Question

In the past, I have had experience calling WCF services or ASMX services, you just add service reference to the .svc or .asmx url and it generates the proxy for you, and then you have intellisense for calling the methods.

Is it the same for a non .net webservice?

I need to call this
http://www.earthtools.org/webservices.htm

from c# code in a winrt app, but I just dont know how

Answer 1

If you have WSDL then you can add reference to that service. but here you try to call REST service.

you need to send post request and rad the response as:

private const string BASE_URL = "http://www.earthtools.org/timezone";
private const string REQUEST_URL_FORMAT = "{0}/{1}/{2}";

public timezone GetTimeZone(double latitude, double longitude)
{
    var uriString = String.Format(REQUEST_URL_FORMAT, BASE_URL, latitude, longitude);
    var requestUri = new Uri(uriString);

    var request = WebRequest.Create(requestUri);
    using (var response = request.GetResponse())
    {
        using (var responseStream = response.GetResponseStream())
        {
            var ser = new XmlSerializer(typeof (timezone));
            var result = (timezone) ser.Deserialize(responseStream);
            return result;
        }
    }
}

example from here.