[ Version ( since = "2.28" ) ]
public abstract Variant? get_state ()
Queries the current state of 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_state_type.
The return value (if non-null) should be freed with g_variant_unref
when it is no longer
required.
this |
a Action |
the current state of the action |