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What's the alternative of api 'hasPendingEvents'?

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event handling
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  • Z Offline
    Z Offline
    Zuuka
    wrote on 13 Mar 2025, 12:39 last edited by Zuuka
    #3

    Yes it has @jsulm ,
    see: https://doc.qt.io/qt-5/qcoreapplication-obsolete.html#hasPendingEvents
    But it is marked obsolete.

    So any solutions on what to use instead for newer Qt?

    J 1 Reply Last reply 13 Mar 2025, 12:46
    0
    • Z Zuuka
      13 Mar 2025, 12:39

      Yes it has @jsulm ,
      see: https://doc.qt.io/qt-5/qcoreapplication-obsolete.html#hasPendingEvents
      But it is marked obsolete.

      So any solutions on what to use instead for newer Qt?

      J Offline
      J Offline
      JonB
      wrote on 13 Mar 2025, 12:46 last edited by
      #4

      @Zuuka
      I think it was obsoleted perhaps throughout Qt5, so really only existed at Qt4?
      The simple answer is that whether there are "pending events" or not is an internal Qt detail to which you have no access and should not need to use. The natural answer is "just don't use anything like this". Why should you really need to?

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        Zuuka
        wrote on 13 Mar 2025, 12:55 last edited by
        #5

        What if i want to be sure that no more Events are beeing processed or queued before continuing e.g. cleanup etc..?!
        Should i use processEvents(AllEvents) instead?!

        J 1 Reply Last reply 13 Mar 2025, 13:02
        0
        • Z Zuuka
          13 Mar 2025, 12:55

          What if i want to be sure that no more Events are beeing processed or queued before continuing e.g. cleanup etc..?!
          Should i use processEvents(AllEvents) instead?!

          J Offline
          J Offline
          jsulm
          Lifetime Qt Champion
          wrote on 13 Mar 2025, 13:02 last edited by
          #6

          @Zuuka As long as you're busy doing something the event queue is blocked and will not process any events.

          https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • Z Offline
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            Zuuka
            wrote on 13 Mar 2025, 13:10 last edited by Zuuka
            #7

            can i query if it is blocked?
            In my case i just want to cleanup a Test class, and verify that all events have been processed before continuing with the cleanup.

            J C 2 Replies Last reply 13 Mar 2025, 15:00
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            • Z Zuuka
              13 Mar 2025, 13:10

              can i query if it is blocked?
              In my case i just want to cleanup a Test class, and verify that all events have been processed before continuing with the cleanup.

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              J Offline
              jsulm
              Lifetime Qt Champion
              wrote on 13 Mar 2025, 15:00 last edited by
              #8

              @Zuuka said in What's the alternative of api 'hasPendingEvents'?:

              can i query if it is blocked?

              Why? As I said: as long as your code is doing something (like a slot being executed) the event loop is blocked (means: it can't process events). There is no need to query anything.

              https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • S Offline
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                SGaist
                Lifetime Qt Champion
                wrote on 13 Mar 2025, 20:17 last edited by
                #9

                Hi,

                Out of curiosity, are you using QTest ?

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                • Z Offline
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                  Zuuka
                  wrote on 14 Mar 2025, 08:00 last edited by
                  #10

                  Yes, i am using QTest :)

                  J 1 Reply Last reply 14 Mar 2025, 09:09
                  0
                  • Z Zuuka
                    14 Mar 2025, 08:00

                    Yes, i am using QTest :)

                    J Offline
                    J Offline
                    JonB
                    wrote on 14 Mar 2025, 09:09 last edited by
                    #11

                    @Zuuka Then wait patiently, and doubtless @SGaist will have some suggestion on this for you :)

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                    • Z Zuuka
                      13 Mar 2025, 13:10

                      can i query if it is blocked?
                      In my case i just want to cleanup a Test class, and verify that all events have been processed before continuing with the cleanup.

                      C Offline
                      C Offline
                      Christian Ehrlicher
                      Lifetime Qt Champion
                      wrote on 14 Mar 2025, 09:21 last edited by
                      #12

                      @Zuuka said in What's the alternative of api 'hasPendingEvents'?:

                      hat all events have been processed before continuing with the cleanup.

                      What exact events?

                      Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                      Visit the Qt Academy at https://academy.qt.io/catalog

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                      • Z Offline
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                        Zuuka
                        wrote on 17 Mar 2025, 13:50 last edited by
                        #13

                        I think those are Custom Events.

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                        • C Offline
                          C Offline
                          Christian Ehrlicher
                          Lifetime Qt Champion
                          wrote on 17 Mar 2025, 13:53 last edited by
                          #14

                          Ok - why are they important? If they are that important then you also have to check for them in the first place. Use an event filter for example.

                          Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
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