RETURNS THE CODE OF THE KEY THE USER IS RELEASING
ACTION
The system variable KEY_UP_CODE returns the code of the key the user is releasing. It is usable only in the treatment of event ON_KEY_UP happening on a system object.
The system variable is associated with KEY_UP_SPECIAL which indicates if the keys CTRL, SHIFT or ALT have been used at the same time.
SYNTAX:
KEY_UP_CODE in an expression
USE ERROR EXAMPLE
rem declare a label
label enter_key
rem an EDIT is created
edit 1:set_focus 1
rem every time a key is released in EDIT, execute from label "enter_key"
on_key_up 1,enter_key
end: rem main program is finished
enter_key:
rem treatment of event
if key_up_code=13 then caption 0,"ENTER is released"
return
KEY_UP_CODE
KEY_UP_CODE
SEE ALSO
KEY_DOWN_CODE
KEY_DOWN_SPECIAL
KEY_UP_SPECIAL
ON_KEY_DOWN
ON_KEY_UP