CodeBrix.Develop.UI 1.0.202.186

CodeBrix.Develop.UI

A fully managed C# binding of the GTK 4 user-interface toolkit, the GtkSourceView source-code editing widget, and the supporting GNOME platform libraries (Gdk, Gsk, Pango, Cairo, HarfBuzz, GdkPixbuf, Graphene, Gio, GObject, and GLib) for .NET, derived from the gir.core project. CodeBrix.Develop.UI has no dependencies other than .NET (plus the native GTK 4 runtime libraries at run time), and is provided as a .NET 10 library and associated CodeBrix.Develop.UI NuGet package.

CodeBrix.Develop.UI supports applications and assemblies that target Microsoft .NET version 10.0 and later. Microsoft .NET version 10.0 is a Long-Term Supported (LTS) version of .NET, and was released on Nov 11, 2025; and will be actively supported by Microsoft until Nov 14, 2028. Please update your C#/.NET code and projects to the latest LTS version of Microsoft .NET.

CodeBrix.Develop.UI supports:

• Building GTK 4 desktop applications in C# — windows, widgets, layouts, dialogs, signals, and events
• The GtkSourceView 5 source-code editing widget — syntax highlighting, line numbers, code completion, and style schemes (the CodeBrix.Develop.UI.GtkSource namespace, inside the main assembly)
• The full GObject type system — subclassing, properties, and signals from managed code
• The supporting GNOME platform APIs that GTK 4 rests on: Gdk, Gsk, Pango, PangoCairo, Cairo, HarfBuzz, FreeType2, GdkPixbuf, Graphene, Gio, GObject, and GLib — each in its own namespace, all shipped in this one package
• Compile-time Roslyn source generators for GObject subclassing and GTK composite-template widgets, included in the package as analyzers
• Linux, Windows, and macOS, with the platform differences resolved by the binding generator

At run time your machine needs the native GTK 4 libraries installed (on Debian-based Linux: sudo apt install libgtk-4-1; they ship with most Linux desktops). Using the GtkSourceView binding additionally requires the native GtkSourceView 5 library (sudo apt install libgtksourceview-5-0).

Sample Code

A minimal GTK 4 application

using CodeBrix.Develop.UI.Gtk;
using GioFlags = CodeBrix.Develop.UI.Gio.ApplicationFlags;

var application = Application.New("com.example.hello", GioFlags.FlagsNone);
application.OnActivate += (sender, args) =>
{
    var window = ApplicationWindow.New((Application) sender);
    window.Title = "Hello from CodeBrix.Develop.UI";
    window.SetDefaultSize(400, 200);

    var button = Button.NewWithLabel("Click me");
    button.OnClicked += (_, _) => window.Close();

    window.SetChild(button);
    window.Present();
};
return application.RunWithSynchronizationContext(null);

License

The project is licensed under the MIT License. see: https://en.wikipedia.org/wiki/MIT_License