PRB: ClassWizard Disables Add Function & Add Variable Buttons

 Last reviewed: July 10, 1997
Article ID: Q140252
The information in this article applies to:
  • The ClassWizard included with: Microsoft Visual C++, 32-bit Edition, version 4.00

SYMPTOMS

If either the header (.h) or implementation (.cpp) file for a class is a read-only file, the following buttons will be grayed out in ClassWizard:

  • Add Function button on the Message Map tab.
  • Add Variable button on Member Variables tab.
  • Add Method and Add Property buttons on the OLE Automation tab.
  • Add Event button on the OLE Event tab.

Having a project's .odl file tagged as read-only causes the same behavior, and having the .clw file tagged as read-only produces this message: 

   The ClassWizard database <path to the .clw file> is read-only.
   ClassWizard cannot continue.

CAUSE

This is by design. ClassWizard checks the attributes of the header and implementation files for a class when a class is selected from the Class Name combo box. If either file is read-only, ClassWizard can't add a new method, function, or variable to the file, so the buttons are disabled.

RESOLUTION

A simple workaround is to remove the read-only attribute from those files.

STATUS

This behavior is by design.

Keywords : kbtool kbui ssint ssvc WizardIss
Technology : kbMfc
Version : 4.0
Platform : NT WINDOWS
Issue type : kbprb

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Last reviewed: July 10, 1997
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