title: Do i need to pin data when working with C# and C++/CX
body: <p>When sending data up and down the layers between C# and C++/CX, do i need to pin the data, before I was using the <code>GCHandleType.Pinned</code>, do I still need it, or not as now I have migrated to <code>C++/CX</code> ? if so how should I do it ? the same way as before ?</p>
  
  <p>Thanks !!</p>