Mobile and Embedded

Nmap comes to mind.

Hi, For highly specific platform API, you will have to write some platform specific code. Qt can't cover absolutely everything and it's not its goal. Android is a bit of a special case because of its use of Java. You should take a look at the QtAndroidExtras module and its examples. Note that this is really specific to Android and how it works. There are other extras modules for some often used platform specific stuff that you can take a look at in terms of how things can be done. Note that these modules have been deprecated for Qt 6 in favor of a different approach and integration in a more centralized way.

@LorenDB In practice, uninitialized variables can often have a different value in Debug vs Release builds, and be the cause of misbehaviour in one versus the other. They can be difficult to track down. I believe there are specialized tools to analyze code or do runtime detection for them, don't know if there is anything FOSS.

I want it in line series format,is it possible to plot 2048 pixel plot in line series graph and update with the new values?

Dear jsulm, thank you for your reply and your help with description link. That helped to solve the problem by my own. I replaced m_client->connectToEndpoint(QUrl(url)); by QOpcUaEndpointDescription d; d.setSecurityMode(QOpcUaEndpointDescription::None); d.setSecurityPolicy("http://opcfoundation.org/UA/SecurityPolicy#None"); d.setEndpointUrl("ServerAdress"); //Add your server adress m_client->connectToEndpoint(d);

I think I have a better idea of using threads to monitor network state. The way to do this is to use the above method in the thread and use QTimer.

Post copied from https://www.reddit.com/r/QtFramework/comments/fx6jfu/why_qt_is_so_underrated_among_developers/

alright, just needed to add this in the CMakeLists.txt: include(<path/to/android_openssl/CMakeLists.txt) (cf here) and re-run cmake

@SGaist Yes thanks I can give that a go. I guess it's only on iOS that the dialogs are always going to be fullscreen. I see that word-wrapping is not possible on QRadioButton and QCheckBox https://bugreports.qt.io/browse/QTBUG-5370 so it looks like I'll have to use a custom widget to do that.

@kingsta from time to time this happens for specific android devices. in most cases it helps to restart QtC and also Android device. what's your device and android OS on device ? have you tried to run on a different device ?

the issue gets resolved, I was mistakenly adding the QT += xlsx to qmake project file but it is not required.

I was using QGuiApplication app(argc, argv) instead of QApplication app(argc, argv). That was the problem about chartview. Now i switched to QApplication and i can draw charts on my phone. i learned it from: https://stackoverflow.com/questions/46471805/chartview-crash-when-launching-on-mobile-qt-qml-error I don't get "F libc : Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0 in tid 8306 (qtMainLoopThrea), pid 8277 (org.my_usb)" error anymore. But "W Gralloc3: mapper 3.x is not supported" error remains. Even i built official examples from Qt. But i will ignore it for now.

No warning or error message on the console ?

@Qt-embedded-developer And what is the problem? If your counter is 500ms and you can't change that then trigger the action on every second timeout...

Right now it is possible in QtCreator or VSCode using the Qbs build system. Sorry for this delay. ;)

@JonB this is related to embedded if know then let me know