private static IEnumerable <Tuple <string, DeviceHeritage> > GetKeyboardBasicData()
{
var interfaceGuid = new Guid(GuidInterfaceKeyboard);
using (var deviceInfoSet = new DeviceInfoSet(interfaceGuid, Wrapper.GetDeviceInfoSetFlags.Present | Wrapper.GetDeviceInfoSetFlags.DeviceInterface))
{
foreach (var interfaceData in EnumerateDeviceInterfaces(deviceInfoSet, interfaceGuid))
{
var deviceFileInstancePath = GetDeviceFileInstancePath(deviceInfoSet, interfaceData.Item2);
var deviceData = GetDeviceInfoData(deviceInfoSet, interfaceData.Item1);
var deviceInstancePath = deviceData.Item1
? GetPropertyString(deviceInfoSet, deviceData.Item2, Wrapper.DevPropKey.DEVPKEY_Device_InstanceId)
: string.Empty;
var parentInstancePath = deviceData.Item1
? GetPropertyString(deviceInfoSet, deviceData.Item2, Wrapper.DevPropKey.DEVPKEY_Device_Parent)
: string.Empty;
var grandParentInstancePath = deviceData.Item1
? GetGrandParent(parentInstancePath)
: string.Empty;
var deviceHeritage = new DeviceHeritage
{
DeviceId = deviceInstancePath,
ParentDeviceId = parentInstancePath,
GrandParentDeviceId = grandParentInstancePath
};
yield return(new Tuple <string, DeviceHeritage>(deviceFileInstancePath, deviceHeritage));
}
}
}
private static string TryParseSerialNumber(DeviceHeritage deviceHeritage)
{
var result = string.Empty;
var regexPattern = new Regex(@".*vid_[a-fA-F0-9]{4}&pid_[a-fA-F0-9]{4}.{0,6}\\(\w{4,})", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant, TimeSpan.FromSeconds(1));
foreach (var id in deviceHeritage)
{
var regexMatch = regexPattern.Match(id);
if (!regexMatch.Success)
{
continue;
}
result = regexMatch.Groups[1].Value; // first regex contains whole id so we pick the second one.
break;
}
return(result);
}