DOCUMENT:Q181172  13-MAY-2002  [word97]
TITLE   :WD97: How to Clear the Undo Stack
PRODUCT :Word 97 for Windows
PROD/VER:WINDOWS:97
OPER/SYS:
KEYWORDS:kbdta kbmacroexample word97

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The information in this article applies to:

 - Microsoft Word 97 for Windows 
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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 (limited by
resources and document size (maximum document size of 32 megs without
graphics)).


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
----------------------------------------

1. On the Tools menu, click Protect Document.

2. Under Protect Document For, click Forms.

3. 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, including, but not limited to, the implied
warranties of merchantability and/or fitness for a particular purpose. This
article assumes that you are familiar with the programming language being
demonstrated and the tools used to create and debug procedures. Microsoft
support professionals 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 needs. If you have
limited programming experience, you may want to contact a Microsoft Certified
Partner or the Microsoft fee-based consulting line at (800) 936-5200. For more
information about Microsoft Certified Partners, please visit the following
Microsoft Web site:

   http://www.microsoft.com/partner/referral/

For more information about the support options that are available and about how
to contact Microsoft, visit the following Microsoft Web site:

   http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

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:

   Q173707 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

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Keywords          : kbdta kbmacroexample word97 
Technology        : kbWordSearch kbWord97 kbWord97Search kbZNotKeyword2
Version           : WINDOWS:97
Issue type        : kbhowto

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