Hi All,


>From my C# code, I am calling a native method which returns a PWSTR. I

receive the return value as a IntPtr and then marshal it to a string.
I notice that I get the correct return value if I use
Marshal.PtrToStringAnsi but not if I use PtrToStringAuto or
PtrToStringUni. How do I marshal the return value if the return value
is actually a unicode string?

  [DllImport("My.dll", SetLastError = true, CharSet =
CharSet.Unicode)]
  [return: MarshalAs(UnmanagedType.SysUInt)]
  public static extern IntPtr GetUnicodeString(
            [In] uint index);

Using it as

IntPtr myStr =GetUnicodeString(index);
String myString = Marshal.PtrToStringAnsi(myStr); // Works
String myString = Marshal.PtrToStringAuto (myStr); // Does not Work
String myString = Marshal.PtrToStringUni(myStr); // Does not Work

Does any one know how to return unicode strings?

Thanks,
RA