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Inject .dll into Qt and call functions

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  • Johannes SJ Offline
    Johannes SJ Offline
    Johannes S
    wrote on last edited by
    #23

    Thanks a million guys, didn't have time to look into it today, but I'll try everything out tomorrow and let you know how it worked!

    1 Reply Last reply
    0
    • Johannes SJ Offline
      Johannes SJ Offline
      Johannes S
      wrote on last edited by Johannes S
      #24

      Okay, I've tried to dump some info on the window. This is what I got:

      Dumping window info:
      Class name: TableMainWidget
      Horizontal size policy: 5 Vertical size policy: 5
      Minimum size: 480/340
      Maximum size: 2560/1815
      44 children found:
      
      Class name: QRubberBand
      
      Class name: QWidget
      Form
      Class name: TableLayoutWidget
      
      Class name: QGraphicsView
      
      Class name: QWidget
      
      Class name: QScrollBar
      
      Class name: QWidget
      
      Class name: QScrollBar
      
      Class name: QWidget
      
      Class name: QWidget
      
      Class name: QWidget
      Form
      Class name: CMinigamesTitleWidget
      
      Class name: QWidget
      
      Class name: QGraphicsView
      
      Class name: QWidget
      
      Class name: QScrollBar
      
      Class name: QWidget
      
      Class name: QScrollBar
      
      Class name: QWidget
      
      Class name: QWidget
      
      Class name: QGraphicsView
      
      Class name: QWidget
      
      Class name: QScrollBar
      
      Class name: QWidget
      
      Class name: QScrollBar
      
      Class name: QWidget
      
      Class name: QScrollArea
      
      Class name: QWidget
      Form
      Class name: CMinigamesPanelWidget
      
      Class name: QWidget
      
      Class name: QWebView
      Betfair
      Class name: QWebView
      
      Class name: QWidget
      
      Class name: QScrollBar
      
      Class name: QWidget
      
      Class name: QScrollBar
      
      Class name: QWidget
      
      Class name: QWidget
      
      Class name: QWidget
      
      Class name: QWidget
      
      Class name: QWidget
      
      Class name: QWidget
      
      Class name: QWidget
      
      Class name: QWidget
      

      Not that helpful so far...I'm trying to get GammaRay to work.

      EDIT: So, I've cloned the git repo and cmake. I've used the cmake gui to build GammaRay with the visual studio 12 compiler. Then I've opened the solution file and built it with Qt5.
      For two files, I'm getting this error:

      qtmain.lib(qtmain_win.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1600' doesn't match value '1800' in main.obj
      

      The other 70 succeed. I then tried to start the gammaray.exe, but I'm getting:
      error1
      error2

      What am I doing wrong here? Sorry that I seem to be so incompetent, I'm always struggling with this sh*t..

      J kshegunovK 2 Replies Last reply
      0
      • Johannes SJ Johannes S

        Okay, I've tried to dump some info on the window. This is what I got:

        Dumping window info:
        Class name: TableMainWidget
        Horizontal size policy: 5 Vertical size policy: 5
        Minimum size: 480/340
        Maximum size: 2560/1815
        44 children found:
        
        Class name: QRubberBand
        
        Class name: QWidget
        Form
        Class name: TableLayoutWidget
        
        Class name: QGraphicsView
        
        Class name: QWidget
        
        Class name: QScrollBar
        
        Class name: QWidget
        
        Class name: QScrollBar
        
        Class name: QWidget
        
        Class name: QWidget
        
        Class name: QWidget
        Form
        Class name: CMinigamesTitleWidget
        
        Class name: QWidget
        
        Class name: QGraphicsView
        
        Class name: QWidget
        
        Class name: QScrollBar
        
        Class name: QWidget
        
        Class name: QScrollBar
        
        Class name: QWidget
        
        Class name: QWidget
        
        Class name: QGraphicsView
        
        Class name: QWidget
        
        Class name: QScrollBar
        
        Class name: QWidget
        
        Class name: QScrollBar
        
        Class name: QWidget
        
        Class name: QScrollArea
        
        Class name: QWidget
        Form
        Class name: CMinigamesPanelWidget
        
        Class name: QWidget
        
        Class name: QWebView
        Betfair
        Class name: QWebView
        
        Class name: QWidget
        
        Class name: QScrollBar
        
        Class name: QWidget
        
        Class name: QScrollBar
        
        Class name: QWidget
        
        Class name: QWidget
        
        Class name: QWidget
        
        Class name: QWidget
        
        Class name: QWidget
        
        Class name: QWidget
        
        Class name: QWidget
        
        Class name: QWidget
        

        Not that helpful so far...I'm trying to get GammaRay to work.

        EDIT: So, I've cloned the git repo and cmake. I've used the cmake gui to build GammaRay with the visual studio 12 compiler. Then I've opened the solution file and built it with Qt5.
        For two files, I'm getting this error:

        qtmain.lib(qtmain_win.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1600' doesn't match value '1800' in main.obj
        

        The other 70 succeed. I then tried to start the gammaray.exe, but I'm getting:
        error1
        error2

        What am I doing wrong here? Sorry that I seem to be so incompetent, I'm always struggling with this sh*t..

        J Offline
        J Offline
        JulienMaille
        wrote on last edited by JulienMaille
        #25

        @Johannes-S GammaRay needs to be compiled for exactly the Qt version you are using in the application you are debugging (and on most platforms even with the same compiler and compiler settings)

        https://github.com/KDAB/GammaRay/wiki/Getting-GammaRay

        Johannes SJ 1 Reply Last reply
        0
        • Johannes SJ Johannes S

          Okay, I've tried to dump some info on the window. This is what I got:

          Dumping window info:
          Class name: TableMainWidget
          Horizontal size policy: 5 Vertical size policy: 5
          Minimum size: 480/340
          Maximum size: 2560/1815
          44 children found:
          
          Class name: QRubberBand
          
          Class name: QWidget
          Form
          Class name: TableLayoutWidget
          
          Class name: QGraphicsView
          
          Class name: QWidget
          
          Class name: QScrollBar
          
          Class name: QWidget
          
          Class name: QScrollBar
          
          Class name: QWidget
          
          Class name: QWidget
          
          Class name: QWidget
          Form
          Class name: CMinigamesTitleWidget
          
          Class name: QWidget
          
          Class name: QGraphicsView
          
          Class name: QWidget
          
          Class name: QScrollBar
          
          Class name: QWidget
          
          Class name: QScrollBar
          
          Class name: QWidget
          
          Class name: QWidget
          
          Class name: QGraphicsView
          
          Class name: QWidget
          
          Class name: QScrollBar
          
          Class name: QWidget
          
          Class name: QScrollBar
          
          Class name: QWidget
          
          Class name: QScrollArea
          
          Class name: QWidget
          Form
          Class name: CMinigamesPanelWidget
          
          Class name: QWidget
          
          Class name: QWebView
          Betfair
          Class name: QWebView
          
          Class name: QWidget
          
          Class name: QScrollBar
          
          Class name: QWidget
          
          Class name: QScrollBar
          
          Class name: QWidget
          
          Class name: QWidget
          
          Class name: QWidget
          
          Class name: QWidget
          
          Class name: QWidget
          
          Class name: QWidget
          
          Class name: QWidget
          
          Class name: QWidget
          

          Not that helpful so far...I'm trying to get GammaRay to work.

          EDIT: So, I've cloned the git repo and cmake. I've used the cmake gui to build GammaRay with the visual studio 12 compiler. Then I've opened the solution file and built it with Qt5.
          For two files, I'm getting this error:

          qtmain.lib(qtmain_win.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1600' doesn't match value '1800' in main.obj
          

          The other 70 succeed. I then tried to start the gammaray.exe, but I'm getting:
          error1
          error2

          What am I doing wrong here? Sorry that I seem to be so incompetent, I'm always struggling with this sh*t..

          kshegunovK Offline
          kshegunovK Offline
          kshegunov
          Moderators
          wrote on last edited by
          #26

          @Johannes-S
          Besides Gamma ray, i'd suggest focusing your investigations on CMinigamesPanelWidget subclass (possibly on Betfair as well).

          Read and abide by the Qt Code of Conduct

          1 Reply Last reply
          0
          • J JulienMaille

            @Johannes-S GammaRay needs to be compiled for exactly the Qt version you are using in the application you are debugging (and on most platforms even with the same compiler and compiler settings)

            https://github.com/KDAB/GammaRay/wiki/Getting-GammaRay

            Johannes SJ Offline
            Johannes SJ Offline
            Johannes S
            wrote on last edited by
            #27

            @JulienMaille Yeah I figured that out, but I wasn't even able to start GammaRay without attaching it to anything...

            1 Reply Last reply
            0
            • Johannes SJ Offline
              Johannes SJ Offline
              Johannes S
              wrote on last edited by Johannes S
              #28

              Thank you very much, all of you who helped me here!
              I finally got it to work today. It was the TableLayoutWidget, which I had tried to resize before, but I made a stupid mistake...I checked if the className was equal to "TableLayoutWidget" and resized only if it was. However, since I received the classname as a const char* the comparison to a string always failed and nothing happened...

              So now all thats left to do is to find a way to easily communicate with the process to resize windows without reinjecting a .dll every time.

              Thanks again!

              EDIT: Do you know if there's a way to automatically subclass (SetWindowLong with a new WndProc) all windows of a process?

              kshegunovK 1 Reply Last reply
              1
              • Johannes SJ Johannes S

                Thank you very much, all of you who helped me here!
                I finally got it to work today. It was the TableLayoutWidget, which I had tried to resize before, but I made a stupid mistake...I checked if the className was equal to "TableLayoutWidget" and resized only if it was. However, since I received the classname as a const char* the comparison to a string always failed and nothing happened...

                So now all thats left to do is to find a way to easily communicate with the process to resize windows without reinjecting a .dll every time.

                Thanks again!

                EDIT: Do you know if there's a way to automatically subclass (SetWindowLong with a new WndProc) all windows of a process?

                kshegunovK Offline
                kshegunovK Offline
                kshegunov
                Moderators
                wrote on last edited by kshegunov
                #29

                @Johannes-S
                I'm glad it worked.

                So now all thats left to do is to find a way to easily communicate with the process to resize windows without reinjecting a .dll every time.

                This may not be possible, although don't hold me to that statement.

                Do you know if there's a way to automatically subclass (SetWindowLong with a new WndProc) all windows of a process?

                I have no clue what you're talking about, but it's probably just me. I haven't developed for Windows for quite a lot of years.

                Kind regards.

                Read and abide by the Qt Code of Conduct

                1 Reply Last reply
                0
                • P Offline
                  P Offline
                  patxi
                  wrote on last edited by patxi
                  #30

                  Hi, sorry for the bump. I am upping this because I'd like to share some more thoughts about this topic with @Johannes-S. I hope I didn't break any rules.

                  mrjjM 1 Reply Last reply
                  0
                  • P patxi

                    Hi, sorry for the bump. I am upping this because I'd like to share some more thoughts about this topic with @Johannes-S. I hope I didn't break any rules.

                    mrjjM Offline
                    mrjjM Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on last edited by
                    #31

                    @patxi
                    Its quite ok
                    but the poster has not been online for 10 month so you might have better luck just posting a new question
                    regarding GammaRay and see what happens :)

                    1 Reply Last reply
                    0
                    • Y Offline
                      Y Offline
                      yue.feng
                      wrote on last edited by
                      #32

                      @Johannes-S
                      hi , i use CreateRemoteThread to inject a dll into a qt application ,after QCoreApplication::instance()->installEventFilter (this);
                      eventFilter doesnt work... i dont know why...please help

                      jsulmJ 1 Reply Last reply
                      0
                      • Y yue.feng

                        @Johannes-S
                        hi , i use CreateRemoteThread to inject a dll into a qt application ,after QCoreApplication::instance()->installEventFilter (this);
                        eventFilter doesnt work... i dont know why...please help

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #33

                        @yue-feng said in Inject .dll into Qt and call functions:

                        please help

                        How? You don't provide much information.
                        Did you verify that QCoreApplication::instance()->installEventFilter (this) is called?
                        If it is called did you do any debugging to see whether you event filter is called?

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

                        Y 1 Reply Last reply
                        1
                        • jsulmJ jsulm

                          @yue-feng said in Inject .dll into Qt and call functions:

                          please help

                          How? You don't provide much information.
                          Did you verify that QCoreApplication::instance()->installEventFilter (this) is called?
                          If it is called did you do any debugging to see whether you event filter is called?

                          Y Offline
                          Y Offline
                          yue.feng
                          wrote on last edited by yue.feng
                          #34

                          @jsulm
                          i tested yesterday, the reason why eventFilter doesnt work is that the ptr get from QCoreApplication::instance() is nullptr.....
                          i think i use QCoreApplication::instance() in a wrong place...

                          jsulmJ 1 Reply Last reply
                          0
                          • Y yue.feng

                            @jsulm
                            i tested yesterday, the reason why eventFilter doesnt work is that the ptr get from QCoreApplication::instance() is nullptr.....
                            i think i use QCoreApplication::instance() in a wrong place...

                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #35

                            @yue-feng said in Inject .dll into Qt and call functions:

                            i think i use QCoreApplication::instance() in a wrong place

                            Yes, looks like you use it before QCoreApplication instance is created.

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

                            Y 1 Reply Last reply
                            1
                            • jsulmJ jsulm

                              @yue-feng said in Inject .dll into Qt and call functions:

                              i think i use QCoreApplication::instance() in a wrong place

                              Yes, looks like you use it before QCoreApplication instance is created.

                              Y Offline
                              Y Offline
                              yue.feng
                              wrote on last edited by yue.feng
                              #36

                              @jsulm
                              the question is solved,Thank you very much

                              1 Reply Last reply
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