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Widget MouseHoverEvent Disable

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  • A alonewolfsemmmy

    @mrjj
    You said didn't work I want to widget on mousehover disable effect widget
    All Right Have you advice CRC-32/MPEG-2 calculate function because When I move on widget form Crc 32 calculate error What Can I fixed

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #18

    @alonewolfsemmmy
    Hi
    That is hard to guess on as why would a hover eefct break the CRC calculation in first place ?

    Did you watch your cpu usage ? is it at 100% ?

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    • A Offline
      A Offline
      alonewolfsemmmy
      wrote on last edited by
      #19

      Okay my brother I will try you said cpu usage

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      • A Offline
        A Offline
        alonewolfsemmmy
        wrote on last edited by
        #20

        cpuUsage.JPG

        @mrjj my brother
        SerialPort 5 megabit buadrate cpu Usage

        mrjjM 1 Reply Last reply
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        • A alonewolfsemmmy

          cpuUsage.JPG

          @mrjj my brother
          SerialPort 5 megabit buadrate cpu Usage

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #21

          @alonewolfsemmmy

          Ok so its not using 100% cpu so its not due to the hover disturbs it.

          Does it happen every time if you hover something?

          Do you use StyleSheets in your app ?

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          • A Offline
            A Offline
            alonewolfsemmmy
            wrote on last edited by
            #22

            @mrjj said in yes it happen every time if you hover something

            I dont use stylesheets in my App

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            • A alonewolfsemmmy

              @mrjj said in yes it happen every time if you hover something

              I dont use stylesheets in my App

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #23

              @alonewolfsemmmy

              Ok so its not due to the stylesheet which can be heavy.

              And what happened when you disabled the button ?
              It went grey looking and no hover effect ?

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              • A Offline
                A Offline
                alonewolfsemmmy
                wrote on last edited by
                #24

                @mrj MyBrother

                When I disabled the button nothing has changed

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                • A alonewolfsemmmy

                  @mrj MyBrother

                  When I disabled the button nothing has changed

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #25

                  @alonewolfsemmmy
                  Not even the button ?
                  It should be disabled unless something in code turns it on again.

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                  • A Offline
                    A Offline
                    alonewolfsemmmy
                    wrote on last edited by
                    #26

                    Okay My brother So how can I disable the mouse thank you

                    mrjjM 1 Reply Last reply
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                    • A alonewolfsemmmy

                      Okay My brother So how can I disable the mouse thank you

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #27

                      @alonewolfsemmmy ¨

                      Hi
                      you cannot disable the mouse as its belongs to the OS.

                      However you can hide it for your app

                      QCursor cursor(Qt::BlankCursor);
                      QApplication::setOverrideCursor(cursor);
                      QApplication::changeOverrideCursor(cursor);

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                      • A Offline
                        A Offline
                        alonewolfsemmmy
                        wrote on last edited by
                        #28

                        My Brother I want to hide mouse event Please help me thank you

                        mrjjM 1 Reply Last reply
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                        • A alonewolfsemmmy

                          My Brother I want to hide mouse event Please help me thank you

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #29

                          @alonewolfsemmmy
                          Well you can take an event using an event filter
                          https://doc.qt.io/qt-5/eventsandfilters.html

                          #include <QObject>
                          #include <QMouseEvent>
                          #include <QDebug>
                          #include <QCursor>
                          
                          class myEventFilter: public QObject {
                            Q_OBJECT
                          public:
                            myEventFilter() {}
                            ~myEventFilter() {
                            }
                          protected:
                            bool eventFilter(QObject* object, QEvent* event) {
                              if(event->type() == QEvent::MouseMove) { // or what ever event you want
                                return true;
                              } else
                                return false;
                            }
                          };
                          
                          and to use it
                          ui->thebutton->installEventFilter(new myEventFilter()); 
                          
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