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What to do with kCGEventTapDisabledBy...?
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What to do with kCGEventTapDisabledBy...?



What should an event tap callback function return when the triggering event
type is kCGEventTapDisabledByTimeout or kCGEventTapDisabledByUserInput?

I find that if I return an event of this type from the callback function, I
get a system error when the system tries to post the event.

If I return NULL from the callback when the event type is one of these
values, everything seems to work correctly. Is this the right thing to do?

(By the way, I notice that the event passed to the callback function with
one of these event types appears to yield valid values for flags, location
on the screen, and so on -- except that the timeout is always 0. Why doesn't
one of these event types have a valid timeout value?)

Bill Cheeseman


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