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How to display a picture

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  • P Payx

    I found what i sought :

    QStringList fileNames = QFileDialog::getOpenFileNames(this, tr("Open Image"),"/path",tr("Image Files (*.jpg)"));

    But i got all files, and i just want .jpg for now """"""tr("Image Files (*.jpg)"));"""""""""" dont work ?

    then i want to put my picture file in a label, but i can't find how to convert a QStringList to a Qimage or Qpixmap

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

    @Payx
    it should work with *.jpg.

    • but i can't find how to convert a QStringList to a Qimage or Qpixmap

    Oh just use
    fileName = QFileDialog::getOpenFileName(this,
    tr("Open Image"), "/", tr("Image Files (*.png *.jpg *.bmp)"));

    It only returns the 1 filename. ( NOTE THE MISSING s)

    ui->mylabel->setPixmap( new QPixmap(fileName ));

    1 Reply Last reply
    0
    • P Offline
      P Offline
      Payx
      wrote on last edited by
      #29

      I got one error : Expected one specifier before pixmap

      mrjjM 1 Reply Last reply
      0
      • P Payx

        I got one error : Expected one specifier before pixmap

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

        @Payx
        the class is QPixmap
        so its "new QPixmap"

        setPixmap( new QPixmap(fileName ));

        Sorry, was just fast code.

        1 Reply Last reply
        1
        • P Offline
          P Offline
          Payx
          wrote on last edited by
          #31

          Yes i tried too before post but i had one error too, so i post the first error.

          The second is :
          No matching function for call to 'Qlabel::setPixmap(QPixmap*)"

          mrjjM 1 Reply Last reply
          2
          • P Payx

            Yes i tried too before post but i had one error too, so i post the first error.

            The second is :
            No matching function for call to 'Qlabel::setPixmap(QPixmap*)"

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by mrjj
            #32

            @Payx
            Sorry not enough coffee :)

            QPixmap pix(fileName );
            setPixmap(pix);

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            • Pradeep KumarP Offline
              Pradeep KumarP Offline
              Pradeep Kumar
              wrote on last edited by Pradeep Kumar
              #33

              If u are using QImage

              m_imageLabel = new QLabel;
              QImage imagePixmap;
              imagePixmap.load(":/new/prefix1/Images/imageName.extension");
              m_imageLabel->setPixmap(QPixmap::fromImage(imagePixmap));
              

              Or

              Only QPixmap

              m_imageLabel = new QLabel;
              QPixmap imagePixmap;
              imagePixmap.load(":/new/prefix1/Images/imageName.extension");
              m_imageLabel->setPixmap(imagePixmap);
              

              imageName.extension can be image.png, image.jpeg.

              Pradeep Kumar
              Qt,QML Developer

              P 1 Reply Last reply
              2
              • Pradeep KumarP Pradeep Kumar

                If u are using QImage

                m_imageLabel = new QLabel;
                QImage imagePixmap;
                imagePixmap.load(":/new/prefix1/Images/imageName.extension");
                m_imageLabel->setPixmap(QPixmap::fromImage(imagePixmap));
                

                Or

                Only QPixmap

                m_imageLabel = new QLabel;
                QPixmap imagePixmap;
                imagePixmap.load(":/new/prefix1/Images/imageName.extension");
                m_imageLabel->setPixmap(imagePixmap);
                

                imageName.extension can be image.png, image.jpeg.

                P Offline
                P Offline
                Payx
                wrote on last edited by
                #34

                @Pradeep-Kumar said in How to display a picture:

                If u are using QImage

                m_imageLabel = new QLabel;
                QImage imagePixmap;
                imagePixmap.load(":/new/prefix1/Images/imageName.extension");
                m_imageLabel->setPixmap(QPixmap::fromImage(imagePixmap));
                

                Or

                Only QPixmap

                m_imageLabel = new QLabel;
                QPixmap imagePixmap;
                imagePixmap.load(":/new/prefix1/Images/imageName.extension");
                m_imageLabel->setPixmap(imagePixmap);
                

                imageName.extension can be image.png, image.jpeg.

                U didnt read the thread i think :-).
                But thx

                @mrjj Lol no problem :-)
                Thanks it works i will create an other thread for an other question after

                Pradeep KumarP 1 Reply Last reply
                2
                • Pradeep KumarP Offline
                  Pradeep KumarP Offline
                  Pradeep Kumar
                  wrote on last edited by
                  #35

                  Thread says how to display a picture

                  @Payx
                  Is this the thing?.
                  correct me if i was wrong.

                  Pradeep Kumar
                  Qt,QML Developer

                  P 1 Reply Last reply
                  1
                  • Pradeep KumarP Pradeep Kumar

                    Thread says how to display a picture

                    @Payx
                    Is this the thing?.
                    correct me if i was wrong.

                    P Offline
                    P Offline
                    Payx
                    wrote on last edited by
                    #36

                    @Pradeep-Kumar said in How to display a picture:

                    Thread says how to display a picture

                    @Payx
                    Is this the thing?.
                    correct me if i was wrong.

                    wow u just answer the question after 5 guys answer me.

                    1 Reply Last reply
                    1
                    • Pradeep KumarP Offline
                      Pradeep KumarP Offline
                      Pradeep Kumar
                      wrote on last edited by
                      #37

                      Hmmmmmmmmmm was toooooooooooo late.:)))

                      Pradeep Kumar
                      Qt,QML Developer

                      1 Reply Last reply
                      1
                      • P Payx

                        @Pradeep-Kumar said in How to display a picture:

                        If u are using QImage

                        m_imageLabel = new QLabel;
                        QImage imagePixmap;
                        imagePixmap.load(":/new/prefix1/Images/imageName.extension");
                        m_imageLabel->setPixmap(QPixmap::fromImage(imagePixmap));
                        

                        Or

                        Only QPixmap

                        m_imageLabel = new QLabel;
                        QPixmap imagePixmap;
                        imagePixmap.load(":/new/prefix1/Images/imageName.extension");
                        m_imageLabel->setPixmap(imagePixmap);
                        

                        imageName.extension can be image.png, image.jpeg.

                        U didnt read the thread i think :-).
                        But thx

                        @mrjj Lol no problem :-)
                        Thanks it works i will create an other thread for an other question after

                        Pradeep KumarP Offline
                        Pradeep KumarP Offline
                        Pradeep Kumar
                        wrote on last edited by
                        #38

                        Thanks it works i will create an other thread for an other question after

                        If it is working can u mark thread has solved, so it will be useful in future.
                        Cheers.:)))))))

                        Thanks,

                        Pradeep Kumar
                        Qt,QML Developer

                        1 Reply Last reply
                        1
                        • P Offline
                          P Offline
                          Payx
                          wrote on last edited by
                          #39

                          How can i do that ?

                          1 Reply Last reply
                          0
                          • Pradeep KumarP Offline
                            Pradeep KumarP Offline
                            Pradeep Kumar
                            wrote on last edited by Pradeep Kumar
                            #40

                            u have already marked as solved for this thread.

                            Pradeep Kumar
                            Qt,QML Developer

                            1 Reply Last reply
                            0
                            • Pradeep KumarP Offline
                              Pradeep KumarP Offline
                              Pradeep Kumar
                              wrote on last edited by
                              #41

                              Anyways in the right bottom of the topic u will see topic button and u see mark as solved under the topic button, click on it.

                              :)

                              Thanks.

                              Pradeep Kumar
                              Qt,QML Developer

                              1 Reply Last reply
                              1
                              • S Offline
                                S Offline
                                spice
                                wrote on last edited by
                                #42

                                The link address has expired
                                Please pay attention to select the example corresponding to your current qt version in the upper right corner
                                https://code.qt.io/cgit/qt/qtbase.git/tree/examples/widgets/widgets/imageviewer?h=5.15

                                1 Reply Last reply
                                0
                                • M Offline
                                  M Offline
                                  Milad 24
                                  Banned
                                  wrote on last edited by
                                  #43
                                  This post is deleted!
                                  1 Reply Last reply
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                                  • MaybecuteM Maybecute referenced this topic on

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