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QtWebKit and MinGW with QT 5.9

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  • D davidesalvetti

    Hi all,

    I found in this topic that it's possible to use QtWebKit with mingw(https://forum.qt.io/topic/83760/any-alternative-to-qtwebengine-for-mingw/11).

    I have downloaded the folder from github but now I really don't know what to do with it to use QtWebKit in my project.

    Can anyone give me any advice?

    This is the link from where I downloaded the folder:
    https://github.com/annulen/webkit/releases/download/qtwebkit-tp5/qtwebkit-tp5-qt58-mingw530-x86.zip

    Thanks in advance.

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #2

    @davidesalvetti You need to put the content of the archive into your Qt 5.8 installation: c:\Qt\5.8\mingw53_32

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

    1 Reply Last reply
    2
    • D Offline
      D Offline
      davidesalvetti
      wrote on last edited by davidesalvetti
      #3

      This means that it won't work for QT 5.9?

      I put the content in c:\Qt\5.9.1\mingw53_32 and qt has found the

      QT += webkitwidgets
      

      now if I run my program it suddenly crash telling me "During startup program exited with code 0xc0000017" but only if I put this line in the code:

      void MainWindow::on_actionOpen_Session_triggered()
      {
          QWebView *view = new QWebView(this);
          view->load(QUrl("https://www.google.it/maps"));
          view->show();
      }
      

      I really don't understand why.

      jsulmJ 1 Reply Last reply
      0
      • D davidesalvetti

        This means that it won't work for QT 5.9?

        I put the content in c:\Qt\5.9.1\mingw53_32 and qt has found the

        QT += webkitwidgets
        

        now if I run my program it suddenly crash telling me "During startup program exited with code 0xc0000017" but only if I put this line in the code:

        void MainWindow::on_actionOpen_Session_triggered()
        {
            QWebView *view = new QWebView(this);
            view->load(QUrl("https://www.google.it/maps"));
            view->show();
        }
        

        I really don't understand why.

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #4

        @davidesalvetti Well, it was built for 5.8, it is likely that you will have problems using it with 5.9.
        Regarding the crash: is it crashing while starting or if you do something (calling on_actionOpen_Session_triggered())?

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

        D 1 Reply Last reply
        1
        • jsulmJ jsulm

          @davidesalvetti Well, it was built for 5.8, it is likely that you will have problems using it with 5.9.
          Regarding the crash: is it crashing while starting or if you do something (calling on_actionOpen_Session_triggered())?

          D Offline
          D Offline
          davidesalvetti
          wrote on last edited by
          #5

          @jsulm Thank you for the answer.

          It crashes while starting, it shows the mainwindow.ui and then it crashes. I don't call that action while starting my program so it never goes there. The strange thing is that when i comment

              QWebView *view = new QWebView(this);
              view->load(QUrl("https://www.google.it/maps"));
              view->show();
          

          everything works well.

          But at this point I don't know if this is just because I'm using QT 5.9 ...

          jsulmJ 1 Reply Last reply
          0
          • D davidesalvetti

            @jsulm Thank you for the answer.

            It crashes while starting, it shows the mainwindow.ui and then it crashes. I don't call that action while starting my program so it never goes there. The strange thing is that when i comment

                QWebView *view = new QWebView(this);
                view->load(QUrl("https://www.google.it/maps"));
                view->show();
            

            everything works well.

            But at this point I don't know if this is just because I'm using QT 5.9 ...

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #6

            @davidesalvetti My guess is that your app is trying to load the QtWebkit DLL which is not compatible with your Qt version.

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

            D 1 Reply Last reply
            2
            • jsulmJ jsulm

              @davidesalvetti My guess is that your app is trying to load the QtWebkit DLL which is not compatible with your Qt version.

              D Offline
              D Offline
              davidesalvetti
              wrote on last edited by
              #7

              @jsulm Also mine. I will find another solution. Thank you for your time!

              K 1 Reply Last reply
              0
              • D davidesalvetti

                @jsulm Also mine. I will find another solution. Thank you for your time!

                K Offline
                K Offline
                Konstantin Tokarev
                wrote on last edited by
                #8

                @davidesalvetti For Qt 5.9 you can use prebuilt binaries from https://github.com/annulen/webkit/releases/tag/qtwebkit-5.212.0-alpha2

                D 1 Reply Last reply
                2
                • K Konstantin Tokarev

                  @davidesalvetti For Qt 5.9 you can use prebuilt binaries from https://github.com/annulen/webkit/releases/tag/qtwebkit-5.212.0-alpha2

                  D Offline
                  D Offline
                  davidesalvetti
                  wrote on last edited by
                  #9

                  @Konstantin-Tokarev I tried those binaries, but It gives me exactly the same problem.

                  1 Reply Last reply
                  0
                  • D davidesalvetti

                    Hi all,

                    I found in this topic that it's possible to use QtWebKit with mingw(https://forum.qt.io/topic/83760/any-alternative-to-qtwebengine-for-mingw/11).

                    I have downloaded the folder from github but now I really don't know what to do with it to use QtWebKit in my project.

                    Can anyone give me any advice?

                    This is the link from where I downloaded the folder:
                    https://github.com/annulen/webkit/releases/download/qtwebkit-tp5/qtwebkit-tp5-qt58-mingw530-x86.zip

                    Thanks in advance.

                    Q Offline
                    Q Offline
                    Qt2019
                    wrote on last edited by
                    #10

                    @davidesalvetti
                    I have used ”qtwebkit-5.212.0_alpha2-qt59-mingw530-x86.zip“,it can compile OK,but it crashes when running the programe. my code is just a webview demo...

                    1 Reply Last reply
                    0
                    • K Offline
                      K Offline
                      Konstantin Tokarev
                      wrote on last edited by
                      #11

                      @Qt2019 Does it crash when you load some site, or even with "about:blank"? If you are using debug build please try release.

                      1 Reply Last reply
                      0

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