UPnP Control Point API in WinRT

Question

Is there a UPNP Control Point API in WinRT?  I'm looking for something similar to the API defined here: http://msdn.microsoft.com/en-us/library/windows/desktop/aa381122(v=vs.85).aspx
I'm aware of the WinRT APIs in the Windows.Devices.Enumeration and Windows.Devices.Enumeration.Pnp namespaces.  But I can't seem to find a way to invoke UPnP
actions or even discover the devices network name through the DeviceInformation or PnpObject APIs.

Answer 1

There is no UPnP APIs in WinRT. If your UPnP device supports PNP-X then you can discover and pair your device using metro device settings UI. Once the device is paired, you can enumerate your device and
retrieve the device properties such as ServiceControlUrl, ServiceDescriptionUrl, ServiceEventSubscriptionUrl and IP address. Check the sample code snippet below. Once you get these properties you could use SOAP messages to interact with the device. (Note,
there are DLNA APIs
in WinRT, and we recommend using DLAN APIs to interact with DLNA devices such as DMRs and DMSs.)
Regarding UDP multicast port 1900, your application should be able to open it for shared access.
// C# sample code:
// Use SHA1 (version 5 GUID using RFC 4122 -
http://tools.ietf.org/html/rfc4122#section-4.3) to generate Device Interface Class UUID from UPnP device service type
// For Example:
//      For sample UPnP dimmer Device Service Types: "urn:microsoft-com:service:DimmerService:1"
//      the RFC 4122 algorithm produces the class 5 GUID: "{bb66ac6e-4e59-58dc-bafa-ce6af7e50cfc}"
using Windows.Devices.Enumeration;
using Windows.Devices.Enumeration.Pnp;           
// Use the Device Interface Class UUID to get the UPnP device Interface object
// Set the AQS (Advanced Query Syntax) Filter for this query
var selector = "System.Devices.InterfaceClassGuid:=\"" + "{bb66ac6e-4e59-58dc-bafa-ce6af7e50cfc}" + "\"";
// PKEY_PNPX_ServiceDescUrl = "{656A3BB3-ECC0-43FD-8477-4AE0404A96CD},16389"
string serviceDescriptionUrlProperty = "{656A3BB3-ECC0-43FD-8477-4AE0404A96CD},16389";
// PKEY_PNPX_ServiceEventSubUrl = "{656A3BB3-ECC0-43FD-8477-4AE0404A96CD},16390"
string serviceEventSubscriptionUrlProperty = "{656A3BB3-ECC0-43FD-8477-4AE0404A96CD},16390";
// Create Interface properties to read from the interface object
string[] interfaceProperties = { "System.Devices.ServiceAddress", "System.Devices.ServiceId", "System.Devices.DeviceInstanceId", serviceDescriptionUrlProperty, serviceEventSubscriptionUrlProperty };
var interfaceObject = await DeviceInformation.FindAllAsync(selector, interfaceProperties);
// Service Control Url
string[] serviceControlUrlArray = (string[])interfaceObject[0].Properties["System.Devices.ServiceAddress"];
string serviceControlUrl = serviceControlUrlArray[0];
// Service Description Url
var serviceDescriptionUrl = interfaceObject[0].Properties[serviceDescriptionUrlProperty];
// Service Event Subscription Url
var serviceEventSubscriptionUrl = interfaceObject[0].Properties[serviceEventSubscriptionUrlProperty];
// Service ID Property
var serviceId = interfaceObject[0].Properties["System.Devices.ServiceId"];
// Use Interface object and DeviceInstanceId to get the Device Object
// Create a Device properties
string[] deviceProperties = { "System.Devices.IpAddress"};
// Device Instance ID
string deviceInstanceId = (string)interfaceObject[0].Properties["System.Devices.DeviceInstanceId"];
var deviceObject = await PnpObject.CreateFromIdAsync(PnpObjectType.Device, deviceInstanceId, deviceProperties);
// IP Address
string[] ipAddressArray = (string[])deviceObject.Properties["System.Devices.IpAddress"];
string ipAddress = ipAddressArray[0];
OutputText.Text = "Service Control Url: " + serviceControlUrl + "\rService Description Url: " + serviceDescriptionUrl + "\rService Event Subscription Url: " + serviceEventSubscriptionUrl + "\rService ID: " + serviceId + "\rIP Address: " + ipAddress;