Toggle Esc as a READ exit key
SET ESCAPE ON | off | <xlToggle>
ON enables Esc as a READ exit key.
OFF disables Esc as a READ exit key.
<xlToggle> is a logical expression that must be enclosed in parentheses. A value of true (.T.) is the same as ON, and a value of false (.F.) is the same as OFF.
If SET ESCAPE is ON, Esc terminates the current READ. Any changes made to the current Get object are lost, and validation with RANGE or VALID is bypassed. When SET ESCAPE is OFF and the user presses Esc, the key press is ignored. With SET KEY, however, you can reassign Esc for special handling, regardless of the status of SET ESCAPE.
READ, READEXIT(), SETCANCEL(), SET KEY, SETKEY()