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 Window. When setting (rather than unsetting) the default widget it’s generally easier to call grab_default on the widget. Before making a widget the default widget, you must call set_can_default on the widget you’d like to make the default.
this |
a Window |
default_widget |
widget to be the default, or null to unset the default widget for the toplevel |