title: How do I set SuppressUnmanagedCodeSecurity for callbacks?
body: <p>When using P/Invoke, adding [SuppressUnmanagedCodeSecurity] can speed calls from managed code into unmanaged code in trusted scenarios.</p>
  
  <p>Is there a way to accomplish the same thing in the reverse direction, to speed things up when I call from unmanaged code back into managed code?  Profiling shows a much higher overhead going in that direction in our application.</p>