IntPtr domainPtr = Utility.StringToPtr (domain);
handle = avahi_domain_browser_new (client.Handle, iface, (int) proto, domainPtr, (int) btype,
IntPtr domainPtr = Utility.StringToPtr (domain);
handle = avahi_domain_browser_new (client.Handle, iface, (int) proto, domainPtr, (int) btype,