      CoInitialize(NULL);
      short st = 2;
       short st1;
      // Declare the Interface Pointer for your Visual Basic object. Here,
      // _Class1Ptr is the Smart pointer wrapper class representing the
      // default interface of the Visual Basic object.

      _Class1Ptr ptr;
      // Create an instance of your Visual Basic object, here
      // __uuidof(Class1) gets the CLSID of your Visual Basic object.

       ptr.CreateInstance(__uuidof(Class1));
        ptr->MakeDB();
      }
      catch(_com_error &e)
      {
       bstrDesc = e.Description();

      }
      CoUninitialize();
}