Does QCoreApplication::processEvents call posted events processing ?

[jpn]

So, if I post event from the non-gui thread by QCoreApplication:: postEvent or emit signal from QThread:: run, connnected as Qt:: QueuedConnection it will not process while gui thread won't return to the QApplication event loop or will be processed if I make it force by QCoreApplication:: sendPostedEvents. If I call QCoreApplication:: processEvents(...) it will NOT cause posted events processing, only paint events, timer and so on ?

It doesn't matter where the event is posted (or a queued signal is emitted) from. What does matter is where the receiver object lives.

If the receiver lives in the main thread (*), the event gets added to the event queue of the main thread. QCoreApplication::processEvents() is there for processing pending events from the main thread's event queue and is not safe to be called from another thread than the main thread.

(*) with "main thread" I mean the same thread where the application object lives