Gtk4DotNet 1.2.0

Gtk4DotNet

.Net 6 bindings for GTK 4

Mostly functional approach like this:

using GtkDotNet;

using LinqTools;

return Application.Run("org.gtk.example", app =>
    Application
        .NewWindow(app)
        .SideEffect(win => win.SetTitle("Hello Gtk👍"))
        .SideEffect(win => win.SetChild(
            Grid
                .New()
                .SideEffect(g => g.Attach(
                    Button
                        .NewWithLabel("Button 1")
                        .SideEffect(btn => btn.SignalConnect("clicked", clicked))
                    , 0, 0, 1, 1))
                .SideEffect(g => g.Attach(
                    Button
                        .NewWithLabel("Button 2")
                        .SideEffect(btn => btn.SignalConnect("clicked", clicked))
                    , 1, 0, 1, 1))
                .SideEffect(g => g.Attach(
                    Button
                        .NewWithLabel("Quit")
                        .SideEffect(btn => btn.SignalConnect("clicked", () => win.Close()))
                    , 0, 1, 2, 1))
        ))
        .Show());

void clicked() => Console.WriteLine("Clicked button");    

Prerequisites

Ubuntu

• sudo apt install libgtk-4-dev

for use with WebView only:

• sudo apt install libwebkitgtk-6.0-dev

Installation of GTK Schema

    sudo install -D org.gtk.example.gschema.xml /usr/share/glib-2.0/schemas/
    sudo glib-compile-schemas /usr/share/glib-2.0/schemas/

Usage

Look at the sample programs (https://github.com/uriegel/Gtk4DotNet)

Checking if memory is being freed

To check if GObjects are being freed, just run

GObject.AddWeakRef(obj, (_, obj) => Console.WriteLine("... is being freed));

If this object is finalized, then the callback will be called.