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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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  • G Offline
    G Offline
    goblincoding
    wrote on last edited by
    #10

    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?)

    http://www.goblincoding.com

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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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