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Forum Update on Monday, May 27th 2025

QWT Widgets not showing Qt Designer

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  • H Offline
    H Offline
    horizonQt
    wrote on last edited by horizonQt
    #1

    Hi everyone. I am developing gui with qt. I need a linechart to show flight data and I will use qwt. I downloaded and added the library, but it does not appear in the qtdesigner section. ı use windows. my qt version is 6.3.1 and qwt verison 6.1.6. please help

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi and welocome to devnet,

      Which version of Qt Creator are you using ?
      Did you build QWT with the same version of Qt as Qt Creator ?
      Did you deploy the plugin for Qt Creator to be able to found ?

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

      H 1 Reply Last reply
      0
      • SGaistS SGaist

        Hi and welocome to devnet,

        Which version of Qt Creator are you using ?
        Did you build QWT with the same version of Qt as Qt Creator ?
        Did you deploy the plugin for Qt Creator to be able to found ?

        H Offline
        H Offline
        horizonQt
        wrote on last edited by
        #3

        @SGaist Qt Creator 8.0.0 and build qwt 6.1.6 . ım new to QT. I dont know how to deploy the plugin for Qt Creator to be able to found. Please help me.

        SGaistS 1 Reply Last reply
        0
        • H horizonQt

          @SGaist Qt Creator 8.0.0 and build qwt 6.1.6 . ım new to QT. I dont know how to deploy the plugin for Qt Creator to be able to found. Please help me.

          SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          What does the about box of Qt Creator tell you about the Qt version used to build Qt Creator ? That's important piece, you have to build the plugin using that version of Qt,

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

          H 1 Reply Last reply
          1
          • SGaistS SGaist

            What does the about box of Qt Creator tell you about the Qt version used to build Qt Creator ? That's important piece, you have to build the plugin using that version of Qt,

            H Offline
            H Offline
            horizonQt
            wrote on last edited by
            #5

            @SGaist Qt Creator 8.0.0 based on Qt 6.3.1. But ım using desktop Qt 5.15.2 MinGW 64-bit. Thats mean when ı build new project ım use Qt5.15.2 MinGW . İts enough for you ? Thank you sir.

            jsulmJ 1 Reply Last reply
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            • H horizonQt

              @SGaist Qt Creator 8.0.0 based on Qt 6.3.1. But ım using desktop Qt 5.15.2 MinGW 64-bit. Thats mean when ı build new project ım use Qt5.15.2 MinGW . İts enough for you ? Thank you sir.

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #6

              @horizonQt If you want to build a plug-in for QtCreator you have to use same Qt version which was used to build QtCreator. So, build it using Qt 6.3.1

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

              H 1 Reply Last reply
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              • jsulmJ jsulm

                @horizonQt If you want to build a plug-in for QtCreator you have to use same Qt version which was used to build QtCreator. So, build it using Qt 6.3.1

                H Offline
                H Offline
                horizonQt
                wrote on last edited by
                #7

                @jsulm said in QWT Widgets not showing Qt Designer:

                @horizonQt If you want to build a plug-in for QtCreator you have to use same Qt version which was used to build QtCreator. So, build it using Qt 6.3.1

                im using qt creator 8.0.0 based on Qt 6.3.1. ı want to add qwt6.1.6 widgets on designer. Can you explain step by step what not to do?

                jsulmJ 1 Reply Last reply
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                • H horizonQt

                  @jsulm said in QWT Widgets not showing Qt Designer:

                  @horizonQt If you want to build a plug-in for QtCreator you have to use same Qt version which was used to build QtCreator. So, build it using Qt 6.3.1

                  im using qt creator 8.0.0 based on Qt 6.3.1. ı want to add qwt6.1.6 widgets on designer. Can you explain step by step what not to do?

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #8

                  @horizonQt See "Qwt and the Qt tool chain" -> "Designer plugin" in https://qwt.sourceforge.io/qwtinstall.html"

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

                  H 1 Reply Last reply
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                  • jsulmJ jsulm

                    @horizonQt See "Qwt and the Qt tool chain" -> "Designer plugin" in https://qwt.sourceforge.io/qwtinstall.html"

                    H Offline
                    H Offline
                    horizonQt
                    wrote on last edited by
                    #9

                    @jsulm I followed the steps. but it still does not appear as a widget. I can add it as a library and create a gui as hardcode. but ı dont see widget at qt designer

                    jsulmJ 1 Reply Last reply
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                    • H horizonQt

                      @jsulm I followed the steps. but it still does not appear as a widget. I can add it as a library and create a gui as hardcode. but ı dont see widget at qt designer

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #10

                      @horizonQt Was the designer plug-in build and installed?
                      If so you can debug plug-in issues by setting QT_DEBUG_PLUGINS to 1 before starting QtCreator (in a terminal) - that should give you more information about plug-in loading issues.

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

                      H 1 Reply Last reply
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                      • jsulmJ jsulm

                        @horizonQt Was the designer plug-in build and installed?
                        If so you can debug plug-in issues by setting QT_DEBUG_PLUGINS to 1 before starting QtCreator (in a terminal) - that should give you more information about plug-in loading issues.

                        H Offline
                        H Offline
                        horizonQt
                        wrote on last edited by horizonQt
                        #11

                        @jsulm ı cant see any problem application output. Where should I look, what should I look for?

                        jsulmJ 1 Reply Last reply
                        0
                        • H horizonQt

                          @jsulm ı cant see any problem application output. Where should I look, what should I look for?

                          jsulmJ Offline
                          jsulmJ Offline
                          jsulm
                          Lifetime Qt Champion
                          wrote on last edited by
                          #12

                          @horizonQt said in QWT Widgets not showing Qt Designer:

                          Where should I look, what should I look for?

                          As I wrote in the terminal where you set QT_DEBUG_PLUGINS and start QtCreator

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

                          H 1 Reply Last reply
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                          • jsulmJ jsulm

                            @horizonQt said in QWT Widgets not showing Qt Designer:

                            Where should I look, what should I look for?

                            As I wrote in the terminal where you set QT_DEBUG_PLUGINS and start QtCreator

                            H Offline
                            H Offline
                            horizonQt
                            wrote on last edited by
                            #13

                            @jsulm
                            https://microseismic.cn/use-qwt-library-in-qt-to-display-seismic-waveforms.html ı follow this and ı solved thanks

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