FIX: C0000005 Fatal Error With Invalid Property Name

• Microsoft Visual FoxPro for Windows, version 6.0

SYMPTOMS

Visual FoxPro terminates after displaying the following message:

Fatal error: Exception code = C0000005

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

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 kbGrpFox kbVS600SP1fix
Version : WINDOWS:6.0
Platform : WINDOWS
Issue type : kbbug