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

ID: Q199682

The information in this article applies to:

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 kbATL kbVC500 
Version           : winnt:5.0
Platform          : winnt 
Issue type        : kbprb

Last Reviewed: March 27, 1999