3rd Party Software

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  • Mar_60  

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  • artwaw  

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  SOLVED Link Qt program with DLLs
  • Tiago M.Pinto  

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  @Tiago-M-Pinto said in Link Qt program with DLLs: Could it be a compiler version issue? @sierdzio already told you that only msvc2017 and 2019 are binary compatible. So recompile your lib with 2107 or 2019 and see if it still crashes - if it is the case take a look at the backtrace to see what goes wrong.
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  UNSOLVED SQLite database locked on localstorage example
  • filipdns  

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  @filipdns said in SQLite database locked on localstorage example: Following documentation, js transactions are suppose to automatically close db. Why do you work on DB in JavaScript/QML? I think it will made more sense to do the DB work on C++ side and implement a QML/C++ interface to access to the data. JS/QML is powerful to create/handle user interface, but to work with data C++ is the better choice!
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  SOLVED Qwt plot inside QDialog inside QWidget?
  qwidget qdialog qwt parent • • pauledd  

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  ok, stupid me! I forgot to include Qwt in the *.pro file: ... CONFIG += qwt INCLUDEPATH +="/usr/include/qwt" LIBS += -L/usr/lib -lqwt
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  UNSOLVED Build QtOpcUa with open62541 and encryption support
  • niodo  

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  Hi and welcome to devnet, Please don't post the same question in multiple sub forums. Moderators can move them if needed. Closing this one as duplicate
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  UNSOLVED Boost Unit Test Problems
  boost • • Conical  

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  @Conical The INCLUDEPATH seems to be correct. At least what you are showing. I do not know the test library feature of boost. However, I know that some features require separate compilation which will create libraries. This would be for the regular expression of boost for instance. Those libraries need to be referenced with LIBS statement. https://doc.qt.io/qt-5/qmake-variable-reference.html#libs
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  SOLVED unable to use function MATCH in the requested context SQLite?
  • filipdns  

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  @JonB Hello, Yes I just found what you say and solve with: SELECT * FROM remainPartList_log WHERE part LIKE '%art%' thank you very much
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  UNSOLVED Performance Analysis Tool for Qt on Windows
  • Laurent Schall  

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  Do you use Visual Studio as compiler? That environment has such a tool embedded
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  UNSOLVED Openldap connector for Qt in particular or Cpp in general......
  • alamahant  

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  Hi, No there's not. You can use the OpenLDAP library to interact your your LDAP server. At some point, there was the Luma GUI application.
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  SOLVED QT and Matlab
  • alberto.brunero  

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  @aha_1980 said in QT and Matlab: @jsulm said in QT and Matlab: @alberto-brunero To add to @SGaist : on Windows LIBS syntax is different: LIBS += "C:/Program Files/MATLAB/R2019b/extern/lib/win64/mingw64/libeng.lib" That is not true. The correct way is to use -L... -l... on Windows too, as Creator then sets up the library search path for you. Also, you should use / instead of \ in pro files, even on Windows. I fully agree to that. Also, by all means avoid spaces in paths. Agree with @aha_1980 about -L..., -l..., and / on Windows. Spaces in LIBS are quite safe though; just wrap the path in double quotes: LIBS += \ -L"C:/Program Files/MATLAB/R2019b/extern/lib/win64/mingw64/" -llibeng
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  UNSOLVED Unresolved external symbol _strerror_r error while executing libcurl with QT
  • Ace04  

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  @Ace04 said in Unresolved external symbol _strerror_r error while executing libcurl with QT: LIBS += -L"$$PRO_FILE_PWD/dependencies/SSL/lib/" libcrypto.a libssl.a Your LIBS lines are wrong. Correct would be: LIBS += -L"$$_PRO_FILE_PWD_/dependencies/SSL/lib" -lcrypto -lssl (Add -l, omit lib... and .a. Also, convert all backslashes to forward slashes. Also, remove all trailing slashes from the paths (INCLUDEPATH and LIBS) Regards.
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  UNSOLVED How to build fbx geometry loader ?
  • MaximeTouchline  

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  There should also be a folder with the tests that ran. That's the one I am suggesting to check. Note that there seems to be some mixing of forward and backward slash which might explain the failure. Use all forward slashes when giving parameters.
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  UNSOLVED C1075 error reading tlh file
  • Mike10  

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  @aha_1980 Unfortunately WinCC OA 3.15 requires no later than QT 5.5.1, MSVC 2013 and Win 64bit I have downloaded a different file from https://download.qt.io/archive/qt/5.5/5.5.1/ and that does indeed seem to have resolved the compilation issue :) I am now getting an error at runtime but could be something daft so I will look into more. Thanks
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  UNSOLVED GoogleTest: Mock object should be deleted but never is.
  • henrik2016  

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  @jsulm I already use MockOpcConf _selectedConfValid; But I have got the other objects.
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  SOLVED Qt with PCL 1.9 +
  • aditya369007  

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  Sorry for the post. It seems that my CMakeLists was wrong and hence the building of my program was failing.
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  UNSOLVED Qt OPC UA Open62541-Standalone Application
  • henrik2016  

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  In addition to the Qt libraries, I have got Qt5OpcUa.dll and open62541_backend.dll, but it won't work.
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  SOLVED #include <QuickQanava>: file not found 😄
  • enjoysmath  

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  Fix this by copy / pasting a sample project into QuickQanava root after forking QuickQanava on GitHub. Rename the .pro, .pro.user and the folder. In the .pro file, put in the new path to the apparent .pri file. It builds and runs now.
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  UNSOLVED CMake does not link doctest to std library
  • JoeA.B  

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  UNSOLVED Compile eror GammaRay 2.11.50 for qt 5.14 on Windows10
  • dapa  

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  @Christian-Ehrlicher Thanks for your reply. I have used a newly installed machine with only qt 5.14 compiled, and I did not change any source code so it is strange if I by error have somehow included any Qt4 headers. I see that the build also fails at https://github.com/KDAB/GammaRay (ERROR: could not open HSTS store at 'C:\Users\appveyor/.wget-hsts') but I guess this is unrelated. Best Daniel
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  SOLVED Set to never run
  • EdTarlington  

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  I understand your frustration but there's nothing we can do here. Qt just provides tools. Someone just made a poor use of them. I'm a game engine programmer myself so I can tell you that it can be hard to diagnose these types of issues and it is often hard to even know they exist. It might be a bug, bad network design or a simple case of "works on my machine". Sometimes it's an entirely different team that makes a crappy launcher for otherwise good game or vice versa. Try to contact the creators. Developers often don't read forums but there's a lot of them on social media like twitter or reddit. Just be polite and keep your head cool. They're people too. Try to imagine how you'd like to be approached when something you made doesn't work for somebody ;)
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  UNSOLVED fontawesome for android device
  • ramcho  

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  This topic is deleted!
  • foxs  

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  UNSOLVED Problem connecting to pylon(basler) camera
  • Pal_ani  

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  Have you solved this problem yet? I had the same problem. I'm trying to add environment variables,but have no use. C:\ProgramData\GenICam\xml\cache is path.
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  UNSOLVED Integrating drone pictures into qt map
  • sakspapir  

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  Hi and welcome to devnet, You should take a look at the QtPositioning and the QtLocation modules.
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  UNSOLVED How to Integrate CERN ROOT into QWidget or QMainWindow?
  • ayanb07  

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  Hi and welcome to devnet, That's a question better asked to the CERN folks.
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  SOLVED PostgreSQL event notification with payload
  • Ucn_  

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  I solved by creating a stored procedure then passing the values to a json object. Created a trigger on Insert then execute the procedure. In my app it detects the source with switch case. I followed some examples and implemented to my needs.
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  UNSOLVED Is there a tool that can auto-gen the call relationships ?
  • lee64456546  

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  @lee64456546 Have you tried Doxygen?
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  UNSOLVED Regarding how to verify register addresses
  • AnuReddy  

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  Hi all, Someone please reply to this query.....still I'm not getting the result.
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  UNSOLVED How to replace number scale with text scale in qwtplot?
  • npatil15  

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  SOLVED Crash in grpc using QT
  • InfovistaJanne  

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  The problem was solved by changing the tread to pthread
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  SOLVED Is it possible to use 3rd party libraries in Qt applications without install the library to the local machine?
  • atreidex  

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  @atreidex, yeah, that will work if the compiler is compatible. After all, the Qt libraries you use are also build on another system then yours... Regards
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  UNSOLVED QT5 + BGFX integration
  • Petr Petrov  

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  UNSOLVED How to include a COM tlb library in my C++ project
  • AhmedAlshawi  

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  It's telling that the majority of the code examples in that PDF are in Visual Basic, and C++ is treated as a 2nd class citizen in it :-( The 2nd method (dumpcpp with only an .h) is at least technology from this century so I understand why you prefer it. Try to see if there's a pattern to the SEG faults, perhaps there's some extra initialization you need to do due to that missing staticMetaObject. The IDispatch errors are a symptom of inconsistencies in the .tlb file but are glossed over by Visual Basic and C#, but I think they can be fixed with some type coercing, e.g. static_cast<IDispatch*>(ptr) Good luck! P.S. There might actually be a 4th alternative, especially if you're only using a subset of that Robot library: write a "wrapper" COM .dll in C#, I think it's called a CCW (Com Callable Wraper) that exports the stuff you want in a more modern way, which then can be consumed by Qt C++.
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  UNSOLVED PBSTableView - QTableView with many extension
  • Cuneyt ELiBOL  

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  Yep, you should include that in the repository as well as the copyright statements of those libraries. KDE is GPL so not much more to do
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  SOLVED QCA for file encryption
  • Deedss  

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  @Deedss thank you for sharing. In the end you went for symmetric encryption though. Just in case, here's a reference to SimpleCrypt I found.
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  SOLVED Console application falls if I start it from Creator, but works when i just open .exe
  • BrMisha  

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  WOW!!! In pro i set links to dll and now i can start from creator)))
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  SOLVED Pylon in Qt compilation issues
  • hodahle  

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  Side note for posterity, but I think I found a way to go about it which works better for me and doesn't involve messing around with MSVC. For whatever reason, downloading the full Pylon SDK package with the viewer and everything doesn't work very well for me and doesn't let the cameras be recognised as such by my device. However, if I use only a runtime (I used v5.2, but you could probably use a different one too), it works and gets recognised. QCamera now also recognises the camera, though it fails to set proper viewfinder settings and therefore doesn't work. It also finds 4 cameras instead of just one, which I think is a quirk of the driver or something, since OpenCV does the same thing. I would prefer to do everything with Qt and not be dependent on any external framework, so if there's any pointers on how to set proper viewfinder settings that would be much appreciated, but for now this is fine. What works and does recognise the camera while reading properly from the camera is OpenCV. In order to be used with MinGW, it has to be made from source with make, but I've managed to make it work on my machine. I followed this guide on the subject, and it worked for me after restarting. Anyway, I finally have something I can work on again, and I'll consider this question solved. Thanks for the help.
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  SOLVED Concatenating Strings into a Prepared SQLite3 Query
  • scrand  

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  @SGaist, Ok, I think I get where you're both going now. I should have a Database handler class with separate queries for reading and writing each table. No need to over-complicate it by trying to abstract the queries themselves. If I'm honest with myself, I'm probably trying to do that because SQL is like that cute girl in high school who intimidates you a little bit. You're a little afraid to talk to her, and if you do work up the courage, you want to get as much done in that one conversation as possible. :-)
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  UNSOLVED Zlib library error | undefinied reference to
  • Bondrusiek  

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  @bondrusiek said in Zlib library error | undefinied reference to: when I use function from zlib like gzopen Compilator gives error message: undefined reference to 'gzopen' It's the linker complaining indeed... Are you sure you have the shared object for Qt zlib library available? How do you install Qt framework? Is it configured for -qt-zlib? See documentation regarding 3rd party libraries