I have a class I created called sysinfo that resides in atisysinfo.vcx and is included in the project. I instantiate it like so:

oSysinfo = NEWOBJECT('Sysinfo','ATISysInfo.vcx')

Then I call methods of the class:

osysinfo.bldrecords()
oSysinfo.readinfo()
OSysinfo.saveinfo()

I set properties of the class like so:

osysinfo.tcsubgroup = 'User1'
osysinfo.tcitem = 'User Settings'
osysinfo.tcsubitem = 'Safety Mode'

etc.

Here is an example of launching a report in a window. The form used for the preview window is a class:

IF mpreview

   LOCAL oPreviewForm
   oPreviewForm = NEWOBJECT('PreviewForm', 'Pro32.vcx')

   DO CASE
   CASE viewpoladr
      REPORT FORM poli_adr TO PRINTER PROMPT WINDOW PREVIEWFORM PREVIEW

>After months of inactivity I am confronting now with some problems to come back.
>
>Can someone tell how can I call a class from within a program ?
>
>Help please.
>
>Best regards.