C# Get Default Browser + URL - Printable Version

Code
class browserHandler

    {

        genericHandler gHandler = new genericHandler();



        public string getBrowser()

        {

            const string userChoice = @"Software\Microsoft\Windows\Shell\Associations\UrlAssociations\http\UserChoice";

            string progId;

            

            using (RegistryKey userChoiceKey = Registry.CurrentUser.OpenSubKey(userChoice))

            {

                if (userChoiceKey == null)

                {

                    return "unsupported";

                }

                object progIdValue = userChoiceKey.GetValue("Progid");

                if (progIdValue == null)

                {

                    return "unsupported";

                }

                progId = progIdValue.ToString();

                switch (progId)

                {

                    case "IE.HTTP":

                        return "iexplore";

                    case "FirefoxURL":

                        return "firefox";

                    case "ChromeHTML":

                        return "chrome";

                    default:

                        return "unsupported";

                }

            }

        }



        public string getFFURL()

        {

            DdeClient dde = new DdeClient("Firefox", "WWW_GetWindowInfo");

            dde.Connect();

            string url = dde.Request("URL", int.MaxValue);

            dde.Disconnect();

            return url;

        }



        public string getIEURL()

        {

            genericHandler gHandler = new genericHandler();

            string fileName;



            foreach (InternetExplorer ie in new ShellWindows())

            {

                fileName = Path.GetFileNameWithoutExtension(ie.FullName).ToLower();

                if ((gHandler.isInteresting(ie.LocationURL.ToString()) && (fileName.Equals("iexplore"))))

                { return ie.LocationURL.ToString(); }

                else { continue; }

            }

            

            return null;

        }



        public string getChromeURL()

        {

            Process[] procsChrome = Process.GetProcessesByName("chrome");

            foreach (Process chrome in procsChrome)

            {

                // the chrome process must have a window

                if (chrome.MainWindowHandle == IntPtr.Zero)

                {

                    continue;

                }



                // find the automation element

                AutomationElement elm = AutomationElement.FromHandle(chrome.MainWindowHandle);

                AutomationElement elmUrlBar = elm.FindFirst(TreeScope.Descendants,

                new PropertyCondition(AutomationElement.NameProperty, "Address and search bar"));



                // if it can be found, get the value from the URL bar

                if (elmUrlBar != null)

                {

                    AutomationPattern[] patterns = elmUrlBar.GetSupportedPatterns();

                    if (patterns.Length > 0)

                    {

                        ValuePattern val = (ValuePattern)elmUrlBar.GetCurrentPattern(patterns[0]);

                        if (!val.Current.Value.Contains("https"))

                        {

                            string link = "http://" + val.Current.Value;

                           // gHandler.logMsg("Found [" + link + "]");

                            return link;

                        }

                        else

                        {

                            gHandler.logMsg("Found [" + val.Current.Value + "]");

                            return val.Current.Value;

                        }

                    }

                    else { return "error"; }                 

                }

            }



            return "error";

        }

    }