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[SOLVED]can't open file from qresources

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  • M Offline
    M Offline
    mcosta
    wrote on last edited by
    #13

    HI,

    have you used Q_INIT_RESOURCE to initialize the resource??

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    • HamedH Offline
      HamedH Offline
      Hamed
      wrote on last edited by
      #14

      No! where should I initialize it?

      HamedBabaeyan@yahoo.com
      for more interesting stuff

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      0
      • M Offline
        M Offline
        mcosta
        wrote on last edited by
        #15

        Hi,

        in the main(); something like

        int main (int argc, char *argv[])
        {
            QApplication app(argc, argv);
        
            Q_INIT_RESOURCE(mresources);
        
            .....
        }
        

        Once your problem is solved don't forget to:

        • Mark the thread as SOLVED using the Topic Tool menu
        • Vote up the answer(s) that helped you to solve the issue

        You can embed images using (http://imgur.com/) or (http://postimage.org/)

        ? 1 Reply Last reply
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        • M mcosta

          Hi,

          in the main(); something like

          int main (int argc, char *argv[])
          {
              QApplication app(argc, argv);
          
              Q_INIT_RESOURCE(mresources);
          
              .....
          }
          
          ? Offline
          ? Offline
          A Former User
          wrote on last edited by
          #16

          @mcosta said:

          Q_INIT_RESOURCE

          Since when is this needed? Works for me without this.

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          1
          • HamedH Offline
            HamedH Offline
            Hamed
            wrote on last edited by
            #17

            dear @mcosta it's not helped

            HamedBabaeyan@yahoo.com
            for more interesting stuff

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            0
            • M Offline
              M Offline
              mcosta
              wrote on last edited by
              #18

              @Wieland Q_INIT_RESOURCE is needed if the resource is not embedded in the application or on some platform

              Normally, when resources are built as part of the application, the resources are loaded automatically at startup. The Q_INIT_RESOURCE() macro is necessary on some platforms for resources stored in a static library.

              Once your problem is solved don't forget to:

              • Mark the thread as SOLVED using the Topic Tool menu
              • Vote up the answer(s) that helped you to solve the issue

              You can embed images using (http://imgur.com/) or (http://postimage.org/)

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              • M mcosta

                @Wieland Q_INIT_RESOURCE is needed if the resource is not embedded in the application or on some platform

                Normally, when resources are built as part of the application, the resources are loaded automatically at startup. The Q_INIT_RESOURCE() macro is necessary on some platforms for resources stored in a static library.

                ? Offline
                ? Offline
                A Former User
                wrote on last edited by A Former User
                #19

                @mcosta Things are a bit strange here. Reading from the resource works. In the code I posted above there is the bytearray ba and it has the correct size, but it contains only null bytes. But only on Hamed's computer! Works on mine. I don't get it.

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                • M Offline
                  M Offline
                  mcosta
                  wrote on last edited by
                  #20

                  hi,

                  so you could try to use an alias

                  <RCC>
                  <qresource prefix="/plane">
                  <file alias="j3pipercub.obj">j3pipercub.obj</file>
                  </qresource>
                  </RCC>
                  
                  

                  Once your problem is solved don't forget to:

                  • Mark the thread as SOLVED using the Topic Tool menu
                  • Vote up the answer(s) that helped you to solve the issue

                  You can embed images using (http://imgur.com/) or (http://postimage.org/)

                  ? 1 Reply Last reply
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                  • HamedH Offline
                    HamedH Offline
                    Hamed
                    wrote on last edited by
                    #21

                    It didn't help either!

                    HamedBabaeyan@yahoo.com
                    for more interesting stuff

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                    0
                    • M mcosta

                      hi,

                      so you could try to use an alias

                      <RCC>
                      <qresource prefix="/plane">
                      <file alias="j3pipercub.obj">j3pipercub.obj</file>
                      </qresource>
                      </RCC>
                      
                      
                      ? Offline
                      ? Offline
                      A Former User
                      wrote on last edited by
                      #22

                      @mcosta Ok, the code that copies the content from file to file2 works. The new file on the filesystem has the correct content. So the bytearray is not full of zeros. But output via qDebug() doesn't work. The system's locale is English so this should work.

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                      • E Offline
                        E Offline
                        Ebrahim Karimi
                        wrote on last edited by
                        #23

                        I'm Using Qt 6.5.2 and had the same issue and after an hour of digging and testing all your solutions i did some digging on the build folder and i saw this:

                        in <QBuild_Dir>/<cmake_project_name>/<module_name>_qml_module_dir_map.qrc

                        <RCC>
                          <qresource prefix="/">
                            <file alias="/<<<cmake_project_name>>>"><<<QBuild_Dir>>>/<<<cmake_project_name>>></file>
                        
                          </qresource>
                        </RCC>
                        

                        so there is an alias for the resource!

                        to use the resource on my C++ code i had to add it to the beginning of the resource path like

                        before:
                        ":/assets/img.svg"
                         after
                        ":/<cmake_project_name>/assets/img.svg
                        

                        and it works 👌

                        Standing on the shoulder of the giants

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