KB181173 - WD98: How to Clear the Undo Stack

Article ID: 181173

Article Last Modified on 7/13/2007

Microsoft Word 98 for Macintosh

This article was previously published under Q181173

SUMMARY

This article contains several methods for clearing the Undo stack in Word.

MORE INFORMATION

By design, you cannot turn off the Undo or Redo commands, nor can you change the maximum number of actions Word stores in the Undo or Redo stacks (up to approximately 100 or the total number of actions in one document). NOTE: If you are experiencing out-of-memory or slow-performance problems, be sure to rule out other Word or system operations as the cause.

To clear the Undo and Redo stacks in Word, use any of the following methods.

Method 1: Protect the Document for Forms

On the Tools menu, click Protect Document.
Under Protect Document For, click Forms.
Click OK.

NOTE: If you do not actually want to protect your document, click Unprotect Document on the Tools menu.

Method 2: Create and Use a Macro

Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements. The following sample Visual Basic for Applications macro clears the undo stack for the active document.

   Sub ClearActiveDocumentUndoStack()
      ActiveDocument.UndoClear
   End Sub

The following sample Visual Basic for Applications macro clears the undo stack for all open documents.

   Sub ClearAllDocumentsUndoStack()
      Dim oDocUndoStack as Object
      For Each oDocUndoStack In Application.Documents
         oDocUndoStack.UndoClear
      Next oDocUndoStack
   End Sub

For additional information, please see the following article in the Microsoft Knowledge Base:

173707 OFF97: How to Run Sample Code from Knowledge Base Articles

Additional query words: slow slows uses up depleted depletes exhausted exhausts low memory oom insufficient enough out nukes nuked erase erases deletes delete remove removes vb vba vbe

Keywords: kbhowto kbmacroexample KB181173