Програми для обліку

using Gtk;

class Program
{
    public static void Main()
    {
        Application.Init();
        new FirstWindow();
        Application.Run();
    }

    public static void Quit()
    {
        Application.Quit();
    }
}

using Gtk;
using GtkSource;

class FirstWindow : Window
{
    public FirstWindow() : base("Test")
    {
        SetDefaultSize(600, 350);
        SetPosition(WindowPosition.Center);

        DeleteEvent += delegate { Program.Quit(); };

        VBox vBox = new VBox();
        Add(vBox);

        HBox hBox = new HBox();
        vBox.PackStart(hBox, false, false, 5);

        ScrolledWindow scroll = new ScrolledWindow() { WidthRequest = 400, HeightRequest = 300 };
        SourceView sourceView = new SourceView
        {
            ShowLineNumbers = true,
            ShowLineMarks = true
        };

        sourceView.Buffer.Language = new LanguageManager().GetLanguage("c-sharp");
        sourceView.Buffer.Text = @"
//C#

void Test()
{
    int[] a = [];
    List<string> test = [];
    Dictionary<string, int> test2 = [];

    for (int i = 0; i < 100; i++)
        if (i < 50)
            Console.WriteLine(i);
}
";
        sourceView.Margin = 3;
        scroll.Child = sourceView;

        hBox.PackStart(scroll, true, true, 5);

        ShowAll();
    }
}