This documentation is archived and is not being maintained.


Determines if the last editing operation can be undone.

BOOL CanUndo( ) const;

Nonzero if the last edit operation can be undone by a call to the Undo member function; 0 if it cannot be undone.

For more information, see EM_CANUNDO in the Platform SDK.

// The pointer to my rich edit control.
extern CRichEditCtrl* pmyRichEditCtrl;

// Undo the last operation, if possible.
if (pmyRichEditCtrl->CanUndo())