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Access the UI, from multiple windows.

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  • L Offline
    L Offline
    Loc888
    wrote on last edited by
    #43

    For the love of God, this stuff is not working, i lost my patience.

    1 Reply Last reply
    0
    • L Offline
      L Offline
      Loc888
      wrote on last edited by
      #44

      Can someone create just any working example?? I want it to compile it, and see if it's gonna work.

      jsulmJ 1 Reply Last reply
      0
      • L Loc888

        Can someone create just any working example?? I want it to compile it, and see if it's gonna work.

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #45

        @Loc888 Come on it's simple. Just remove the method definition from the header file:

        // Header :
        
        explicit Window1(Settings_Window *TheTrueOne = 0, QWidget *parent = 0);
        
        // Source:
        
        Window1::Window1(Settings_Window *TheTrueOne,QWidget *parent) :         
            QWidget(parent),ui(new Ui::Window1),
            GivenToMe(TheTrueOne)
        {
            ui->setupUi(this);
        }
        

        Some reading about C++ would help.

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        L 1 Reply Last reply
        1
        • jsulmJ jsulm

          @Loc888 Come on it's simple. Just remove the method definition from the header file:

          // Header :
          
          explicit Window1(Settings_Window *TheTrueOne = 0, QWidget *parent = 0);
          
          // Source:
          
          Window1::Window1(Settings_Window *TheTrueOne,QWidget *parent) :         
              QWidget(parent),ui(new Ui::Window1),
              GivenToMe(TheTrueOne)
          {
              ui->setupUi(this);
          }
          

          Some reading about C++ would help.

          L Offline
          L Offline
          Loc888
          wrote on last edited by Loc888
          #46

          @jsulm I fixed that issue.. I mean, when i change the checkBox in the other window, nothing change, and i try like 50 times and more, and same stuff, doesn't work,and i can't understand why.

          My compiler is giving me around 50 warnings, when i create non-static data member, it is normal?

          mrjjM 1 Reply Last reply
          0
          • L Loc888

            @jsulm I fixed that issue.. I mean, when i change the checkBox in the other window, nothing change, and i try like 50 times and more, and same stuff, doesn't work,and i can't understand why.

            My compiler is giving me around 50 warnings, when i create non-static data member, it is normal?

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #47

            @Loc888
            Hi
            Nope 50 warning is not normal.
            What does warnings say ?

            Also, if nothing happens. Are you sure u are not creating a second copy/instance ?

            L 1 Reply Last reply
            0
            • mrjjM mrjj

              @Loc888
              Hi
              Nope 50 warning is not normal.
              What does warnings say ?

              Also, if nothing happens. Are you sure u are not creating a second copy/instance ?

              L Offline
              L Offline
              Loc888
              wrote on last edited by
              #48

              @mrjj

              mainwindow.h:41: Warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default]
              Settings_Window* Settings_Widget = new Settings_Window;
              ^

              Men, i don't know about that instance.....I send you a simple project, and if you want., you can take a look, i am really tired.

              mrjjM 1 Reply Last reply
              0
              • L Loc888

                @mrjj

                mainwindow.h:41: Warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default]
                Settings_Window* Settings_Widget = new Settings_Window;
                ^

                Men, i don't know about that instance.....I send you a simple project, and if you want., you can take a look, i am really tired.

                mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #49

                @Loc888
                Hi
                It gives that warning if you do

                class xxx : whatever {
                int var =0;
                }
                and not using c++ 11

                Do you have
                Settings_Window* Settings_Widget = new Settings_Window;
                in a. h file ?

                Yes, please. zip project. upload to somewhere and send me link.

                L 1 Reply Last reply
                0
                • mrjjM mrjj

                  @Loc888
                  Hi
                  It gives that warning if you do

                  class xxx : whatever {
                  int var =0;
                  }
                  and not using c++ 11

                  Do you have
                  Settings_Window* Settings_Widget = new Settings_Window;
                  in a. h file ?

                  Yes, please. zip project. upload to somewhere and send me link.

                  L Offline
                  L Offline
                  Loc888
                  wrote on last edited by
                  #50

                  @mrjj

                  http://www.mediafire.com/file/n9e0d3q02soc3z5/Test_3.rar

                  Yes, it's in .h file. Correct this stuff if you can, and try to compile, because i do a lot of tries, and i don't really know how it's looks like right now.

                  mrjjM 1 Reply Last reply
                  0
                  • L Loc888

                    @mrjj

                    http://www.mediafire.com/file/n9e0d3q02soc3z5/Test_3.rar

                    Yes, it's in .h file. Correct this stuff if you can, and try to compile, because i do a lot of tries, and i don't really know how it's looks like right now.

                    mrjjM Offline
                    mrjjM Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on last edited by
                    #51

                    @Loc888
                    Hi
                    Im not getting those warning.
                    While i look in project, you can try adding
                    CONFIG +=c++11
                    in the .pro file.
                    Delete all in build folder
                    and rebuild all

                    1 Reply Last reply
                    0
                    • mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #52

                      Hi
                      You do create a brand new mainwindow. so
                      that is why you dont see the checked checkbox as that is in first copy

                      void Window1::on_Check_Button_clicked()
                      {
                      
                          MainWindow* W1 = new MainWindow; // not the first one, u open settings in..
                      
                          ui->lineEdit->setText("Is not checked.");
                      
                      
                      
                      1 Reply Last reply
                      1
                      • mrjjM Offline
                        mrjjM Offline
                        mrjj
                        Lifetime Qt Champion
                        wrote on last edited by
                        #53

                        Hi
                        Here is working project.
                        Main issue was you created a NEW mainwindow so
                        the setting_Widget was NOT the same as one where u checked checkbox..

                        https://www.dropbox.com/s/nhrr9qpv76d1r07/Test_3B.zip?dl=0

                        I fixed it to give window1 as parameter and use it that way.
                        (as described higher up)

                        1 Reply Last reply
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