Creates a new action.
The created action is stateless. See SimpleAction.newStateful to create an action that has state.
the name of the action
the type of parameter that will be passed to handlers for the activate signal, or NULL for no parameter
a new gio.SimpleAction
ConstructionException GTK+ fails to create the object.
2.28
Creates a new action.
The created action is stateless. See SimpleAction.newStateful to create an action that has state.