Called by the framework as part of the File Save or File Save As command.
virtual BOOL OnSaveDocument( LPCTSTR lpszPathName );
Points to the fully qualified path to which the file should be saved.
Nonzero if the document was successfully saved; otherwise 0.
The default implementation of this function opens the specified file, calls CObject::Serialize to write the document's data to the file, and then marks the document as clean. Override this function if you want to perform special processing when the framework saves a document. For example, you might write an application where documents represent records in a database rather than separate files.