title: Get subnet mask from GetAdapterAddresses()
body: <p>I'm using the <code>GetAdapterAddresses()</code> method to get the ip addresses of all interfaces on the system.</p>
  
  <p>I need to find the broadcast address of each interface. I can calculate this using the IP address and the subnet mask but I can't see the subnet mask in the IP_ADAPTER_ADDRESSES structure.</p>
  
  <p>Is there any way to retrieve the subnet mask using <code>GetAdapterAddresses()</code>?</p>