deriving-a-document-class-from-cdocument.md

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Learn more about: Deriving a Document Class from CDocument	Deriving a Document Class from CDocument	11/04/2016	CDocument class [MFC], deriving from classes [MFC], deriving from CDocument document objects [MFC], derived derived classes [MFC], functions often overridden document classes [MFC], functions often overridden	e6a198e0-9799-43c0-83c5-04174d8b532c

Deriving a Document Class from CDocument

Documents contain and manage your application's data. To use the MFC Application Wizard-supplied document class, you must do the following:

• Derive a class from CDocument for each type of document.

• Add member variables to store each document's data.

• Override CDocument's Serialize member function in your document class. Serialize writes and reads the document's data to and from disk.

Other Document Functions Often Overridden

You may also want to override other CDocument member functions. In particular, you will often need to override OnNewDocument and OnOpenDocument to initialize the document's data members and DeleteContents to destroy dynamically allocated data. For information about overridable members, see class CDocument in the MFC Reference.

See also

Using Documents