Q199682: PRB: ATL Object Wizard Cannot Add ATL Object to Existing File

Article: Q199682
Product(s): Microsoft C Compiler
Version(s): winnt:5.0
Operating System(s): 
Keyword(s): kbwizard kbATL210 kbide kbVC500 kbGrpDSTools
Last Modified: 07-MAY-2001

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

- Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0 
- Microsoft Visual C++, 32-bit Professional Edition, version 5.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

If you try to insert an ATL Object Wizard object into an existing .h or .cpp
file, you get the following error message:

  The file {filename} already exists. The Object Wizard requires a new file.
  Please enter another filename.

CAUSE
=====

The ATL Object Wizard is not designed to insert objects into existing files. You
need to provide a new file name for the .h and .cpp files.

RESOLUTION
==========

This is by design.

STATUS
======

NOTE: Microsoft Visual C++ version 6.0 does not have this limitation.

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

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

1. Create a new ATL COM AppWizard project using default options.

2. On the Insert menu, click New ATL Object.

3. Click Simple Object and then click Next.

4. In the ATL Object Wizard Properties dialog box, click the Names tab.

5. In the Short Name edit box, type obj1, and click OK.

  This creates Obj1.h and Obj1.cpp files in the project directory.

6. Repeat steps 2 to 4 above.

7. In the Short Name edit box, type obj2.

8. Change .H Name from Obj2.h to Obj1.h or .CPP Name from Obj2.cpp to Obj1.cpp.
  Click OK.

RESULTS: You should get the error message:

  The file obj1.h already exists. The Object Wizard requires a new file. Please
  enter another filename.

Additional query words:

======================================================================
Keywords          : kbwizard kbATL210 kbide kbVC500 kbGrpDSTools 
Technology        : kbVCsearch kbAudDeveloper kbVC500 kbVC32bitSearch kbVC500Search
Version           : winnt:5.0
Issue type        : kbprb

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

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.