c# SetCompatibleTextRenderingDefault must be called before the first

Question

I tried to search for this exception but i couldn't find any solution on my case

I'am using the code Below to invoke a .NET Application :

        Assembly assem = Assembly.Load(Data);
        MethodInfo method = assem.EntryPoint;           
        var o = Activator.CreateInstance(method.DeclaringType);            
        method.Invoke(o, null);

the Application that will be invoked has a Form and in the EntryPoint of the Application :

    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false); //Exception
        Application.Run(new Form1());
    }

SetCompatibleTextRenderingDefault must be called before the first IWin32Window object is created in the application.

EDIT :

        Assembly a = Assembly.Load(Data);
        MethodInfo method = a.GetType().GetMethod("Start");
        var o = Activator.CreateInstance(method.DeclaringType);            
        method.Invoke(o, null);

Answer 1

You should create a new method that skips the initialization and look with reflection for the Start method. But the Application.Start will block the current thread. If you don't want to start a new message-pump, you should try to lookup the Form class with reflection.

---

class Program
{
    static void Main(string[] args)
    {
        var path = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
        var filename = Path.Combine(path, "WindowsFormsApplication1.exe");
        var assembly = Assembly.LoadFile(filename);
        var programType = assembly.GetTypes().FirstOrDefault(c => c.Name == "Program"); // <-- if you don't know the full namespace and when it is unique.
        var method = programType.GetMethod("Start", BindingFlags.Public | BindingFlags.Static);
        method.Invoke(null, new object[] { });
    }
}

And the loading assembly:

static class Program
{
    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Start();
    }


    public static void Start()   // <-- must be marked public!
    {
        MessageBox.Show("Start");
        Application.Run(new Form1());
    }
}

This works here!