DOCUMENT:Q175616  24-OCT-1997  [vbwin]
TITLE   :BUG: Error 438: "Object doesn't support this property or Method"
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:4.0
OPER/SYS:Win95 WINDOWS
KEYWORDS:vb416 VB4WIN

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

 - Microsoft Visual Basic Enterprise Edition, 16-bit only, for Windows,
   version 4.0
   on the following platform: Win95
---------------------------------------------------------------------

SYMPTOMS
========

Error 438 occurs when running a program in which a form is assigned to a
variable and that variable is used to access a control on the form if the
program is on a system running Windows 95 with Regional Settings set to a
setting other than English (United States).  The error text is:

   Run-Time Error #438:
   Object doesn't support this property or method

RESOLUTION
==========

There are two possible workarounds for this problem.

 - Access the form directly rather than by a variable containing the form.

   -or-

 - Create property procedures in the form's code to provide access to the
   properties of the controls on the form.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed
at the beginning of this article. We are researching this bug and will post
new information here in the Microsoft Knowledge Base as it becomes
available.

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

To reproduce this bug consistently, you will need HeapWalker, a utility
that ships with the Windows 16-bit Software Development Kit and the 16-bit
version of Visual C++.

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

1. From Control Panel, click Regional Settings to open the Regional
   Settings dialog box. Set the Regional Settings to English (Australian).

2. Start the 16-bit edition of Visual Basic 4.0. If it is already running,
   select New Project from the File menu,.

3. Add a CommandButton to Form1.

4. Copy the following code to the Code window of Form1:

      Private Sub Command1_Click()
         Dim MyForm As Form
         Dim i As Long
         Set MyForm = Form1
         For i = 1 To 10000
            MyForm.Command1.Caption = i
            DoEvents
         Next i
       End Sub

5. From the File menu, click Make EXE File to create an executable file.

6. Run the executable file and then click the CommandButton in your
   program. While it is running, run HeapWalker's Segmentation Test.
   You will receive the run-time error #438.
======================================================================
Keywords          : vb416 VB4WIN
Version           : WINDOWS:4.0
Platform          : Win95 WINDOWS
Issue type        : kbbug

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

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 1997.