Creates a new action. The created action is stateless. See g_simple_action_new_stateful(). Since 2.28
the name of the action
the type of parameter to the activate function. [allow-none]
ConstructionException GTK+ fails to create the object.
See Implementation
Creates a new action. The created action is stateless. See g_simple_action_new_stateful(). Since 2.28