The Glade widget palette is one of the most important tools you'll be using. You can see an image of the palette in Figure 13-9. Each icon on the palette corresponds to a type of widget or widget container. To create a widget, you click its icon and then the container in which you want to place that widget.
Of course, you don't start out with anywhere to put any of the widgets. Let's change that by creating a new window. Click the top-left icon on the palette (it's called Window and it looks like a little empty window) to create a root window for your application.
The Window and Dialog widgets are top-level widgets: They have their own GUI windows and they don't need to go into a widget container. Every other widget in your application will have a Window widget or a Dialog widget as its ultimate parent.
This window starts out with the name of "windowl," but you can change this from its property sheet. You'll find that Glade selects names for each widget based on a simple incrementing number plan. The first text view widget you create is called "textviewl", the first window is "windowl", and so on. If you hover over an icon on the palette, or click to select it, Glade will tell you what kind of widget that icon represents.
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