DOCUMENT:Q221734  01-JUL-1999  [foxpro]
TITLE   :FIX: C0000005 Fatal Error With Invalid Property Name
PRODUCT :Microsoft FoxPro
PROD/VER:WINDOWS:6.0
OPER/SYS:
KEYWORDS:kbservicepack kbAutomation kbOOP kbvfp600 kbvfp600bug kbVS600sp2fix kbVS600sp3fix kbGrp

======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Visual FoxPro for Windows, version 6.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

Visual FoxPro terminates after displaying the following message:

   Fatal error: Exception code = C0000005

This behavior occurs when attempting to access an invalid property of an object.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

This bug was corrected in Visual Studio 6.0 Service Pack 3. For more information
about Visual Studio service packs, please see the following articles in the
Microsoft Knowledge Base:

Q194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

Q194295 HOWTO: Tell That Visual Studio 6.0 Service Packs Are Installed

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

The following steps require Microsoft Outlook to be installed on the computer
that is running Visual FoxPro.

1. Create a program named Getitems.prg using the following code:

      oTraverse = CREATEOBJECT("traverseoutlook")
      oTraverse.BeginTraverse

      DEFINE CLASS TraverseOutlook AS CUSTOM
         nNestingLevel = 0
         oOutLookObject = NULL
         olNameSpace = NULL

         PROCEDURE INIT
            WITH THIS
               .oOutLookObject = CREATEOBJECT("Outlook.Application")
               .olNameSpace = .oOutLookObject.GetNameSpace("MAPI")
            ENDWITH
         ENDPROC

         PROCEDURE BeginTraverse
            LOCAL folder
            FOR EACH folder ;
                  IN THIS.olNameSpace.Folders
               THIS.ProcessFolder(folder)
            NEXT folder
         ENDPROC

         PROCEDURE ProcessFolder(subfolder)
            * The valid property is THIS.nNestingLevel
            THIS.NestingLevel = THIS.NestingLevel + 1
            ?REPLICATE(CHR(9),THIS.NestingLevel-1),subfolder.NAME
            FOR EACH folder IN subfolder.Folders
               THIS.ProcessFolder(folder)
            NEXT folder
            FOR EACH ITEM IN subfolder.Items
               ?REPLICATE(CHR(9),THIS.NestingLevel),ITEM.subject
            NEXT ITEM
            THIS.NestingLevel = THIS.NestingLevel - 1
         ENDPROC
      ENDDEFINE

2. In the Command window, type the following:

DO GETITEMS

3. Visual FoxPro terminates after displaying the following error message:

   Fatal error: Exception code = C0000005

4. Replace the ProcessFolder (subfolder) code with the following code:

      THIS.nNestingLevel = THIS.nNestingLevel + 1
      ?REPLICATE(CHR(9),THIS.nNestingLevel-1),subfolder.NAME
      FOR EACH folder IN subfolder.Folders
         THIS.ProcessFolder(folder)
      NEXT folder
       FOR EACH ITEM IN subfolder.Items
         ?REPLICATE(CHR(9),THIS.nNestingLevel),ITEM.subject
      NEXT ITEM
      THIS.nNestingLevel = THIS.nNestingLevel - 1

5. In the Command window, type the following:

      DO GETITEMS

6. Note that Visual FoxPro outputs information to the screen as the Outlook
   folder hierarchy is traversed.

Additional query words: kbDSE

======================================================================
Keywords          : kbservicepack kbAutomation kbOOP kbvfp600 kbvfp600bug kbVS600sp2fix kbVS600sp3fix kbGrpDSFox kbVS600SP1fix 
Technology        : kbVFPsearch kbAudDeveloper kbVFP600
Version           : WINDOWS:6.0
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1999.