getActionState
Queries the current state of the named action within @action_group.
If the action is not stateful then null will be returned. If the action is stateful then the type of the return value is the type given by g_action_group_get_action_state_type().
The return value (if non-null) should be freed with g_variant_unref() when it is no longer required.
Return
the current state of the action
Since
2.28
Parameters
actionName
the name of the action to query