>>Native VFP textbox and editbox controls do not have their own hWnds - they're user-rendered based on the hWnd of their container. You may want to use an ActiveX textbox/editbox instead of the natie VFP control classes, or with VFP7, might want to use the IAccessible interface tohandle the VFP controls - all VFP controls expose an IAccessible interface so that VFP 7 deliver MS Accessibility support.
>
>How can get the IAccessible interface from a VFP7 control. I tried the following:
>

>loTestForm = CREATEOBJECT('form')
>loTestForm.AddObject('Test','textbox')
>loTestAccessible = GETINTERFACE(loTestForm.test, 'IAccessible')
>

>
>But it does not work, because loTestForm.test is not a COM object.
>Can you give an example please?

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fox7help/html/fotskusingautomatedtestharness.asp

and

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fox7help/html/fourfaccessibilitybrowswerwindow.asp