Adds an action to the @action_map.
A convenience function for creating multiple #GSimpleAction instances and adding them to a #GActionMap.
Get the main Gtk struct
Looks up the action with the name @action_name in @action_map.
Removes the named action from the action map.
The GActionMap interface is implemented by #GActionGroup implementations that operate by containing a number of named #GAction instances, such as #GSimpleActionGroup.
One useful application of this interface is to map the names of actions from various action groups to unique, prefixed names (e.g. by prepending "app." or "win."). This is the motivation for the 'Map' part of the interface name.