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Installation and getting started with first app

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  • K Offline
    K Offline
    KennedyDayala
    wrote on last edited by
    #50

    tried...it added an 'empty item' at 0th position,and 'c:' at 1st..and no more :-(

    Never Ever Give Up

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      andre
      wrote on last edited by
      #51

      So... you need to aquire some debugging skills... Just try to follow what happens in your code. Don't guess: measure instead. Try for instance to insert statements like this at every relevant point in your function, and look at the output:

      @
      qDebug() << LINE;
      @

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      • K Offline
        K Offline
        KennedyDayala
        wrote on last edited by
        #52

        :-)) ok..will do that..

        Never Ever Give Up

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        • G Offline
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          goetz
          wrote on last edited by
          #53

          Of course you must have an empty first entry, because you create this one outside your loop (line 21 in your original code snippet).

          This is the compactified working version:

          @
          void FancyClass::populate() {
          ui->treeWidget->setColumnCount(1);
          QStringList headers;
          headers << "Storage Device";
          ui->treeWidget->setHeaderLabels(headers);

          QTreeWidgetItem *rootItem = new QTreeWidgetItem(ui->treeWidget);
          rootItem->setText(0, "SystemDevice");
          
          foreach(QFileInfo drive, QDir::drives()) {
              QTreeWidgetItem *driveItem = new QTreeWidgetItem(rootItem);
              driveItem->setText(0, drive.absoluteFilePath());
          }
          

          }
          @

          http://www.catb.org/~esr/faqs/smart-questions.html

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          • A Offline
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            andre
            wrote on last edited by
            #54

            /me is thinking that instead of building a tree like that himself, he would use a QFileSystemModel instead...

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            • K Offline
              K Offline
              KennedyDayala
              wrote on last edited by
              #55

              thanks a lot...I will try with QFileSystemModel too..

              Never Ever Give Up

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              • K Offline
                K Offline
                KennedyDayala
                wrote on last edited by
                #56

                "The program can't start because mingwm10.dll is missing from your computer.Try reinstalling the program to fix this problem."

                ..i am getting this error when i tried running my application in stand alone mode...any help ??

                Never Ever Give Up

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                • G Offline
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                  giesbert
                  wrote on last edited by
                  #57

                  YOu are startin g without QtCreator, right?

                  Did you try to search the forum for answers?

                  see this "post":http://developer.qt.nokia.com/forums/viewthread/4869

                  Nokia Certified Qt Specialist.
                  Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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                  • K Offline
                    K Offline
                    KennedyDayala
                    wrote on last edited by
                    #58

                    yes Gerolf..I searched..everybody says that we need to set the invironment varioables..I did that too but of no use..

                    Never Ever Give Up

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                    • G Offline
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                      giesbert
                      wrote on last edited by
                      #59

                      put the needed dlls beside your exe or set the PATH environment variable to contain the path to mingw10.dll.

                      Nokia Certified Qt Specialist.
                      Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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                      • K Offline
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                        KennedyDayala
                        wrote on last edited by
                        #60

                        I have set the PATH environment variable..but it says QtCode4.dll is missing !!

                        Never Ever Give Up

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                        • G Offline
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                          giesbert
                          wrote on last edited by
                          #61

                          QtCode4? what's this? or do you mean QtCore4.dll?
                          Then the path to this dll is miossinmg :-)
                          You have to add it also.

                          Nokia Certified Qt Specialist.
                          Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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                          • K Offline
                            K Offline
                            KennedyDayala
                            wrote on last edited by
                            #62

                            sorry..that was typo..QtCore4.dll is correct..but where will this DLL reside ?

                            Never Ever Give Up

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                            • G Offline
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                              giesbert
                              wrote on last edited by
                              #63

                              you find it inside your Qt installation
                              depends which version you installed
                              In Qt SDK with Qt 4.7.2, look here:

                              <QtSDK Dir>\Desktop\Qt\4.7.2\mingw\bin

                              Nokia Certified Qt Specialist.
                              Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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                              • K Offline
                                K Offline
                                KennedyDayala
                                wrote on last edited by
                                #64

                                excellent Gerolf..it is working now..but my icons on buttons and Toolbar are missing in standalone application..

                                Never Ever Give Up

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                                • G Offline
                                  G Offline
                                  giesbert
                                  wrote on last edited by
                                  #65

                                  How did you add them?
                                  using from the file system or add them to a qrc file?

                                  Nokia Certified Qt Specialist.
                                  Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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                                  • G Offline
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                                    goetz
                                    wrote on last edited by
                                    #66

                                    [quote author="Thomas Kennedy" date="1301650049"]excellent Gerolf..it is working now..but my icons on buttons and Toolbar are missing in standalone application..[/quote]

                                    Could be some missing image format plugins. Please look in the forum search for "imageformats plugins", it was discussed recently with some hints about how to resolve this issue.

                                    http://www.catb.org/~esr/faqs/smart-questions.html

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                                    • K Offline
                                      K Offline
                                      KennedyDayala
                                      wrote on last edited by
                                      #67

                                      yep...now I understood how to create .qrc file..many thanks..

                                      Never Ever Give Up

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                                      • K Offline
                                        K Offline
                                        KennedyDayala
                                        wrote on last edited by
                                        #68

                                        i have 7 strings with me..I would like to show them in a text editor line by line...how would i do that ??

                                        Never Ever Give Up

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                                        • K Offline
                                          K Offline
                                          KennedyDayala
                                          wrote on last edited by
                                          #69

                                          I have used Insert() method to do that..thanks for no reply :-)

                                          Never Ever Give Up

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