DOCUMENT:Q132227 11-FEB-2000 [foxpro] TITLE :PRB: Can't Activate or Access an Object PRODUCT :Microsoft FoxPro PROD/VER:WINDOWS:3.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Visual FoxPro for Windows, version 3.0 ------------------------------------------------------------------------------- SYMPTOMS ======== After you define a class in a program (.PRG file) and run it, nothing happens. For example, the following code, when run in a .PRG file, executes and return to the Command window: DEFINE CLASS myform AS form ADD OBJECT cmd1 as commandbutton WITH ; top = 10, ; left = 10 ENDDEFINE CAUSE ===== A class is simply a template or definition from which an object will be created. Defining a class does not create an instance of the class. RESOLUTION ========== Building on the example above, the code example creates a template from which a new object can be created. To instantiate the defined class, you must add this additional code: PUBLIC MyForm MyForm = CREATEOBJECT("MyForm") && Create a new object MyForm.Show && Show the form Read Events && Keep the event loop alive DEFINE CLASS myform AS form ADD OBJECT cmd1 as commandbutton WITH ; top = 60, ; left = 60 ENDDEFINE To cancel this code, click the Command box for this form, and click Close. Then on the Visual FoxPro menu, on the Program menu, click Cancel. STATUS ====== This behavior is by design. MORE INFORMATION ================ For additional information on objects and classes, please see these Help topics: - Class, defined. - Instance, defined. Additional query words: VFoxWin OOP ====================================================================== Keywords : Technology : kbVFPsearch kbAudDeveloper kbVFP300 Version : WINDOWS:3.0 ============================================================================= 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 2000.