The default widget is the widget that's activated when the user
presses Enter in a dialog (for example). This function sets or
unsets the default widget for a GtkWindow about. When setting
(rather than unsetting) the default widget it's generally easier to
call gtk_widget_grab_focus() on the widget. Before making a widget
the default widget, you must set the GTK_CAN_DEFAULT flag on the
widget you'd like to make the default using GTK_WIDGET_SET_FLAGS().
The default widget is the widget that's activated when the user presses Enter in a dialog (for example). This function sets or unsets the default widget for a GtkWindow about. When setting (rather than unsetting) the default widget it's generally easier to call gtk_widget_grab_focus() on the widget. Before making a widget the default widget, you must set the GTK_CAN_DEFAULT flag on the widget you'd like to make the default using GTK_WIDGET_SET_FLAGS().