c++ - Will QTimer timeout signal be sent after stop() is called? -


i working on qt 5.5 / 4.8 now. worry whether timeout() signal (occasionally）sent after timer explicitly stopped calling stop() on instance?

i hope timeout() signal sent between start() , stop(), truth?

my situation is: start() , stop() both called in main thread, , timeout() signal connect directly connection. (i know queued connection cannot guarantee above statement.)

quick answer: no, won't called on of cases, there @ least 1 exception.

a situation when may called if have used queued connections. here may associated slots called after you've stopped if, example, qtimer::timeout signal happens emitted before stopping timer.

in case above slots queued (but not called), may happen call qtimer::stop before slots invoked.

if use queued connections can check qtimer::isactive() @ beginning of slot (you'll need way access timer of course, maybe member of class).


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