Some proxy protocols expect to be passed a hostname, which they
will resolve to an IP address themselves. Others, like SOCKS4, do
not allow this. This function will return FALSE if proxy is
implementing such a protocol. When FALSE is returned, the caller
should resolve the destination hostname first, and then pass a
GProxyAddress containing the stringified IP address to
g_proxy_connect() or g_proxy_connect_async().
Since 2.26
Some proxy protocols expect to be passed a hostname, which they will resolve to an IP address themselves. Others, like SOCKS4, do not allow this. This function will return FALSE if proxy is implementing such a protocol. When FALSE is returned, the caller should resolve the destination hostname first, and then pass a GProxyAddress containing the stringified IP address to g_proxy_connect() or g_proxy_connect_async(). Since 2.26