3rd Party Software

• 

  Building Qt-GStreamer
  • MichaelR

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  @jward I had rebuild this plugin today and had the same problem. I found that I had to include the GStreamer bin dir in my environment path.
  I added this to my path and cmake configured correctly:
  C:\gstreamer\1.0\x86\bin

• 

  UNSOLVED OpenGL problems
  • Mikeeeeee

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  Continued as https://bugreports.qt.io/browse/QTCREATORBUG-21947

• 

  UNSOLVED Windows COM automation Qt and AutoCAD
  com qaxobject qaxbase dumpcpp tlb • • nadamus

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  @nadamus said in Windows COM automation Qt and AutoCAD:
  ..
  Now it works, but sill I wonder why it is not working with QList and QVariant.

  I think the culprit is this line:

  *wektor=SafeArrayCreate(VT_R8,1,&granice);

  had it instead been *wektor=SafeArrayCreate(VT_VARIANT,1,&granice); then a QList<QVariant> should've worked.

  Qt's COM support is kind of stuck between a rock (everything is a VARIANT, the Visual Basic COM flavor, functions are called 100% through the IDispatch interface) and a hard place (you can pass native data types like int, doubles etc through COM, the C/C++ COM flavor, functions are called through specialized interfaces based on IUnknown). I remember doing a lot COM coding around the turn of the century, it was really hot then. Nowadays not so much :-)

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  UNSOLVED Matlab in Qt
  • Moeka_Chan

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  @SGaist
  I somehow solved the problem....
  I run qmake.
  Then, it manages to open the include file and run the codes, but it shows many warnings....
  I don't know I must run qmake before run the codes...

• 

  UNSOLVED MediaInfo library
  dll data media • • UnitScan

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  @UnitScan
  seen on the official website (linked in the post you referring to):

  https://mediaarea.net/de/MediaInfo/Download
  https://mediaarea.net/de/MediaInfo/Download/Source
  https://mediaarea.net/de/MediaInfo/Download/Windows
  ...

• 

  UNSOLVED QtDataVisualization - semi-transparent QSurface3DSeries
  • jarex

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  UNSOLVED The sample implementation of QtGstreamer does not work on AGL
  • YOSHIMU

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  While I really like the bindings themselves, the GStreamer folks have updated their Wiki page about it and wrote that they are now unmaintained. However, you have the qmlglsink that you should be able to use.

  You should contact them for more information about it.

• 

  UNSOLVED Tensorflow configuration in Qt creator
  • Gannu Bangalore

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  @JBonilla very nice tutorial!

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  UNSOLVED QZXing on Android and IOS
  • TarasKH

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  Hi,

  You have to add more information:

  What version of Qt ? What version of iOS ? What version of QZXing ? How did you build QZxing ?
• 

  SOLVED QT integration with Azure Pipeline
  • dwilliams

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  @SGaist That's good to know. thx.

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  This topic is deleted!
  • Ashutosh

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  UNSOLVED Can't Run Qt 3D Studio.
  • Ghasem Ramezani

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• 

  UNSOLVED qmake generates unwanted option -lXmu
  • BKBK

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  We have a system with over 1000 Makefiles, many that call others to build the entire system. When the Makefile finds a dot pro file it invokes the qmake then invokes the regular make. I suppose it would be possible to write more scripts to be activated after the qmake is complete and remove said option. It would be much better to stop it at the source. It would be even better if that option were emitted only when needed. We may not be able to obtain that control but I am searching.

• 

  UNSOLVED Cesium.js not load 3D model ?...
  • filipdns

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  This topic is deleted!
  • bfsdyifaj

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  UNSOLVED Getting Qt to work with complex Git Repository
  • ckzaner

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  @ckzaner

  Hi and welcome to devnet forum

  For complex projects with different sub libraries the best approach is using the subdirs template.

• 

  UNSOLVED Qt with OpenSSL AES 256 CBC Encryption
  • Mohammedbie

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  @Mohammedbie said in Qt with OpenSSL AES 256 CBC Encryption:

  EVP_EncryptUpdate

  You should not use fixed size like you are doing. You should read the file you want to encrypt one block after the other. The block might be at most AES_BLOCK_SIZE but could be less because the last one will likely be smaller.

• 

  SOLVED Using OpenGL within QT, novice Linux user
  • BKBK

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  Ok, that worked and I am on my way again.
  Thank you for your time and patience.

• 

  UNSOLVED qt.multimedia.plugins.directshow: Failed to connect the audio sample grabber qt 5.11?
  • filipdns

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  @SGaist I will do that, thanks a lot for your help

• 

  UNSOLVED Installing KArchive on QT 5.11.2 (MSVC 2015)
  • RobinQT

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  cmake not found is normal in the VS command prompt. You can use the full path to the executable to run it.

• 

  UNSOLVED how to drag and drop of a QwtPlotCurve inside the QwtPlotCanvas?
  qwt • • thippu

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• 

  SOLVED Deploying 3rdparty Qt Quick plugins on macOS
  • Ilya Bizyaev

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  If needed earlier, macdeployqt can be manually built from the dev branch.

• 

  SOLVED Can you help me to find "curvetracker" Qwt example in the source folder?
  • thippu

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  @uwer Thank you.

• 

  SOLVED Port QtQuick (desktop) application on Android (what about 3rd party libs ?)
  • LeLev

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  Thank you @sierdzio !

• 

  UNSOLVED Can’t Install QuaZip / zLib on QT 5.11.2 (MSVC 2015, 32 bit)
  • RobinQT

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  So, the issues was me using special quotes instead of the normal one. It does find zlib.lib now but I get the following errors still: https://pastebin.com/8WZpi2aH

  quaadler32.obj:-1: error: LNK2019: unresolved external symbol adler32 referenced in function "public: __cdecl QuaAdler32::QuaAdler32(void)" (??0QuaAdler32@@QEAA@XZ) quacrc32.obj:-1: error: LNK2019: unresolved external symbol crc32 referenced in function "public: __cdecl QuaCrc32::QuaCrc32(void)" (??0QuaCrc32@@QEAA@XZ) unzip.obj:-1: error: LNK2001: unresolved external symbol crc32 zip.obj:-1: error: LNK2001: unresolved external symbol crc32 quagzipfile.obj:-1: error: LNK2019: unresolved external symbol gzdopen referenced in function "private: bool __cdecl QuaGzipFilePrivate::open<int>(int,class QFlags<enum QIODevice::OpenModeFlag>,class QString &)" (??$open@H@QuaGzipFilePrivate@@AEAA_NHV?$QFlags@W4OpenModeFlag@QIODevice@@@@AEAVQString@@@Z) quagzipfile.obj:-1: error: LNK2019: unresolved external symbol gzread referenced in function "protected: virtual __int64 __cdecl QuaGzipFile::readData(char *,__int64)" (?readData@QuaGzipFile@@MEAA_JPEAD_J@Z) quagzipfile.obj:-1: error: LNK2019: unresolved external symbol gzwrite referenced in function "protected: virtual __int64 __cdecl QuaGzipFile::writeData(char const *,__int64)" (?writeData@QuaGzipFile@@MEAA_JPEBD_J@Z) quagzipfile.obj:-1: error: LNK2019: unresolved external symbol gzflush referenced in function "public: virtual bool __cdecl QuaGzipFile::flush(void)" (?flush@QuaGzipFile@@UEAA_NXZ) quagzipfile.obj:-1: error: LNK2019: unresolved external symbol gzclose referenced in function "public: virtual __cdecl QuaGzipFile::~QuaGzipFile(void)" (??1QuaGzipFile@@UEAA@XZ) quagzipfile.obj:-1: error: LNK2019: unresolved external symbol gzopen referenced in function "private: bool __cdecl QuaGzipFilePrivate::open<class QString>(class QString,class QFlags<enum QIODevice::OpenModeFlag>,class QString &)" (??$open@VQString@@@QuaGzipFilePrivate@@AEAA_NVQString@@V?$QFlags@W4OpenModeFlag@QIODevice@@@@AEAV1@@Z) quaziodevice.obj:-1: error: LNK2019: unresolved external symbol deflate referenced in function "public: virtual bool __cdecl QuaZIODevice::flush(void)" (?flush@QuaZIODevice@@UEAA_NXZ) zip.obj:-1: error: LNK2001: unresolved external symbol deflate quaziodevice.obj:-1: error: LNK2019: unresolved external symbol deflateEnd referenced in function "public: virtual void __cdecl QuaZIODevice::close(void)" (?close@QuaZIODevice@@UEAAXXZ) zip.obj:-1: error: LNK2001: unresolved external symbol deflateEnd quaziodevice.obj:-1: error: LNK2019: unresolved external symbol inflate referenced in function "protected: virtual __int64 __cdecl QuaZIODevice::readData(char *,__int64)" (?readData@QuaZIODevice@@MEAA_JPEAD_J@Z) unzip.obj:-1: error: LNK2001: unresolved external symbol inflate quaziodevice.obj:-1: error: LNK2019: unresolved external symbol inflateEnd referenced in function "public: virtual void __cdecl QuaZIODevice::close(void)" (?close@QuaZIODevice@@UEAAXXZ) unzip.obj:-1: error: LNK2001: unresolved external symbol inflateEnd quaziodevice.obj:-1: error: LNK2019: unresolved external symbol deflateInit_ referenced in function "public: virtual bool __cdecl QuaZIODevice::open(class QFlags<enum QIODevice::OpenModeFlag>)" (?open@QuaZIODevice@@UEAA_NV?$QFlags@W4OpenModeFlag@QIODevice@@@@@Z) quaziodevice.obj:-1: error: LNK2019: unresolved external symbol inflateInit_ referenced in function "public: virtual bool __cdecl QuaZIODevice::open(class QFlags<enum QIODevice::OpenModeFlag>)" (?open@QuaZIODevice@@UEAA_NV?$QFlags@W4OpenModeFlag@QIODevice@@@@@Z) unzip.obj:-1: error: LNK2019: unresolved external symbol inflateInit2_ referenced in function unzOpenCurrentFile3 unzip.obj:-1: error: LNK2019: unresolved external symbol get_crc_table referenced in function unzOpenCurrentFile3 zip.obj:-1: error: LNK2001: unresolved external symbol get_crc_table zip.obj:-1: error: LNK2019: unresolved external symbol deflateInit2_ referenced in function zipOpenNewFileInZip4_64 release\quazip.dll:-1: error: LNK1120: 17 unresolved externals

  Thank you.

• 

  UNSOLVED no match for 'operator>' error with Qt 5.11.2 and mingw32-5.3.0
  • fortress

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  Hi @fortress,

  your conclusion is good, however neiter MSVC 2015 nor GCC 5.3 are full C++17 capable. So some C++17 features might work, others will not.

  I think I can try to create a simple project that will use <thread> and check how it will be compiled.

  Probably a good idea :)

• 

  UNSOLVED Qt-Gstreamer build, mingw32
  • OldCoder53

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  Hi,

  From the QtGStreamer wiki:

  The QtGStreamer C++ bindings are very out of date and unmaintained.

  For integration with the Qt toolkit there is the qmlglsink element in gst-plugins-bad (soon to be moved to gst->plugins-base or -good) which is a video sink that renders to a QQuickItem in a QML application.

• 

  SOLVED link .a lib -textmagic.a
  • LeLev

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  @aha_1980 So i was trying to use text magic c++ lib to send an SMS from my app,
  but finnaly i used SMSAPI https://www.smsapi.com/fr, it offers possibility to send a SMS only by doing a post or get request like :

  https://api.smsapi.com/sms.do?to=0643566333&message=helloWorld

  of cours you have to subscribe/paye (~5cts / SMS)

• 

  SOLVED Installing Brig
  • LeLev

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  @sierdzio I was not aware, im still not 100% sure

• 

  UNSOLVED Load qgis shapefile in qml
  • filipdns

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  @SGaist inside the git downloaded, I send mail to him, hope will be able to help me soon, thanks a lot to try to help!!

• 

  UNSOLVED CGAL Linking Error QT Creator Project for Windows and Linux
  • username1

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  Jep i did

• 

  This topic is deleted!
  • thippu

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• 

  UNSOLVED wip/win branch qtconnectivity
  • kuncheria_k

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  This topic on the development mailing list.

• 

  SOLVED Bluetooth with Windows ? (Bluetooth Low Energy)
  windows bluetooth bluetooth low e windows 10 iot • • NicoFrom13

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  @NicoFrom13 Hi, Were you able to use this work in progress qtconnectivity? Is it properly working ?

• 

  This topic is deleted!
  • thippu

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• 

  SOLVED Lot of sqlitejdbc.dll Temp directory
  • filipdns

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  @SGaist After all night pc powered without any programs running I found lot of dll created then, qt project is not the origin of them, I close this topic, thank you very much for your help!!!

• 

  UNSOLVED QWT: Semi-Transparent Canvas
  • CodeFreaks

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  Can't anyone help me ?

• 

  SOLVED Is it possible to use Qt4 from VS 2017 using addin 2.2.2?
  • thesourcehim

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  Solved it, I just needed to generate visual studio project file using qmake, addin not even required.
  qmake.exe -tp vc myapp.pro

• 

  SOLVED dll created with qt5 used for mt5(metaquotes5) gives the error "unresolved import function call"
  • guzuomuse

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  @SGaist
  @TobbY

  mank thanks to you both;

  finally, i solved this problem. in fact it's very easy.
  @TobbY is absolutely right.
  just put the dependencies dlls(here the only one Qt5Core.dll) and my dll in the same dir.
  i code the absolute path in the mql5,but left the dependency dll on the mt5's library before. that's not right.
  i'm so stupid! so i should give trust on the qt. it's my fault

• 

  UNSOLVED how to draw qcustomplot
  • Rameshguru

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  @Mark81

  Yes, that was exactly one of the intentions when the sub-forum was proposed to be listed.