CEdit::CanUndo
Call this function to determine if the last edit operation can be undone.
BOOL CanUndo( ) const;
Return Value
Nonzero if the last edit operation can be undone by a call to the Undo member function; 0 if it cannot be undone.
Remarks
For more information, see EM_CANUNDO in the Windows SDK.
Example
See the example for CEdit::Undo.
Requirements
Header: afxwin.h