FIX: Fatal Exception Occurs When You Start Object Browser with Microsoft Active Accessibility (318999)


The information in this article applies to:

  • Microsoft Visual FoxPro for Windows 7.0
This article was previously published under Q318999

SYMPTOMS

When you use the Accessible Event Watcher from the Microsoft Active Accessibility Software Development Kit (SDK), and you start the Object Browser in Visual FoxPro 7.0, you may receive an error message similar to the following:

Fatal error: Exception code=C0000005 @ 02/27/02 09:19:59 PM. Error log file: C:\Program Files\Microsoft Visual FoxPro 7\vfp7err.log
Called from - cobjectbrowserinterface.resize line 0 { }
Called from - cobjectbrowserinterface.applysettings line 0 { }
Called from - cobjectbrowserinterface.init line 0 { }
Called from - objectbrowser line 0 { c:\program files\Microsoft Visual FoxPro 7\objectbrowser.app}
This may also occur with screen reader products that use Active Accessibility.

RESOLUTION

To resolve this problem, obtain the latest service pack for Visual FoxPro for Windows 7.0. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

316964 How to Obtain the Latest Visual FoxPro for Windows 7.0 Service Pack

STATUS

Microsoft has confirmed that this is a problem in Microsoft Visual FoxPro for Windows 7.0.

This problem was first corrected in Visual FoxPro for Windows 7.0 Service Pack 1.

MORE INFORMATION

This can occur when you monitor the Value object property and OBJ_LOCATIONCHANGE event through Active Accessibility.

Steps to Reproduce the Behavior

  1. Download the following files from Microsoft Active Accessibility 2.0 SDK Tools (http://www.msdn.Microsoft.com/downloads/default.asp?URL=/downloads/sample.asp?url=/msdn-files/027/001/785/msdncompositedoc.xml), and then save them in the same folder:
    • Accevent32.exe
    • Event32.dll


  2. Start Visual FoxPro 7.0. Make sure that the Properties window is closed.
  3. Run the Accessible Event Watcher (AccEvent32.exe) from the files that you downloaded.
  4. On the Options menu in the Accessible Event Watcher, click Settings.
  5. Click to select Display full event information for invisible/hidden windows.
  6. In the Events list, click to select OBJ_LOCATIONCHANGE. Make sure that only OBJ_LOCATIONCHANGE is selected.
  7. In the Object Properties list, click to select Value, and then click OK.
  8. Return to Visual FoxPro 7.0. On the Tools menu, click Object Browser. Note that you receive the error message that is described in the "Symptoms" section.
Modification Type:MajorLast Reviewed:5/17/2002
Keywords:kbbug kbDSupport kbVFP700sp1fix KB318999
©2002 Microsoft Corporation. All rights reserved.