DOCUMENT:Q180494 15-NOV-2001 [vbwin] TITLE :BUG: Private Variables in a Module Are Public PRODUCT :Microsoft Visual Basic for Windows PROD/VER::3.0 OPER/SYS: KEYWORDS:kbToolkit kbVBp kbVBp500bug kbVBp600bug kbOSWinCEsearch kbOSWinCE100 kbGrpDSVB ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft eMbedded Visual Basic, version 3.0 - Microsoft Windows CE Toolkit for Visual Basic 6.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When a variable is declared in a module as Private, it is seen throughout the project as if it were declared Public. RESOLUTION ========== Take care when declaring form variables and module variables so that the wrong variable is not inadvertently addressed. STATUS ====== Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. MORE INFORMATION ================ Steps to Reproduce Behavior --------------------------- 1. Start a new Windows CE project in either eMbedded Visual Basic or Visual Basic 6.0. Form1 is created by default. 2. Add a module to the project. 3. In the module, add the following line of code: Private myMessage 4. Add a command button to Form1. 5. Paste the following code into Form1: Option Explicit Private Sub Command1_Click() myMessage = "myMessage is set" MsgBox myMessage End Sub 6. Press F5 to run the project and note that the Click event has full access to the module's private variable. The expected behavior is to get the message "Variable not defined." (c) Microsoft Corporation Mike Dixon, All Rights Reserved. Contributions by 1999, Microsoft Corporation. Additional query words: wince vbce vbce6 evb ====================================================================== Keywords : kbToolkit kbVBp kbVBp500bug kbVBp600bug kbOSWinCEsearch kbOSWinCE100 kbGrpDSVB Technology : kbVBSearch kbAudDeveloper kbZNotKeyword2 kbVBeMbSearch kbWinCETKVBSearch kbWinCESearch kbVBeMb300 Version : :3.0 Issue type : kbbug Solution Type : kbpending ============================================================================= 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 2001.