Forum Discussion

dodes_po's avatar
dodes_po
Occasional Contributor
15 years ago

Visual C++ Open Application Access violation

Hi,

I'm trying trial version of TestComplete. I have C++ application which is compiled as Open Application as suggested by manual with debug info, RTTI, etc. When I then run application from VS and click at Object Browser in TC I've got Access violation reading location 0xXXXXXX. When I run the application without debugger attached (Not from VS) and refresh Object Browser in TC I see my app but WITHOUT the symbol that signals if the application is opened (Open Application).



Someone knows what could be wrong?



I'm using VS 2010, Vista 32 bit. Here is stack where the exception occurs:



>   kernel32.dll!_IsBadReadPtr@8()  + 0x3c bytes   

     kernel32.dll!_IsBadCodePtr@4()  + 0xf bytes   

     tcDelphiHook.dll!111839bf()    

     [Frames below may be incorrect and/or missing, no symbols loaded for tcDelphiHook.dll]   

     tcTextSpy.dll!1139c82d()    

     tcTextSpy.dll!1139c5f4()    

     tcTextSpy.dll!113cf72e()    

     tcTextSpy.dll!1139c995()    

     tcDelphiHook.dll!111d70ce()    

     tcDelphiHook.dll!111815e7()    

     tcDelphiHook.dll!11168c37()    

     tcDelphiHook.dll!1116603d()    

     tcDelphiHook.dll!11167904()    

     tcDelphiHook.dll!1116612b()    

     tcOpenAppHook.dll!127f807e()    

     tcOpenAppHook.dll!127f84e8()    

     tcOpenAppHook.dll!127f8190()    

     oleaut32.dll!_DispCallFunc@32()  + 0xb2 bytes   

     oleaut32.dll!CTypeInfo2::Invoke()  + 0x1b1 bytes   

     oleaut32.dll!_DispInvoke@32()  + 0x23 bytes   

     tcOpenAppHook.dll!127dde1b()    

     oleaut32.dll!_IDispatch_Invoke_Stub@48()  + 0x52 bytes   

     oleaut32.dll!_IDispatch_RemoteInvoke_Thunk@4()  + 0x5b bytes   

     rpcrt4.dll!7758fb31()    

     rpcrt4.dll!77525599()    

     rpcrt4.dll!77526d4a()    

     rpcrt4.dll!77526ccc()    

     rpcrt4.dll!775265b2()    

     rpcrt4.dll!775250ea()    

     rpcrt4.dll!7752788e()    

     rpcrt4.dll!77530573()    

     rpcrt4.dll!7753011c()    

     rpcrt4.dll!775300e3()    

     rpcrt4.dll!77530166()    

     kernel32.dll!@BaseThreadInitThunk@12()  + 0x12 bytes   

     ntdll.dll!___RtlUserThreadStart@8()  + 0x27 bytes   

     ntdll.dll!__RtlUserThreadStart@8()  + 0x1b bytes 



Thanks



Dodes
  • AlexeyKolosov's avatar
    AlexeyKolosov
    Staff
    15 years ago
    Hi Dodes,



    Testing an application which runs under debugger is not a good approach, because the debugger may conflict with TestComplete modules loaded into the tested application's process. As for the Open Applications glyph, it is no longer displayed in the Object Browser since TestComplete 6. I strongly recommend that you see the Open Applications in Visual C++ help topic for more information on peculiarities of C++ Open Applications in TestComplete 8.
  • dodes_po's avatar
    dodes_po
    Occasional Contributor
    15 years ago
    Thanks for reply,

    Ok I'll try to not run the app in debuger. I've also already read "Open Applications in Visual C++" in manual.



    I've also forget to mention that I'm using wxWidgets 2.9.x from svn trunk. In which state is it supported in TC? Because I cannot find any wxWindow instances and so in object browser.



    Thanks



    Dodes
  • dodes_po's avatar
    dodes_po
    Occasional Contributor
    15 years ago
    Hi Alexei,

    As I've said I've already read the manual about C++, Open Application s, wxWidgets, etc... Neither of those links provided answer to my question.



    I've compiled my app as stated in manual. When I then run thy application and locate it in the object  browser I cannot see any wxWidget's instances show there. I see only generic windows "objects". As stated in manual there are 2 options to use wxWidgets.The first one is to use some special wrapper classes. This method as I understand is provided automatically for MFC, Win32, ... (Or?). The second one is to use debug info agent. If I understand it correctly, this method read debug info (probably .pdb files) and get from there instances which are associated to windows. Should I provide some more info to TC to be able see some wxWidgets instances in object browser?



    And now my question:

    I have an wxWidgets application which is compiled as stated in manual with debug info ON, etc...

    What exactly should I do to be able see/use wxWidgets's based instance in TC object browser/script?



    Thanks



    Dodes
  • AlexeyKolosov's avatar
    AlexeyKolosov
    Staff
    15 years ago
    Hi Dodes,






    I have an wxWidgets application which is compiled as stated in manual with debug info ON, etc...


    What exactly should I do to be able see/use wxWidgets's based instance in TC object browser/script? 





    TestComplete should read the debug information automatically. Do you see the icon mentioned in the wxWidgets Visual C++ Applications Support help topic in your application's objects tree? If you do, it means that your application is compiled correctly and TestComplete was able to retrieve the internal application elements mentioned in the help topic.



    Note that you can also test the application without the internal properties, methods and fields - it is just more convenient when more functionality is available to TestComplete.
  • dodes_po's avatar
    dodes_po
    Occasional Contributor
    15 years ago
    Thanks for reply,

    No I don't see the icon as stated in help topic. Yes I know I can use TC without internal properties but I want to try some script code which uses public interface of wxWidgets objects. I think something is wrong with debug symbols reading.



    I've compiled sample application from wxWidgets and can post it to you if you want example which demonstrate the problem (Cannot attach it there because .zip has about 13 MB and allowed size is only 10).



    Thanks



    Dodes
  • dodes_po's avatar
    dodes_po
    Occasional Contributor
    15 years ago
    Hey,

    I've read the manual about plugins. Will it be possible to make a wxWidgets plugin same as MFC or Qt one? With this approach I'll be able to support any wxWidgets based classes. But in manual you can find:



    Creating plug-ins that support third-party Win32, Java, Qt and other controls
    is currently not available.



    But how are Qt, MFC plugins created then?



    Thanks



    Trigve
  • AlexeyKolosov's avatar
    AlexeyKolosov
    Staff
    15 years ago

    Hi Dodes,







    Will it be possible to make a wxWidgets plugin same as MFC or Qt one?



    No. Currently, you can only create .NET and WPF control support modules.







    I've compiled sample application from wxWidgets and can post it to you if you want example which demonstrate the problem (Cannot attach it there because .zip has about 13 MB and allowed size is only 10).



    Please send the file to us via our Contact Support form (http://www.automatedqa.com/support/message).


  • dodes_po's avatar
    dodes_po
    Occasional Contributor
    15 years ago
    Hey Allen,



    >> Will it be possible to make a wxWidgets plugin same as MFC or Qt one?


    > No. Currently, you can only create .NET and WPF control support modules.



    Is there any plan in future (near? :)) to support also other controls than .NET one? Or is there some other way to add custom wxWidgets control support?



    > Please send the file to us via our Contact Support form (http://www.automatedqa.com/support/message).




    Done



    Thanks



    Dodes
  • AlexeyKolosov's avatar
    AlexeyKolosov
    Staff
    15 years ago

    Hi Dodes,







    Is there any plan in future (near? :)) to support also other controls than .NET one?



    I've registered your request in our DB as a suggestion, however I cannot guarantee that the feature will be implemented and there is nothing I can tell you for sure regarding such plans.







    Or is there some other way to add custom wxWidgets control support?



    There is no other way.