Stops the currently running event loop.
void exitEventLoop (
bool shutdown_all_threads = false
Calling this function will cause the event loop to stop event processing and the corresponding call to runEventLoop() will return to its caller.
|shutdown_all_threads||If true, exits event loops of all threads - false by default. Note that the event loops of all threads are automatically stopped when the main thread exits, so usually there is no need to set shutdown_all_threads to true.|