CRichEditCtrl::EmptyUndoBuffer

void EmptyUndoBuffer( );

Remarks

Call this function to reset (clear) the undo flag of this rich edit control. The control will now be unable to undo the last editing operation. The undo flag is set whenever an operation within the rich edit control can be undone.

The undo flag is automatically cleared whenever you call the CWnd member function SetWindowText.

For more information, see EM_EMPTYUNDOBUFFER in the Win32 documentation.

Example

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

// Clear the undo buffer.
if (pmyRichEditCtrl->CanUndo())
{
   pmyRichEditCtrl->EmptyUndoBuffer();
   ASSERT(!pmyRichEditCtrl->CanUndo());
}

CRichEditCtrl Overview |  Class Members |  Hierarchy Chart

See Also   CRichEditCtrl::CanUndo¸ CRichEditCtrl::Undo, CWnd::SetWindowText