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Memory Leak in Qt 4.10.0

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  • N Offline
    N Offline
    ndiwan
    wrote on last edited by ndiwan
    #14

    Sorry, But I am not sure how to use that in Window Qt. I know ho to use valgrind in Linux

    664e751d-baa5-408f-b9a4-c36d0fd2e186-image.png

    001ebda1-77b7-4300-971e-9fc77764337b-image.png

    Actually my application runs with a login dialog. Do I need to provided user id and passoword in arguments here ?
    Also kit drop down is diable.

    Thanks

    jsulmJ 1 Reply Last reply
    0
    • N ndiwan

      Sorry, But I am not sure how to use that in Window Qt. I know ho to use valgrind in Linux

      664e751d-baa5-408f-b9a4-c36d0fd2e186-image.png

      001ebda1-77b7-4300-971e-9fc77764337b-image.png

      Actually my application runs with a login dialog. Do I need to provided user id and passoword in arguments here ?
      Also kit drop down is diable.

      Thanks

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #15

      @ndiwan said in Memory Leak in Qt 4.10.0:

      Do I need to provided user id and passoword in arguments here ?

      No

      "Also kit drop down is diable" - what do you mean?

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

      1 Reply Last reply
      0
      • N Offline
        N Offline
        ndiwan
        wrote on last edited by
        #16

        Kit dropdown is disable.

        Thansks

        jsulmJ 1 Reply Last reply
        0
        • N ndiwan

          Kit dropdown is disable.

          Thansks

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #17

          @ndiwan said in Memory Leak in Qt 4.10.0:

          Kit dropdown is disable

          This is the same what I asked about. Can you please explain what dropdown you mean? Maybe a screen-shot?

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

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          • N Offline
            N Offline
            ndiwan
            wrote on last edited by
            #18

            b19325b7-e01a-4bcb-b0c0-4aeeefc8247a-image.png

            In the above screenshot Kit combo dropdown is disable. If I click manage , I can see this:

            10ef1a27-cc0e-4834-8a40-c26bb764504e-image.png

            jsulmJ 1 Reply Last reply
            0
            • N ndiwan

              b19325b7-e01a-4bcb-b0c0-4aeeefc8247a-image.png

              In the above screenshot Kit combo dropdown is disable. If I click manage , I can see this:

              10ef1a27-cc0e-4834-8a40-c26bb764504e-image.png

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #19

              @ndiwan Do you have Valgrind? Check in Analyzer/Valgrind. You need to set the path to Valgrind executable.

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

              Christian EhrlicherC 1 Reply Last reply
              0
              • jsulmJ jsulm

                @ndiwan Do you have Valgrind? Check in Analyzer/Valgrind. You need to set the path to Valgrind executable.

                Christian EhrlicherC Online
                Christian EhrlicherC Online
                Christian Ehrlicher
                Lifetime Qt Champion
                wrote on last edited by
                #20

                @jsulm Since when does valgrind run on windows?

                Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                Visit the Qt Academy at https://academy.qt.io/catalog

                jsulmJ JonBJ 2 Replies Last reply
                2
                • Christian EhrlicherC Christian Ehrlicher

                  @jsulm Since when does valgrind run on windows?

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #21

                  @Christian-Ehrlicher Ah, Windows. Well, since never :-)

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

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                  • N Offline
                    N Offline
                    ndiwan
                    wrote on last edited by ndiwan
                    #22

                    So How I can check memory leakage in Qt Creator running on Windows 10 ?

                    Thanks

                    JonBJ 1 Reply Last reply
                    0
                    • Christian EhrlicherC Christian Ehrlicher

                      @jsulm Since when does valgrind run on windows?

                      JonBJ Offline
                      JonBJ Offline
                      JonB
                      wrote on last edited by JonB
                      #23

                      @Christian-Ehrlicher said in Memory Leak in Qt 4.10.0:

                      Since when does valgrind run on windows?

                      I am the person who originally replied to @ndiwan 's "Could you please help me with how I can detect memory leak." with "Use valgrind to detect memory leakages."

                      I read the question carefully and nowhere did it mention using Windows. One of my pet bug-bears is if questioners cannot tell you what OS they are on for a question of this kind, why should I guess they are under Windows? Other OS people tell you what they are on, why do Windows users think people ought know they are on Windows...?

                      Christian EhrlicherC 1 Reply Last reply
                      0
                      • N ndiwan

                        So How I can check memory leakage in Qt Creator running on Windows 10 ?

                        Thanks

                        JonBJ Offline
                        JonBJ Offline
                        JonB
                        wrote on last edited by
                        #24

                        @ndiwan said in Memory Leak in Qt 4.10.0:

                        So How I can check memory leakage in Qt Creator running on Windows 10 ?

                        I would imagine it would depend on what compiler you have chosen to use, which we don't know....

                        jsulmJ 1 Reply Last reply
                        0
                        • JonBJ JonB

                          @ndiwan said in Memory Leak in Qt 4.10.0:

                          So How I can check memory leakage in Qt Creator running on Windows 10 ?

                          I would imagine it would depend on what compiler you have chosen to use, which we don't know....

                          jsulmJ Offline
                          jsulmJ Offline
                          jsulm
                          Lifetime Qt Champion
                          wrote on last edited by
                          #25

                          @JonB According to Kits it's MinGW

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

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                          0
                          • JonBJ JonB

                            @Christian-Ehrlicher said in Memory Leak in Qt 4.10.0:

                            Since when does valgrind run on windows?

                            I am the person who originally replied to @ndiwan 's "Could you please help me with how I can detect memory leak." with "Use valgrind to detect memory leakages."

                            I read the question carefully and nowhere did it mention using Windows. One of my pet bug-bears is if questioners cannot tell you what OS they are on for a question of this kind, why should I guess they are under Windows? Other OS people tell you what they are on, why do Windows users think people ought know they are on Windows...?

                            Christian EhrlicherC Online
                            Christian EhrlicherC Online
                            Christian Ehrlicher
                            Lifetime Qt Champion
                            wrote on last edited by
                            #26

                            @JonB said in Memory Leak in Qt 4.10.0:

                            why do Windows users think people ought know they are on Windows...?

                            I don't know.
                            And yes - my answer would also be - use valgrind or any other proper leak checker tool and how to you know that there is a memleak at all?

                            Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                            Visit the Qt Academy at https://academy.qt.io/catalog

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                            • JoeCFDJ Offline
                              JoeCFDJ Offline
                              JoeCFD
                              wrote on last edited by JoeCFD
                              #27

                              On Windows, it may be a good idea to use Visual Studio + Qt plugin. Visual Studio is a powerful tool and has memory check functions for C++ code.
                              https://docs.microsoft.com/en-us/visualstudio/debugger/finding-memory-leaks-using-the-crt-library?view=vs-2019

                              Christian EhrlicherC 1 Reply Last reply
                              0
                              • JoeCFDJ Offline
                                JoeCFDJ Offline
                                JoeCFD
                                wrote on last edited by JoeCFD
                                #28

                                https://www.albertgao.xyz/2016/09/28/how-to-use-valgrind-on-windows/
                                I came across this, but never tried it by myself. Strongly recommend to use VS.

                                1 Reply Last reply
                                0
                                • JoeCFDJ JoeCFD

                                  On Windows, it may be a good idea to use Visual Studio + Qt plugin. Visual Studio is a powerful tool and has memory check functions for C++ code.
                                  https://docs.microsoft.com/en-us/visualstudio/debugger/finding-memory-leaks-using-the-crt-library?view=vs-2019

                                  Christian EhrlicherC Online
                                  Christian EhrlicherC Online
                                  Christian Ehrlicher
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #29

                                  @JoeCFD said in Memory Leak in Qt 4.10.0:

                                  Visual Studio is a powerful tool

                                  powerful? Nice try...

                                  Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                                  Visit the Qt Academy at https://academy.qt.io/catalog

                                  1 Reply Last reply
                                  0
                                  • N Offline
                                    N Offline
                                    ndiwan
                                    wrote on last edited by
                                    #30

                                    Thanks , I will try VS.

                                    Thanks

                                    1 Reply Last reply
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