How to Determine the Active & Previously Active Forms

ID: Q141143

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

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

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

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

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 : FxtoolFormdes
Version : WINDOWS:3.0,3.0b
Platform : WINDOWS
Issue type :