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/* This is the application. */
public class MyApplication : Gtk.Application {
Gtk.Label label;
/* Override the 'activate' signal of GLib.Application. */
protected override void activate () {
var window = new Gtk.ApplicationWindow (this);
window.title = "SpinButton Example";
window.set_default_size (210, 70);
window.set_border_width (5);
var spinbutton = new Gtk.SpinButton.with_range (0, 100, 1);
spinbutton.set_hexpand (true);
label = new Gtk.Label ("Choose a number");
var grid = new Gtk.Grid ();
grid.attach (spinbutton, 0, 0, 1, 1);
grid.attach (label, 0, 1, 1, 1);
spinbutton.value_changed.connect (this.value_changed_cb);
window.add (grid);
window.show_all ();
}
void value_changed_cb (Gtk.SpinButton spin) {
label.set_text ("The number you selected is %.0f.".printf (spin.get_value()));
}
}
/* main creates and runs the application. */
public int main (string[] args) {
return new MyApplication ().run (args);
}
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