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