Qt 6

@JonB
Thank you Jon !

Thanks for giving this additional valuable reply....

@Axel-Spoerl
Thanks Axel !

Thank you very much for your valuable reply !

@JonB said in Issues with the new Qt version using the older compiler:

I don't know what "imported the old Q5.5.0 compiler into Qt6.6.2" means

I expect the latter to be QtCreator.

What I find more interesting is the mention of 5.5
That release was tagged June 2015

@SGaist thanks! It could be a good solution but for a while I don't know how to build external libraries for Android and WebAssembly. I want to be able to make build executables of my applications for Android, Desktop, and WebAssembly. It is why I like Qt very much because it has built-in libraries for parsing XML, JSON, drawing with build-in OpenGL ES, and WebSockets library to make multiplayer game clients for Android, Desktop, and Web. I want to host Node.js game servers with physics engine on free hosting render.com I don't have time to study how to build external libraries for Android and WebAssembly. I only know how to build OpenAL-Soft for Android to play 3D sounds and how to call Web Audio API from WebAssembly.

@tunga had you solved the problem? Just for an experiment try to use jdk-17 and try to make these steps:

set an another path for Android SDK location (create a new folder for Android SDK) try to press Set Up SDK and Open Android SDK download URL buttons:

bdabc7e6-78b4-4a1c-a519-cb69277769e4-image.png

@SGaist
I set QMAKE_RPATHDIR += /usr/local/lib in pro file.
Thanks for your reply and help.
Have a nice day.

@DesiVideoGamer don't know about "like qt5" but do look at the flickDeceleration property.

Edit; I personally prefer it at something like 3000

@devil_coder said in Different behavior in Qt5 and Qt6 with respect to QML files:

Specifically, behavioral difference when clicked was the main reason why I am suspecting z order can be causing the issue.

As you have the code, and we don't. Please confirm that by playing with the z index in that qml.

Please report back your findings.

@mercotui Thankyou! This worked for me aswell

@JoeCFD
Thanks for your reply and help.
I did what you mentioned, but it was failed.

Have a nice day.

@JonB

Last edit my code :

DataReceiver::DataReceiver(QObject *parent) : QObject{parent} { _manager.setAutoDeleteReplies(true); } void DataReceiver::start() { _connection++; if(_connection > 1) return; _takeData = true; run(); } void DataReceiver::stop() { _takeData = false; _connection = 0; _data.clear(); } void DataReceiver::getData() { _data.clear(); QString url = QString("http://localhost:%1/sample").arg(_port); QUrl _apiUrl(url); QNetworkRequest _request(_apiUrl); _reply = _manager.get(_request); connect(_reply, &QNetworkReply::readyRead, this, &DataReceiver::onReadReady); connect(_reply, &QNetworkReply::finished, this, &DataReceiver::onFinished); } void DataReceiver::run() { if(!_takeData) return; getData(); } void DataReceiver::onReadReady() { _data += _reply->readAll(); } void DataReceiver::onFinished() { emit sendData(_data); run(); }

its working. time slow down from 65ms to 165ms but its working.

@JonB
Thanks I'll read the link and ask if I don't understand!

@Yattara Next time please ensure that your example really allows to reproduce your issue. Here boutonSlot will never be called because it's not called from anywhere. Also, your FenetreSimple widget is never shown.

Anyway, here is a small example that works with a complex signal.

import sys from PyQt6.QtWidgets import QApplication from PyQt6.QtWidgets import QPushButton from PyQt6.QtWidgets import QHBoxLayout from PyQt6.QtWidgets import QWidget from PyQt6.QtCore import pyqtSignal class Widget(QWidget): complex_signal = pyqtSignal(int, list, str) def __init__(self, parent=None): super().__init__(parent) button = QPushButton("Test me") layout = QHBoxLayout(self) layout.addWidget(button) button.clicked.connect(self.on_clicked) self.complex_signal.connect(self.on_complex_signal) def on_clicked(self, checked=False): self.complex_signal.emit(2, [1, 2, 3], 'Hello') def on_complex_signal(self, *args): for idx, item in enumerate(args): print(idx, item) if __name__ == '__main__': application = QApplication(sys.argv) widget = Widget() widget.show() sys.exit(application.exec())

@Mammad
If you want to do it in code use QHoverEvent.
If you want to do it in stylesheet (no code) use :hover pseudo-state.

@jsulm Thank you for your assistance :D

@jsulm
Hi,
Thanks for your reply and help.
I found a solution like this, https://copyprogramming.com/howto/detected-new-usb-device-connected-disconnected-on-qt
I made a class and when I plug/unplug my USB camera, there can receive WM_DEVICECHANGE in my class.
I will also try what I mentioned in my library.
Have a nice day.