Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. Problems in practicing and running an example
Forum Updated to NodeBB v4.3 + New Features

Problems in practicing and running an example

Scheduled Pinned Locked Moved Solved General and Desktop
31 Posts 3 Posters 9.7k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • tomyT tomy

    All images are in the same folder on my Desktop, in this address:
    C:\Users\Abbasi\Desktop\images

    So how should I give the paths of images to the code please?

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by mrjj
    #11

    @tomy
    Hi
    I would move the images to an image folder under the project.
    Then i would use a qres file and the ":/" syntax
    (like here engine.load(QUrl(QLatin1String("qrc:/main.qml")));)

    https://www.youtube.com/watch?v=sWIQIi4lg58
    http://www.bogotobogo.com/Qt/Qt5_Resource_Files.php

    You can right click an image when inside the qres file and get path there.

    1 Reply Last reply
    0
    • tomyT Offline
      tomyT Offline
      tomy
      wrote on last edited by tomy
      #12

      Hi,

      The purpose is to add a folder (or some files) to the project as resources to use them easier, yeah? OK, I did these:

      According to the tuts, I created a Resource file named MyRes like this.
      Please note that the Path there is the same path as the project (Main).

      I use /MyFiles as the Prefix and add all 4 files, the images (from the image folder on the Desktop).
      When adding the files, this message is appeared for all four files. I don't know what to do here.

      mrjjM 1 Reply Last reply
      0
      • tomyT tomy

        Hi,

        The purpose is to add a folder (or some files) to the project as resources to use them easier, yeah? OK, I did these:

        According to the tuts, I created a Resource file named MyRes like this.
        Please note that the Path there is the same path as the project (Main).

        I use /MyFiles as the Prefix and add all 4 files, the images (from the image folder on the Desktop).
        When adding the files, this message is appeared for all four files. I don't know what to do here.

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #13

        @tomy
        Hi
        Can you right click myres.qrc and choose "Add existing files" , then
        select the images. ?

        1 Reply Last reply
        0
        • tomyT Offline
          tomyT Offline
          tomy
          wrote on last edited by
          #14

          Yes,

          And it resulted in this!

          mrjjM 1 Reply Last reply
          0
          • tomyT tomy

            Yes,

            And it resulted in this!

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by mrjj
            #15

            @tomy

            That is why i wanted you to move the images to under the project.
            The :/Myfile path is not correct. the files are not there...

            Anyway, now right click each image and you can copy correct path to use.

            1 Reply Last reply
            0
            • tomyT Offline
              tomyT Offline
              tomy
              wrote on last edited by
              #16

              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 1 Reply Last reply
              0
              • 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

                                          • Login

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular
                                          • Users
                                          • Groups
                                          • Search
                                          • Get Qt Extensions
                                          • Unsolved