>Hiya George:
>
>>Use BITXOR()
>

? BITXOR(nFlags, 8)

>
>I already tried BITXOR which returns the correct value the first time. However, if you run it again, you get back to 10 (relative to the stated example). Any more thoughts?
>

Gary,

The following code snippet might help

* nFlags = 8 or 2
IF BITAND(nFlags, 8) # 0
  * Clear it
  nFlags = BITXOR(nFlags, 8)
ELSE
  * Set it
  nFlags = BITOR(nFlags, 8)
ENDIF

You can also use BITTEST() to check if a particular bit is set. In this case, ? BITTEXT(nFlags, 3) (because 8 = 2 ^ 3) will tell you whether or not (.T. or .F.) it's set.