Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. how to add library(qmqtt.h) in qmqtt client for windows

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

Scheduled Pinned Locked Moved Solved General and Desktop
59 Posts 7 Posters 29.5k Views
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • S shravani

    @jsulm
    in this src/ qmqtt.h,.. and .lib files are there.so added that path.

    INCLUDEPATH += C:\Qt\qmqtt-master\src
    LIBS += -LC:\Qt\qmqtt-master\src -lqmqtt

    jsulmJ Online
    jsulmJ Online
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #32

    @shravani
    Again: you need the DLL file to be able to execute your app. Where is qmqtt.dll (or libqmqtt.dll)?

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

    S 1 Reply Last reply
    1
    • jsulmJ jsulm

      @shravani
      Again: you need the DLL file to be able to execute your app. Where is qmqtt.dll (or libqmqtt.dll)?

      S Offline
      S Offline
      shravani
      wrote on last edited by shravani
      #33

      @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 1 Reply Last reply
      0
      • 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 Online
        jsulmJ Online
        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
        2
        • 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
          1
          • 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
            0
            • 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
              0
              • 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
                0
                • 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 Online
                  jsulmJ Online
                  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
                  0
                  • 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
                    0
                    • S shravani

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

                      jsulmJ Online
                      jsulmJ Online
                      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
                      0
                      • 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
                        0
                        • 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 Online
                          jsulmJ Online
                          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
                          0
                          • 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
                            0
                            • S shravani

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

                              jsulmJ Online
                              jsulmJ Online
                              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
                              0
                              • 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
                                0
                                • S shravani

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

                                  jsulmJ Online
                                  jsulmJ Online
                                  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
                                  0
                                  • 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
                                    0
                                    • S shravani

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

                                      jsulmJ Online
                                      jsulmJ Online
                                      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
                                      0
                                      • 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
                                        S Offline
                                        shravani
                                        wrote on last edited by
                                        #50

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

                                        1 Reply Last reply
                                        0
                                        • 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
                                          S Offline
                                          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
                                          0

                                          • Login

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular
                                          • Users
                                          • Groups
                                          • Search
                                          • Get Qt Extensions
                                          • Unsolved