Method setImageIndex

MyGUIEngine/src/MyGUI_BackwardCompatibility.cpp:63–67

		return static_cast<const Button*>(this)->_getImageBox();
	}
	void MemberObsolete<Button>::setImageIndex(size_t _index)
	{
		if (static_cast<Button*>(this)->_getImageBox())
			static_cast<Button*>(this)->_getImageBox()->setImageIndex(_index);
	}
	size_t MemberObsolete<Button>::getImageIndex() const
	{
		if (static_cast<const Button*>(this)->_getImageBox())