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QIODevice cannot open .ui file from resources.

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  • Z zspinelli

    @JonB
    The errorString gives me "No such file or directory"

    JonBJ Offline
    JonBJ Offline
    JonB
    wrote on last edited by
    #4

    @zspinelli
    So that's the explanation for the error! That's all I was saying.

    Z 1 Reply Last reply
    0
    • JonBJ JonB

      @zspinelli
      So that's the explanation for the error! That's all I was saying.

      Z Offline
      Z Offline
      zspinelli
      wrote on last edited by
      #5

      @JonB
      I just found something now for a tool called rcc. Is that absolutely always neccessary to use qrc stuff?
      If so, I think this might be the problem.

      JonBJ SGaistS 2 Replies Last reply
      0
      • Z zspinelli

        @JonB
        I just found something now for a tool called rcc. Is that absolutely always neccessary to use qrc stuff?
        If so, I think this might be the problem.

        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on last edited by
        #6

        @zspinelli
        I assume your form resource is not at :/_qtresources/ui/NewDocumentForm.ui.

        Z 1 Reply Last reply
        0
        • JonBJ JonB

          @zspinelli
          I assume your form resource is not at :/_qtresources/ui/NewDocumentForm.ui.

          Z Offline
          Z Offline
          zspinelli
          wrote on last edited by
          #7

          @JonB
          That's the exact path to it from the top of the source directory in the file system.
          That's the path resources gave it when I added the form to the project.
          I don't know where it would be if it's not there.

          JonBJ 1 Reply Last reply
          0
          • Z zspinelli

            @JonB
            I just found something now for a tool called rcc. Is that absolutely always neccessary to use qrc stuff?
            If so, I think this might be the problem.

            SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #8

            Hi,

            @zspinelli said in QIODevice cannot open .ui file from resources.:

            @JonB
            I just found something now for a tool called rcc. Is that absolutely always neccessary to use qrc stuff?
            If so, I think this might be the problem.

            Yes that is mandatory. Resources must be first created like in C++. See here.

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

            Z 1 Reply Last reply
            1
            • Z zspinelli

              @JonB
              That's the exact path to it from the top of the source directory in the file system.
              That's the path resources gave it when I added the form to the project.
              I don't know where it would be if it's not there.

              JonBJ Offline
              JonBJ Offline
              JonB
              wrote on last edited by
              #9

              @zspinelli said in QIODevice cannot open .ui file from resources.:

              That's the exact path to it from the top of the source directory in the file system.

              That's not what you want at runtime. The :/... file path syntax is treated by Qt as referring to a resource compiled into your executable, not a real, external file. Follow @SGaist's link to achieve that.

              Z 1 Reply Last reply
              1
              • SGaistS SGaist

                Hi,

                @zspinelli said in QIODevice cannot open .ui file from resources.:

                @JonB
                I just found something now for a tool called rcc. Is that absolutely always neccessary to use qrc stuff?
                If so, I think this might be the problem.

                Yes that is mandatory. Resources must be first created like in C++. See here.

                Z Offline
                Z Offline
                zspinelli
                wrote on last edited by
                #10

                @SGaist
                The link you posted shows an example using a tool called "pyside6-rcc".
                If that's supposed to be installed with PySide6 then for some reason I don't have it. I found this page https://stackoverflow.com/questions/22479581/cannot-use-pyside-rcc-to-compile-qrc-file mentioning some locations where it might be but it isn't present in any of them.

                However I found another page: https://doc.qt.io/qtforpython/overviews/resources.html showing the use of the regular "rcc" which I do have as part of the Qt installation. Before I try the example shown there, should I know if one is one tool is more preferable than the other?

                1 Reply Last reply
                0
                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #11

                  If the one you have supports Python code generation, then use it.

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

                  1 Reply Last reply
                  0
                  • Z Offline
                    Z Offline
                    zspinelli
                    wrote on last edited by
                    #12

                    I found pyside6-rcc. I'm going to note for posterity that it was found under C:\Users\<username>\AppData\Roaming\Python\Python39\Scripts

                    I ran it, got the py output as per the demonstration, and imported it. The errorString for the QFile is now "Unknown error".

                    1 Reply Last reply
                    0
                    • JonBJ JonB

                      @zspinelli said in QIODevice cannot open .ui file from resources.:

                      That's the exact path to it from the top of the source directory in the file system.

                      That's not what you want at runtime. The :/... file path syntax is treated by Qt as referring to a resource compiled into your executable, not a real, external file. Follow @SGaist's link to achieve that.

                      Z Offline
                      Z Offline
                      zspinelli
                      wrote on last edited by
                      #13

                      @JonB @SGaist
                      After lot of internet searching and fistfighting the code, I got my project back on track and got some other stuff fixed as well.
                      I had pyside6 module installed wrong and was using the wrong approach for integrating the UI form.
                      @SGaist Your recommendation for pyside6-rss led me to pyside6-uic, which was what I really needed.

                      I'm thankful to you both for tolerating and assisting me.

                      1 Reply Last reply
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