The main structure of the CorelDRAW and Corel DESIGNER object model can be summarized as follows:
In addition, the object model contains a set of filter objects, which provide support for files from other technical-graphics applications. Import filters are governed by the Layer class, while export filters are governed by the Document class.
For a visual representation of the object model, please see the object-model diagram CorelDRAW Object Model Diagram.pdf.