CDocument::SaveModified
Called by the framework before a modified document is to be closed.
virtual BOOL SaveModified( );
Return Value
Nonzero if it is safe to continue and close the document; 0 if the document should not be closed.
Remarks
The default implementation of this function displays a message box asking the user whether to save the changes to the document, if any have been made. Override this function if your program requires a different prompting procedure. This is an advanced overridable.
Requirements
Header: afxwin.h