+VALUE TO_EVAS_OBJECT (Evas_Object *o)
+{
+ void *obj;
+
+ if (!o)
+ return Qnil;
+
+ if (!(obj = evas_object_data_get (o, RUBY_EVAS_OBJECT_KEY))) {
+ rb_raise (rb_eException, "EvasObject Ruby object key missing");
+ return Qnil;
+ }
+
+ return (VALUE) obj;
+}
+