Hi Lee,
In Basic4ppc you can disable a form, such as
From1.Enabled = False
This will not actually disable the touch screen in the system, but any tap on the screen will be ignored by Basic4ppc, including the menu bar if any. You will still be able to close the screen tapping on (x).
On the desktop, this is a trap. Click on (x) won't close the form.
Cheers
Robert
HP hx4700