General and Desktop

@SOrton said in QVarient outputting bogus data: int values[7] = {1,2,3,4}; //may not be these numbers but will be 4 single digit numbers. this is still wrong - there are only 4 numbers so it should be values[4]... And here the simple version of your code: values[4] = {1, 2, 3, 4} QString output; for (int val : values) output += QString::number(val) + ','; --> output = "1,2,3,4"

@Dummie1138 said: All I want from this class is something that looks like a QMessageBox Then just use QMessageBox, e.g. QString title = "Friendly title"; QString text = "Password incorrect!"; QMessageBox box(QMessageBox::NoIcon, title, text, QMessageBox::Ok); box.findChild<QDialogButtonBox*>()->setCenterButtons(true); box.exec(); Btw. message box button placement in a QMessageBox conforms to platform guidelines. It's usually not a good idea to break them.

Do you use some kind of css styling? A QMenu normally looks like this: https://doc.qt.io/qt-6/qmenu.html#details - yours looks strange.

@SGaist this script is doing auto mount of pendrive but unmount of pendrive not working. so i have decided to use mount and umount on triggering usb drive using ls -l /dev/sd* and then mount this device on media dir and then do umount on successful copy of file to pendrive

@SOrton said in Passing a vector as function argument: QVector<double> x(temp),y(temp); How can I place this into a functions paramater definition?: void MainWindow::plotGraph(int selectedIndex, QVector<double> x,y) Ok First thing. You need to create a "using" or "typedef" declaration for your container, as an alias when refering to the type later in your code using MY_VEC = QVector<double>; MY_VEC v1(27U); MY_VEC v2 = { 0.0, 1.0, 37.555 }; void someFunction(MY_VEC& v) { v.clear(); } someFunction(v2); Finally, don't put multiple variable declarations on the same line. It's considered bad form by most modern coding standards.

Hi, I worked it out :) I replaced QToolBar and subclassed QToolButton and now I have a toolbar, where you can reference a button by position and replace the action without changing attached shortcut. That works together with my variant of a statemachine. See github StateMachine with branch dynamic_toolbar

@Aeroplane123 said in serialPort.read() is reading old data: a buffer, how can I clear the buffer first and just put the received data into the buffer? If so how do I clear the buffer before reading? You can simply read all data after you opened the device but don't think this will solve your problem - you have to find the start of your data by yourself. You still want a dedicated protocol to clearly distinguish the single commands/data from each other.

Why do you hijack an old thread instead creating a new one with your specific problem. Also please provide some code on hwo you send and receive your data in the new thread.

@AnneRanch said in In English - please - pairing Bluetooth QT style.: If you "pair " something - it HAS to involve TWO of whatever is being paired. Uh huh. As for this stream of consciousness: It appears the QT is setting "pairing status with address" I can accept "status WITH address " instead of "status OF address".... BUT 'local device is requesting pairing with what ??? am I wrong when I read "local device will pair with whatever remote device some other code discovered "? I can only guess that you complaining about something related to QBluetoothLocalDevice::requestPairing() This function will pair the local device, i.e. the Qt device, with the specific other Bluetooth device identified by the first argument. This is the two devices involved. Your local device may be able to see many other Bluetooth devices it may pair with. Unless you pair with them they remain just other devices. The btscanner example, that you so love to hate, clearly shows the difference: [image: c4c2e51e-b73e-4569-b463-254c535602ac.png] The phone is paired with my desktop machine. The JBL Flip 5 speaker is not. So, As of now my single local Bluetooth adapter is paired with ALL of mine remote Bluetooth devices. Either you are confusing visible devices with paired devices, or your code has actually paired with every device (by design or logic error).

@mrjj How to add and delete rows in table by clicking spinbox up and down arrow? Please help me through python code.

The list issues both signals because both conditions have occurred (probably also issued currentItemChanged(), currentRowChanged() and itemClicked()). If you only want to act on one then only connect to one. The current item and the current selection are not the same thing in general. You can turn off/adjust tracking the selection with setSelectionMode()

Yes, you are completely right my QVBoxLayout that holds them is called MainLayout. But calling self.MainLayout.setSpacing(0) doesn't do anything. I am not sure if I understood the documentary correctly though, this might not be the right way to call this method. Anyways, i got it to work with the .setContentsMargin(0,0,0,0) method, for anyone who might have the same issue. Thanks a lot for the quick help!

Hello! I have created my own tool called winrtdeploy to copy assets directory and the manifest file from Qt directory. winrtdeploy.exe --source=$$(QTDIR)/bin/assets --destination=$$shell_quote($$DESTDIR) --verbose Now, this issue is resolved. Thank you.

i have the same problem. had same problem for over a year now just running in debugger Qt Creator 9.0.1
* Based on Qt 6.4.0 (Clang 13.0 (Apple), arm64) macOS Ventura on M1 see this bug

@SGaist Hard to understand, but ok I'll try to understand Thanks.

Hi, Two things that stand out: use the function pointer version of connect to use it with a lambda your lambda will just add an empty item to your list widget and leak a QLineEdit object every time you call it.

Hi, If you want absolutely everything, the best is to read qmake's sources.