Q141143: How to Determine the Active & Previously Active Forms

Article: Q141143
Product(s): Microsoft FoxPro
Version(s): WINDOWS:3.0,3.0b
Operating System(s): 
Keyword(s): 
Last Modified: 11-DEC-1999

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

- Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b 
-------------------------------------------------------------------------------

SUMMARY
=======

The command _SCREEN.ACTIVEFORM.NAME tells you the name of the active form. There
is another way to determine the currently active form and to determine which
form was active before the current form.

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

1. Create three forms (Form1, Form2, and Form3).

2. Open the debug window and type the following:

     _SCREEN.FORMS(1).NAME
     _SCREEN.FORMS(2).NAME
     _SCREEN.FORMS(3).NAME
     _SCREEN.ACTIVEFORM.NAME
     _SCREEN.FORMCOUNT

3. Inside the Command window, type the following:

     DO FORM FORM1
     DO FORM FORM2
     DO FORM FORM3

  Note the following from the debug window:

     _SCREEN.FORMS(1).NAME         FORM1
     _SCREEN.FORMS(2).NAME         FORM2
     _SCREEN.FORMS(3).NAME         FORM3
     _SCREEN.ACTIVEFORM.NAME       FORM3
     _SCREEN.FORMCOUNT             3

     Note that _SCREEN.FORMS(3)= _SCREEN.ACTIVEFORM

4. Select Form1, and note the following changes from the debug window:

     _SCREEN.FORMS(1).NAME         FORM2
     _SCREEN.FORMS(2).NAME         FORM3
     _SCREEN.FORMS(3).NAME         FORM1
     _SCREEN.ACTIVEFORM.NAME       FORM1
     _SCREEN.FORMCOUNT             3

Notes
-----

_SCREEN.FORMS(_SCREEN.FORMCOUNT) always references the active form object.

_SCREEN.FORMS(_SCREEN.FORMCOUNT).NAME references the name of the active form.

_SCREEN.FORMS(_SCREEN.FORMCOUNT).CAPTION references the caption of the active
form.

_SCREEN.FORMS(_SCREEN.FORMCOUNT -1) always references the previously active form
object.

_SCREEN.FORMS(_SCREEN.FORMCOUNT-1).NAME references the name of the previously
active form.

_SCREEN.FORMS(_SCREEN.FORMCOUNT -1).CAPTION references the caption of the
previously active form.

Additional query words: VFoxWin

======================================================================
Keywords          :  
Technology        : kbVFPsearch kbAudDeveloper kbVFP300 kbVFP300b
Version           : WINDOWS:3.0,3.0b

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

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.