Partager via

CRichEditCtrl::CanUndo

  • Article

Determines if the last editing 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

// Undo the last operation, if possible. 
if (m_myRichEditCtrl.CanUndo())
   m_myRichEditCtrl.Undo();

Requirements

Header: afxcmn.h

See Also

Reference

CRichEditCtrl Class

Hierarchy Chart

CRichEditCtrl::Undo

CRichEditCtrl::EmptyUndoBuffer

CRichEditCtrl::CanRedo

CRichEditCtrl::GetRedoName