Common interface for objects that have a (single) content.
This is used for the default content part of widgets, as well as for individual parts through Efl.Part.
content (get, set)
Swallowed sub-object contained in this object.
Efl_Gfx *efl_content_get(const Eo *obj); Eina_Bool efl_content_set(Eo *obj, Efl_Gfx *content);
Unswallow the object in the current container and return it.
Efl_Gfx *efl_content_unset(Eo *obj);