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Problems in practicing and running an example

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  • tomyT tomy

    The program runs without error but show nothing! Does it work for you please?
    What is the problem of this part if it's correct?

    You say that you would move the images to an image folder under the project. But how? If you mean using those two tuts, I tried and also posted the error I faced at that time. The current style of adding the path of images (as shown in the screenshot) is rather ugly I think moving the images into a folder under the project would be nicer and better.

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #17

    @tomy
    Just use the normal explorer to move the files under the project
    Try to use the qrc:/ syntax then. Since its compiled into the
    .exe i assumed :/ would work.

    tomyT 1 Reply Last reply
    0
    • mrjjM mrjj

      @tomy
      Just use the normal explorer to move the files under the project
      Try to use the qrc:/ syntax then. Since its compiled into the
      .exe i assumed :/ would work.

      tomyT Offline
      tomyT Offline
      tomy
      wrote on last edited by tomy
      #18

      Just use the normal explorer to move the files under the project

      What is this please?

      This time I tried the following but no success again.

      I copied the images folder into the project folder and used an images.qrc file like this and ran the app using that prefix name. It says it cannot open the files! What is the problem this time?
      Where did I go wrong?

      1 Reply Last reply
      0
      • tomyT Offline
        tomyT Offline
        tomy
        wrote on last edited by
        #19

        Tried again using a new project named Main3 as below, copying the image folder into the project folder.
        Here is the content of the files:
        main3.pro
        main.cpp
        images.qrc
        main.qml
        page1.qml
        Page1Form.ui.qml
        qtquickcontrols2.conf

        The program runs:
        Issues window shows nothing.
        Application Output shows this:
        Starting C:\Users\Abbasi\Documents\QML\Main3\Main3\build-Main3-Desktop_Qt_5_9_0_MinGW_32bit-Debug\debug\Main3.exe...
        QML debugging is enabled. Only use this in a safe environment.

        Compile Output shows:
        12:35:55: Elapsed time: 00:00.

        And General Messages shows nothing.

        The app shows nothing as the output.
        What is the problem? Why can't I run this example successfully?
        Why everything with Qt is that complicated and confusing?

        mrjjM 1 Reply Last reply
        0
        • tomyT tomy

          Tried again using a new project named Main3 as below, copying the image folder into the project folder.
          Here is the content of the files:
          main3.pro
          main.cpp
          images.qrc
          main.qml
          page1.qml
          Page1Form.ui.qml
          qtquickcontrols2.conf

          The program runs:
          Issues window shows nothing.
          Application Output shows this:
          Starting C:\Users\Abbasi\Documents\QML\Main3\Main3\build-Main3-Desktop_Qt_5_9_0_MinGW_32bit-Debug\debug\Main3.exe...
          QML debugging is enabled. Only use this in a safe environment.

          Compile Output shows:
          12:35:55: Elapsed time: 00:00.

          And General Messages shows nothing.

          The app shows nothing as the output.
          What is the problem? Why can't I run this example successfully?
          Why everything with Qt is that complicated and confusing?

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by mrjj
          #20

          @tomy
          You are still having issues with the paths/syntax
          The path you use is invalid
          Should have the form
          qrc:/images/filename.png

          Use the right click menu to make sure its correct.

          1 Reply Last reply
          0
          • tomyT Offline
            tomyT Offline
            tomy
            wrote on last edited by
            #21

            I used, no changes in result! :(

            mrjjM 1 Reply Last reply
            0
            • tomyT tomy

              I used, no changes in result! :(

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #22

              @tomy
              Then I dont know.
              Where did you get sample from ?

              1 Reply Last reply
              0
              • tomyT Offline
                tomyT Offline
                tomy
                wrote on last edited by
                #23

                From here, Digesting an User Interface.

                mrjjM 1 Reply Last reply
                0
                • tomyT tomy

                  From here, Digesting an User Interface.

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #24

                  @tomy
                  I made a default QML projected
                  added image folder in project folder and used
                  Image {
                  id: root
                  source: "qrc:/images/test.png"
                  }

                  and it loaded image.

                  So what ever goes wrong in your project, its minor.

                  tomyT 1 Reply Last reply
                  0
                  • mrjjM mrjj

                    @tomy
                    I made a default QML projected
                    added image folder in project folder and used
                    Image {
                    id: root
                    source: "qrc:/images/test.png"
                    }

                    and it loaded image.

                    So what ever goes wrong in your project, its minor.

                    tomyT Offline
                    tomyT Offline
                    tomy
                    wrote on last edited by tomy
                    #25

                    I made a default QML projected

                    Is it different from the "Qt Quick Console 2 Application" project? You yourself told me to create such a project above.

                    added image folder in project folder and used
                    Image {
                    id: root
                    source: "qrc:/images/test.png"
                    }

                    and it loaded image.

                    So what ever goes wrong in your project, its minor.

                    Do you do the works just like me? And do your files contain the same thing as mine? And yours works well?!
                    I tried the example using three projects, Main, Main2 and Main3. None gave me the expected result.

                    mrjjM 1 Reply Last reply
                    0
                    • tomyT tomy

                      I made a default QML projected

                      Is it different from the "Qt Quick Console 2 Application" project? You yourself told me to create such a project above.

                      added image folder in project folder and used
                      Image {
                      id: root
                      source: "qrc:/images/test.png"
                      }

                      and it loaded image.

                      So what ever goes wrong in your project, its minor.

                      Do you do the works just like me? And do your files contain the same thing as mine? And yours works well?!
                      I tried the example using three projects, Main, Main2 and Main3. None gave me the expected result.

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by mrjj
                      #26

                      @tomy said in Problems in practicing and running an example:

                      Is it different from the "Qt Quick Console 2 Application" project?

                      No it is such project.
                      then added image{...} to ApplicationWindow

                      ApplicationWindow {
                          visible: true
                          width: 640
                          height: 480
                          title: qsTr("Hello World")
                      
                          Image {
                              id: root
                              source: "qrc:/images/test.png"
                          }
                      .....
                      

                      test project
                      https://www.dropbox.com/s/kfkjb7c8dldvtr2/myqml.zip?dl=0

                      tomyT 1 Reply Last reply
                      1
                      • mrjjM mrjj

                        @tomy said in Problems in practicing and running an example:

                        Is it different from the "Qt Quick Console 2 Application" project?

                        No it is such project.
                        then added image{...} to ApplicationWindow

                        ApplicationWindow {
                            visible: true
                            width: 640
                            height: 480
                            title: qsTr("Hello World")
                        
                            Image {
                                id: root
                                source: "qrc:/images/test.png"
                            }
                        .....
                        

                        test project
                        https://www.dropbox.com/s/kfkjb7c8dldvtr2/myqml.zip?dl=0

                        tomyT Offline
                        tomyT Offline
                        tomy
                        wrote on last edited by
                        #27

                        ApplicationWindow {
                        visible: true
                        width: 640
                        height: 480

                        This part solved the issue.

                        test project
                        https://www.dropbox.com/s/kfkjb7c8dldvtr2/myqml.zip?dl=0

                        Thanks.

                        mrjjM 1 Reply Last reply
                        0
                        • tomyT tomy

                          ApplicationWindow {
                          visible: true
                          width: 640
                          height: 480

                          This part solved the issue.

                          test project
                          https://www.dropbox.com/s/kfkjb7c8dldvtr2/myqml.zip?dl=0

                          Thanks.

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #28

                          @tomy
                          Ah so the sample had no window or something like that ?

                          tomyT 1 Reply Last reply
                          0
                          • mrjjM mrjj

                            @tomy
                            Ah so the sample had no window or something like that ?

                            tomyT Offline
                            tomyT Offline
                            tomy
                            wrote on last edited by
                            #29

                            @mrjj
                            No unfortunately! Didn't you take a look at the website I offered?
                            I fear how I go on reading that book if its next examples are that vague! :-(

                            mrjjM 1 Reply Last reply
                            0
                            • tomyT tomy

                              @mrjj
                              No unfortunately! Didn't you take a look at the website I offered?
                              I fear how I go on reading that book if its next examples are that vague! :-(

                              mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by mrjj
                              #30

                              @tomy
                              Yep. seems like a good book.
                              If you read it all, i think it will give lots of insights.
                              When you then know the classes and overall architecture, it should be easier to google
                              for other examples if needed.

                              tomyT 1 Reply Last reply
                              2
                              • mrjjM mrjj

                                @tomy
                                Yep. seems like a good book.
                                If you read it all, i think it will give lots of insights.
                                When you then know the classes and overall architecture, it should be easier to google
                                for other examples if needed.

                                tomyT Offline
                                tomyT Offline
                                tomy
                                wrote on last edited by
                                #31

                                @mrjj
                                Honestly I'm reading the official Qt book (in chapter 5 now) and that book too. So I expect to encounter many problems (since I'm teaching myself the both books without any tutor). but since there are useful websites and very helpful forums (like here), I think I can cope with them, although with difficulties.

                                1 Reply Last reply
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