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  4. [SOLVED] QPushButton. I click on the button, but nothing not happend.
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[SOLVED] QPushButton. I click on the button, but nothing not happend.

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  • I Offline
    I Offline
    I-sty
    wrote on last edited by
    #11

    [quote author="goblincoding" date="1342523306"]You can "use Qt designer":http://doc.trolltech.com/main-snapshot/designer-connection-mode.html to set up the signal\slot connection.

    Alternatively, why not try this (if you want to do it manually in your constructor):

    @connect(ui->pushButton, SIGNAL(clicked()), this, SLOT(apply()));@

    (I assumed your UI button is still called pushButton?)[/quote]

    I set a other slot, called "slot1", with Qt designer.
    I debuged, and i gave 3 errors.

    "Debugging starts
    Object::connect: No such slot QDialog::slot1() in ./ui_setrefreshspeed.h:57
    Object::connect: (sender name: 'pushButton')
    Object::connect: (receiver name: 'setRefreshSpeed')
    Debugging has finished
    "

    This is the line number 57:
    @QObject::connect(pushButton, SIGNAL(clicked()), setRefreshSpeed, SLOT(slot1()));
    @

    Sorry, for my bad English. My first language is Hungarian.

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    • A Offline
      A Offline
      andre
      wrote on last edited by
      #12

      Did you actually create a slot with that name?

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      • I Offline
        I Offline
        I-sty
        wrote on last edited by
        #13

        [quote author="Andre" date="1342525437"]Did you actually create a slot with that name?[/quote]

        Yes.

        Sorry, for my bad English. My first language is Hungarian.

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        • A Offline
          A Offline
          andre
          wrote on last edited by
          #14

          Show us the complete code then, please.

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          • I Offline
            I Offline
            I-sty
            wrote on last edited by
            #15

            Can I upload here the files? Or I can only copying?

            Sorry, for my bad English. My first language is Hungarian.

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            • A Offline
              A Offline
              andre
              wrote on last edited by
              #16

              No, you cannot upload files here. You could use pastebin for code sections, or perhaps a public dropbox folder.

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              • S Offline
                S Offline
                Sam
                wrote on last edited by
                #17

                [quote author="I-sty" date="1342525774"]Can I upload here the files? Or I can only copying?[/quote]

                Your wish . You can zip the project folder upload it somewhere and paste the link here or write all the files.

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                • M Offline
                  M Offline
                  Mr.Programmer
                  wrote on last edited by
                  #18

                  You can do this kind of codes automatically with only using Qt Creator.

                  It binds events and... with using some dialog windows and wizards!

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                  • I Offline
                    I Offline
                    I-sty
                    wrote on last edited by
                    #19

                    "on the Google Drive":https://docs.google.com/folder/d/0B2_XIe25TBZFYUdDU0FIRVZxMTA/edit

                    Sorry, for my bad English. My first language is Hungarian.

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                    • G Offline
                      G Offline
                      goblincoding
                      wrote on last edited by
                      #20

                      Your problem is this:

                      @
                      void MainWindow::on_actionOther_triggered()
                      {
                      Ui::setRefreshSpeed something;
                      QDialog *d = new QDialog;
                      something.setupUi(d);
                      d->show();
                      }
                      @

                      You're creating QDialog object, not a refreshSpeed object and QDialog does not have a slot1() (as your compiler rightfully pointed out). You also do not need to explicitly create or setup the UI (that's kind of the whole point with Qt Designer Form classes :) ). This is what you want:

                      @
                      void MainWindow::on_actionOther_triggered()
                      {
                      //Ui::setRefreshSpeed something;
                      setRefreshSpeed *d = new setRefreshSpeed;
                      d->setAttribute( Qt::WA_DeleteOnClose );
                      //something.setupUi(d);
                      d->show();
                      }
                      @

                      http://www.goblincoding.com

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                      • I Offline
                        I Offline
                        I-sty
                        wrote on last edited by
                        #21

                        [quote author="goblincoding" date="1342530066"]Your problem is this:

                        @
                        void MainWindow::on_actionOther_triggered()
                        {
                        Ui::setRefreshSpeed something;
                        QDialog *d = new QDialog;
                        something.setupUi(d);
                        d->show();
                        }
                        @

                        You're creating QDialog object, not a refreshSpeed object and QDialog does not have a slot1() (as your compiler rightfully pointed out). You also do not need to explicitly create or setup the UI (that's kind of the whole point with Qt Designer Form classes :) ). This is what you want:

                        @
                        void MainWindow::on_actionOther_triggered()
                        {
                        //Ui::setRefreshSpeed something;
                        setRefreshSpeed *d = new setRefreshSpeed;
                        d->setAttribute( Qt::WA_DeleteOnClose );
                        //something.setupUi(d);
                        d->show();
                        }
                        @[/quote]

                        Thanks, goblincoding! :D

                        I rewrote, and works perfectly.

                        @void MainWindow::on_actionOther_triggered()
                        {
                        short x = freq;
                        setRefreshSpeed *d = new setRefreshSpeed;
                        d->setAttribute(Qt::WA_DeleteOnClose);
                        d->exec();

                        if (freq != x){
                            timer->start(freq);
                            ui->action1s->setChecked(false);
                            ui->action2s->setChecked(false);
                            ui->action3s->setChecked(false);
                            ui->actionOther->setChecked(true);
                        }
                        

                        }@

                        Sorry, for my bad English. My first language is Hungarian.

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                        • I Offline
                          I Offline
                          I-sty
                          wrote on last edited by
                          #22

                          So, the topic is solved. Not? :)
                          This problem is resolved. I'll write the next. :D

                          Sorry, for my bad English. My first language is Hungarian.

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                          • S Offline
                            S Offline
                            Sam
                            wrote on last edited by
                            #23

                            Glad that you got the code working. Kindly Edit your title and add Solved to it.

                            Happy Coding!!!!

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                            • G Offline
                              G Offline
                              goblincoding
                              wrote on last edited by
                              #24

                              Happy to finally be of some service here :D

                              http://www.goblincoding.com

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