Managed C++/CLI

<code>
BSTR UnmanagedClass::UnmanagedMethod( BSTR x, VARIANT y, BSTR z )
{
...
}
</code>

<code>
String^ ManagedClass::ManagedMethod( String^ x, String^ y, String^ z )
{
   CComBSTR bstrX, bstrZ;
   bstrX.Attach( ( BSTR )( void * )Marshal::StringToBSTR( x ) );
   bstrZ.Attach( ( BSTR )( void * )Marshal::StringToBSTR( z ) );

   ????

   return gcnew String( unmanaged->UnmanagedMethod( bstrX, ???, bstrZ ) );
}
</code>

<code>
string x="some value", y="another value", z="a third value";
managed.ManagedMethod( x, y, z );
</code>

<br />
extern "C" <br />
{  <br />
  __declspec (dllimport) int TextExtern(int sizel);<br />
  <br />
}

namespace Foo<br />
{<br />
  // first attempt<br />
  public ref class RC<br />
  {<br />
    public:<br />
      static const System::Int16 value = 0;<br />
  };<br />
<br />
  // second attempt<br />
  public enum class EC : System::Int16<br />
  {<br />
    value = 0;<br />
  };<br />
}

static class Program {<br />
  static void Main()<br />
  {<br />
    Int16 sh = Foo.EC.value;  // error CS0266; must use explicit type cast<br />
    switch(sh)<br />
    {<br />
      case Foo.RC.value:      // error CS0150; the value is not constant<br />
        MessageBox.Show("Information");<br />
        break;<br />
    }<br />
    return 0;<br />
  }<br />