Common interface for objects that have a single sub-object as content.
This is used for the default content part of widgets, as well as for individual parts through Efl.Part.
content (get, set)
Sub-object currently set as this object's single content.
Efl_Gfx_Entity *efl_content_get(const Eo *obj); Eina_Bool efl_content_set(Eo *obj, Efl_Gfx_Entity *content);
Remove the sub-object currently set as content of this object and return it. This object becomes empty.
Efl_Gfx_Entity *efl_content_unset(Eo *obj);
Sent after the content is set or unset using the current content object.