Queries the current state of the named action within this.
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 get_action_state_type.
The return value (if non-null) should be freed with g_variant_unref
when it is
no longer required.
this | |
action_name |
the name of the action to query |
the current state of the action |