Designing the GUI using Glade is straightforward. Just start the Glade program and you will see this interface (from macOS, or something similar if using another OS):
Figure 5
Let's now explore the Glade interface. There are four main buttons that we will be using primarily in Glade; Toplevels, Containers, Control, and Display. The preceding screenshot shows that GtkWindow is listed in Toplevels, which serves as the basic unit for construction. Let's click on GtkWindow and see the resulting action:
Figure 6
Now ...
