3rd Party Software

Hi, Please provide a minimal compilable example that shows the situation.

Hi, Did you check the BACnet developer aids ? There's a list there of implementation for different languages including C.

Hi and welcome to devnet, Did you build that software yourself ? Where did you get the sources from ? Which version of Qt are you using ? How did you install it ?

@jsulm @Christian-Ehrlicher Well, my code doesn't work after but I'll figure it out later. I can say that the linking works properly now. Thanks for your help guys!

According to Qt documentation you can integrate your qml in UE: https://doc-snapshots.qt.io/qt6-dev/qquickgraphicsconfiguration.html#configuration-for-external-rendering-engines-or-xr-apis

@horizonQt i fixed it. look at qwt-6.1.6/playground/curvetracker . I hope it helps

@jsulm https://microseismic.cn/use-qwt-library-in-qt-to-display-seismic-waveforms.html ı follow this and ı solved thanks

@SGaist ı solved thanks

@Cedric-air No, that shows it is not optional, it shows that you should not be trying to alter itemInfo in the signal/slot. But your commented out/erroneous code was trying to set that visible.

@Chs_QtLearner Please check config.log file to see why Open62541 security was disable (most probably some lib is missing).

@kkoehne ， thanks for your answer , I will do it

I meet same question, but It seems QT5, QOpcUa with Open62541 version 0.3 , not support Open SSL communication. So , now I upgrade to use QT6 ,But I meet another problem "Build QOpcUa issues - https://www.qtcentre.org/threads/72050-QT6-6-QOPCUA-Open62541-Build-issue

@horizonQt I solve it. setAxisAutoScale worked for me

@geus How will we integrate? can you give more info ?

Hi,' Which class would that be ?

@NewUser2023 Please post text not pictures. In your LIBS you use PWD - make sure the path is really valid and check the linker call to see what paths are passed to the linker.

@jsulm I managed to zip/unzip with quazip for Android device. With guidance from @jsulm. Thank you. https://forum.qt.io/topic/151699/how-to-unzip-an-application-running-on-an-android-device-using-qt

The fmt library also has a header-only mode. It is enabled by providing a define FMT_HEADER_ONLY. In this case you don't need to link to the fmt library anymore. The only requirement is then to have the path to the headers in your search path. (BTW, if everything is set up correctly, you most likely have to just write #include "fmt/format.h". The path up to this point should be set up differently.)