GSimpleProxyResolver is never the default proxy resolver, but it can be used as the base class for another proxy resolver implementation, or it can be created and used manually, such as with g_socket_client_set_proxy_resolver().
Sets our main struct and passes it to the parent class.
Get the main Gtk struct
the main Gtk struct as a void*
Sets the default proxy on resolver, to be used for any URIs that don't match ignore-hosts or a proxy set via g_simple_proxy_resolver_set_uri_proxy().
Sets the list of ignored hosts.
Adds a URI-scheme-specific proxy to resolver; URIs whose scheme matches uri_scheme (and which don't match ignore-hosts) will be proxied via proxy.
the main Gtk struct