public void Subscribe(RasNotificationContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
GuardMustNotBeDisposed();
lock (SyncRoot)
{
callbackHandler.Initialize();
// Connection events always needs an invalid handle.
RegisterCallback(INVALID_HANDLE_VALUE, context.OnConnectedCallback, RASCN.Connection);
var handle = DetermineHandleForSubscribe(context);
RegisterCallback(handle, context.OnDisconnectedCallback, RASCN.Disconnection);
}
}
private IntPtr DetermineHandleForSubscribe(RasNotificationContext context)
{
return(context.Connection?.Handle ?? INVALID_HANDLE_VALUE);
}
