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how to add library(qmqtt.h) in qmqtt client for windows

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  • S shravani

    @jsulm
    it is inside src only.do i need to add anywhere else again?
    after building library it created in /bin so i copied from there to src folder

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #34

    @shravani The DLL must be in a directory where the operating system is looking for shared libraries when loading an app. Fastest way is to copy it to the build directory of your app (where your executable is).

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

    S 2 Replies Last reply
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    • jsulmJ jsulm

      @shravani The DLL must be in a directory where the operating system is looking for shared libraries when loading an app. Fastest way is to copy it to the build directory of your app (where your executable is).

      S Offline
      S Offline
      shravani
      wrote on last edited by
      #35
      This post is deleted!
      1 Reply Last reply
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      • jsulmJ jsulm

        @shravani The DLL must be in a directory where the operating system is looking for shared libraries when loading an app. Fastest way is to copy it to the build directory of your app (where your executable is).

        S Offline
        S Offline
        shravani
        wrote on last edited by
        #36

        @jsulm
        i added all dlls but now getting this error
        0_1498976658348_error.png

        1 Reply Last reply
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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #37

          Hi,

          You can't start an application like that from explorer, you first have to follow the same steps you would before deploying your application on another computer.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          S 1 Reply Last reply
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          • SGaistS SGaist

            Hi,

            You can't start an application like that from explorer, you first have to follow the same steps you would before deploying your application on another computer.

            S Offline
            S Offline
            shravani
            wrote on last edited by shravani
            #38

            @SGaist
            In Qt creator also I'm getting same error after adding ucrtbased.dll to debug folder.
            i tried executing examples given in qt but getting same error.
            recently i installed this qt 5.8.1 msvc2015 new version because in qt 5.0 it(mqtt) is not working.

            0_1499045791448_error2.png 0_1499045799223_path.png

            jsulmJ 1 Reply Last reply
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            • S shravani

              @SGaist
              In Qt creator also I'm getting same error after adding ucrtbased.dll to debug folder.
              i tried executing examples given in qt but getting same error.
              recently i installed this qt 5.8.1 msvc2015 new version because in qt 5.0 it(mqtt) is not working.

              0_1499045791448_error2.png 0_1499045799223_path.png

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #39

              @shravani Which DLLs exactly did you copy and from where? No need to copy ucrtbased.dll when starting from QtCreator.

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

              S 1 Reply Last reply
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              • jsulmJ jsulm

                @shravani Which DLLs exactly did you copy and from where? No need to copy ucrtbased.dll when starting from QtCreator.

                S Offline
                S Offline
                shravani
                wrote on last edited by shravani
                #40

                @jsulm
                but while running it showed ucrtbased.dll is missing)DLL not found as above post)

                jsulmJ 1 Reply Last reply
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                • S shravani

                  @jsulm
                  but while running it showed ucrtbased.dll is missing)DLL not found as above post)

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #41

                  @shravani While running from QtCreator?

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

                  S 1 Reply Last reply
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                  • jsulmJ jsulm

                    @shravani While running from QtCreator?

                    S Offline
                    S Offline
                    shravani
                    wrote on last edited by shravani
                    #42

                    @jsulm
                    while running from qt creator(DLL not found)

                    0_1499057065092_Capture.PNG
                    so i checked from outside qt to see which dll missing.so i added that

                    jsulmJ 1 Reply Last reply
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                    • S shravani

                      @jsulm
                      while running from qt creator(DLL not found)

                      0_1499057065092_Capture.PNG
                      so i checked from outside qt to see which dll missing.so i added that

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #43

                      @shravani Running outside from QtCreator is different. You actually only need to copy your qmqtt.dll if you want to run from QtCreator. If you want to run outside of QtCreator you need to deploy your app as @SGaist already said. In one of my previous posts in this thread I posted a link to a side where you can read how to deploy your app on Windows.

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

                      S 1 Reply Last reply
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                      • jsulmJ jsulm

                        @shravani Running outside from QtCreator is different. You actually only need to copy your qmqtt.dll if you want to run from QtCreator. If you want to run outside of QtCreator you need to deploy your app as @SGaist already said. In one of my previous posts in this thread I posted a link to a side where you can read how to deploy your app on Windows.

                        S Offline
                        S Offline
                        shravani
                        wrote on last edited by shravani
                        #44

                        @jsulm
                        i copied qmqtt.dll but still got that error (DLL not found).do i need to add anything else?

                        jsulmJ 1 Reply Last reply
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                        • S shravani

                          @jsulm
                          i copied qmqtt.dll but still got that error (DLL not found).do i need to add anything else?

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

                          @shravani After adding qmqtt.dll which DLL is missing?

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

                          S 1 Reply Last reply
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                          • jsulmJ jsulm

                            @shravani After adding qmqtt.dll which DLL is missing?

                            S Offline
                            S Offline
                            shravani
                            wrote on last edited by
                            #46

                            @jsulm
                            it was just showing the above error.i cannot find which dll is missing

                            jsulmJ 1 Reply Last reply
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                            • S shravani

                              @jsulm
                              it was just showing the above error.i cannot find which dll is missing

                              jsulmJ Offline
                              jsulmJ Offline
                              jsulm
                              Lifetime Qt Champion
                              wrote on last edited by
                              #47

                              @shravani When you built qmqtt.dll were any other DLLs created in the same directory? Did you try to find out what is missing using http://www.dependencywalker.com ?

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

                              S 1 Reply Last reply
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                              • jsulmJ jsulm

                                @shravani When you built qmqtt.dll were any other DLLs created in the same directory? Did you try to find out what is missing using http://www.dependencywalker.com ?

                                S Offline
                                S Offline
                                shravani
                                wrote on last edited by
                                #48

                                @jsulm
                                only 2 dll files(qmqtt.dll,qmqttd.dll) created and i copied both.

                                jsulmJ 1 Reply Last reply
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                                • S shravani

                                  @jsulm
                                  only 2 dll files(qmqtt.dll,qmqttd.dll) created and i copied both.

                                  jsulmJ Offline
                                  jsulmJ Offline
                                  jsulm
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #49

                                  @shravani Then you should deploy your app using Qt Windows Deployment Tool and see which DLL will end up in your deployment directory.

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

                                  S 2 Replies Last reply
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                                  • jsulmJ jsulm

                                    @shravani Then you should deploy your app using Qt Windows Deployment Tool and see which DLL will end up in your deployment directory.

                                    S Offline
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                                    shravani
                                    wrote on last edited by
                                    #50

                                    @jsulm
                                    i changed build to release and its working now.

                                    1 Reply Last reply
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                                    • jsulmJ jsulm

                                      @shravani Then you should deploy your app using Qt Windows Deployment Tool and see which DLL will end up in your deployment directory.

                                      S Offline
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                                      shravani
                                      wrote on last edited by shravani
                                      #51

                                      @jsulm
                                      i am able to connect to emq broker.
                                      but it is not connecting to other brokers like shiftr.io,IBM cloud through internet ?

                                      jsulmJ 1 Reply Last reply
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                                      • S shravani

                                        @jsulm
                                        i am able to connect to emq broker.
                                        but it is not connecting to other brokers like shiftr.io,IBM cloud through internet ?

                                        jsulmJ Offline
                                        jsulmJ Offline
                                        jsulm
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #52

                                        @shravani Should be possible if you have Internet connection and access rights.

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

                                        S 1 Reply Last reply
                                        1
                                        • jsulmJ jsulm

                                          @shravani Should be possible if you have Internet connection and access rights.

                                          S Offline
                                          S Offline
                                          shravani
                                          wrote on last edited by
                                          #53

                                          @jsulm
                                          internet connection is there. access rights?
                                          do i need to change anything in qt program?

                                          jsulmJ 1 Reply Last reply
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