+#if wxUSE_LONGLONG_NATIVE && !wxUSE_LONGLONG_WX
+ seekParms.dwTo = (DWORD)where.GetValue();
+#else /* wxUSE_LONGLONG_WX */
+ /* no way to return it in one piece */
+ wxASSERT( where.GetHi()==0 );
+ seekParms.dwTo = (DWORD)where.GetLo();
+#endif /* wxUSE_LONGLONG_* */