Q168523: FIX: Report Fails When Printing Under Windows NT 4.0

Article: Q168523
Product(s): Microsoft FoxPro
Version(s): 5.0 5.0a
Operating System(s): 
Keyword(s): kbprint kbvfp kbvfp500aBUG kbvfp500bug kbVS97sp2fix
Last Modified: 07-SEP-2001

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

- Microsoft Visual FoxPro for Windows, versions 5.0, 5.0a, on platform(s):
   - the operating system: Microsoft Windows NT 
-------------------------------------------------------------------------------

SYMPTOMS
========

When printing some reports under Windows NT, Visual FoxPro causes a Dr. Watson
error such as the following:

  Exception: Access Violation (0xc0000005)

This may happen when printing a report multiple times in a loop.

RESOLUTION
==========

Use the following code to ensure that the appropriate fields in the report file
are null-terminated, as FoxPro expects. Run this code to process the reports in
the current directory:

  

     *  Get list of report files in current directory.
     nNumReports = ADIR(aReports, "*.FRX")

     *  Loop through reports
     FOR nCurrentReport = 1 TO nNumReports
       USE (aReports[nCurrentReport,1]) EXCLUSIVE ALIAS FRXFILE

       * Add terminating null to printer information record.
       REPLACE ALL expr WITH expr + CHR(0) ;
          FOR objtype = 1 AND RIGHT(expr,1) != CHR(0)

       PACK
       USE
     NEXT

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This bug has been fixed in Visual Studio 97 Service
Pack 2.

For more information on the Visual Studio 97 Service Pack 2, please see the
following article in the Microsoft Knowledge Base:

  Q170365 INFO: Visual Studio 97 Service Packs - What, Where, and Why

Additional query words:

======================================================================
Keywords          : kbprint kbvfp kbvfp500aBUG kbvfp500bug kbVS97sp2fix 
Technology        : kbVFPsearch kbAudDeveloper
Version           : 5.0 5.0a
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 1986-2002.