private static PnpObject GetHalDevice(params String[] properties)
{
String[] strArray = properties;
String[] strArray1 = { "{A45C254E-DF1C-4EFD-8020-67D146A850E0},10" };
IEnumerable <String> enumerable = strArray.Concat(strArray1);
try
{
PnpObjectCollection pnpObjectCollection = PnpObject.FindAllAsync(PnpObjectType.Device, enumerable, "System.Devices.ContainerId:=\"{00000000-0000-0000-FFFF-FFFFFFFFFFFF}\"").GetResults();
foreach (PnpObject pnpObject in pnpObjectCollection)
{
if (pnpObject.Properties == null || !pnpObject.Properties.Any())
{
continue;
}
KeyValuePair <String, Object> keyValuePair = pnpObject.Properties.Last();
if (keyValuePair.Value == null || !keyValuePair.Value.ToString().Equals("4d36e966-e325-11ce-bfc1-08002be10318"))
{
continue;
}
return(pnpObject);
}
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Exception: " + e.Message);
return(null);
}
return(null);
}
/// <summary>
/// hdt
/// </summary>
/// <param name="properties"></param>
/// <returns></returns>
static Task <PnpObject> GetHalDevice(params string[] properties)
{
PnpObject result = null;
var actualProperties = Enumerable.Concat <string>(properties, new string[] { "{A45C254E-DF1C-4EFD-8020-67D146A850E0},10" });
PnpObjectCollection objects = WindowsRuntimeSystemExtensions.GetAwaiter <PnpObjectCollection>(PnpObject.FindAllAsync(PnpObjectType.Device, actualProperties, "System.Devices.ContainerId:=\"{00000000-0000-0000-FFFF-FFFFFFFFFFFF}\"")).GetResult();
foreach (PnpObject obj in objects)
{
KeyValuePair <string, object> pair = Enumerable.Last <KeyValuePair <string, object> >((IEnumerable <KeyValuePair <string, object> >)obj.Properties);
if ((pair.Value != null) && pair.Value.ToString().Equals("4d36e966-e325-11ce-bfc1-08002be10318"))
{
result = obj;
break;
}
}
return(Task.FromResult <PnpObject>(result));
}
private static async Task <string> GetOsVersionUsingPnpObject()
{
string[] requestedProperties = new string[]
{
DeviceDriverVersionKey,
DeviceDriverProviderKey
};
PnpObjectCollection pnpObjects = await PnpObject.FindAllAsync(PnpObjectType.Device, requestedProperties, RootContainerQuery);
string guessedVersion = pnpObjects.Select(item => new ProviderVersionPair
{
Provider = (string)GetValueOrDefault(item.Properties, DeviceDriverProviderKey),
Version = (string)GetValueOrDefault(item.Properties, DeviceDriverVersionKey)
})
.Where(item => string.IsNullOrEmpty(item.Version) == false)
.Where(item => string.Compare(item.Provider, "Microsoft", StringComparison.Ordinal) == 0)
.GroupBy(item => item.Version)
.OrderByDescending(item => item.Count())
.Select(item => item.Key)
.First();
return(guessedVersion);
}
