WPF Single Instance Best Practices

Question

This is the code I implemented so far to create a single instance WPF application:

#region Using Directives
using System;
using System.Globalization;
using S         


        

Answer 1

My Solution for a .Net Core 3 Wpf Single Instance Application:

[STAThread]
public static void Main()
{
    StartSingleInstanceApplication();
}

public static void StartSingleInstanceApplication()
    where T : RichApplication
{
    DebuggerOutput.GetInstance();

    Assembly assembly = typeof(T).Assembly;
    string mutexName = $"SingleInstanceApplication/{assembly.GetName().Name}/{assembly.GetType().GUID}";

    Mutex mutex = new Mutex(true, mutexName, out bool mutexCreated);

    if (!mutexCreated)
    {
        mutex = null;

        var client = new NamedPipeClientStream(mutexName);
        client.Connect();

        using (StreamWriter writer = new StreamWriter(client))
            writer.Write(string.Join("\t", Environment.GetCommandLineArgs()));

        return;
    }
    else
    {
        T application = Activator.CreateInstance();

        application.Exit += (object sender, ExitEventArgs e) =>
        {
            mutex.ReleaseMutex();
            mutex.Close();
            mutex = null;
        };

        Task.Factory.StartNew(() =>
        {
            while (mutex != null)
            {
                using (var server = new NamedPipeServerStream(mutexName))
                {
                    server.WaitForConnection();

                    using (StreamReader reader = new StreamReader(server))
                    {
                        string[] args = reader.ReadToEnd().Split("\t", StringSplitOptions.RemoveEmptyEntries).ToArray();
                        UIDispatcher.GetInstance().Invoke(() => application.ExecuteCommandLineArgs(args));
                    }
                }
            }
        }, TaskCreationOptions.LongRunning);

        typeof(T).GetMethod("InitializeComponent").Invoke(application, new object[] { });
        application.Run();
    }
}