Discovers the widget that should be focused as the default widget for the #PanelWidget.
For example, if you want to focus a text editor by default, you might return the #GtkTextView inside your widgetry.
the default widget to focus within the #PanelWidget.
Discovers the widget that should be focused as the default widget for the #PanelWidget.
For example, if you want to focus a text editor by default, you might return the #GtkTextView inside your widgetry.