I have an android application in QT. I would like to call android settings from a button. I used this code in Java : public void usb(View v){ Intent intent = new Intent(); intent.setClassNam...

I developped an application in C++ using Qt for the graphic interface and now I would like to release it for linux and for Windows. I've been looking through documentation, forums and tutorials but...

I can't seem to keep the horizontal header from being selected when I select a single row in a QTableWidget. Example: How can I prevent the header from being selected too? This only happens whe...

I am creating desktop application using QML and QtQuick.Components. I want to place on the toolbar buttons like the standard MacOS settings dialogs do: I use ToolBar and ToolButton, but I can't f...

I would like to add some type of validation to my QInputDialog. I use the input of the dialog to create a file system path. So I would like to exclude characters such as @$#%^&*() but keep - an...

I've following issue. I'm tring to use native mechanism build in CMake for cross compilation. I prepared following toolchain.cmake file: set(CMAKE_SYSTEM_NAME Linux) set(CMAKE_SYSTEM_PROCESSOR arm...

Let me use an example to explain the issue. If we have a TextField like this, TextField { text: "0.0" validator: DoubleValidator { bottom: -359.9; top: 359.9; decimals: 1; notation: DoubleVa...

I have a QTreeWidget with a column filled with some numbers, how can I sort them? If I use setSortingEnabled(true); I can sort correctly only strings, so my column is sorted: 1 10 100 2 20 2...

I'm having a problem with Qt Deployment: After a windeployqt App.exe, it returns Adding Qt5Svg for qsvgicond.dll Direct dependencies: Qt5Core Qt5Gui Qt5SerialPort Qt5Widgets All dependencies : Qt5C...

I'm trying to set the horizontal and vertical headers in QTableView to word wrap but without any success. I want to set all columns to be the same width (including the vertical header), and those ...

With the following code, I get an error ('PySide.QtCore.Signal' object has no attribute 'emit') when trying to emit a signal: #!/usr/bin/env python from PySide import QtCore class TestSignalClas...

I posted a question a while ago asking about Tkinter backends and subsequently forgot about it but I've since realised that I'm using the pyqt backend. Is there a fix for that? Original Question:...

I'm using Qt on Ubuntu 20.04.6 LTS. I received a notification about a Qt update, so I updated Qt. After that, whenever I try to open Qt Creator, I get this error: from 6.5.0, xcb-cursor0 or libxcb-...

Goal My goal is to have a QTableWidget in which the user can drag/drop rows internally. That is, the user can drag and drop one entire row, moving it up or down in the table to a different locatio...

I am trying to create a GUI in QTCreator using Python but whenever I try to edit the code on a button I get the following error. I have tried rebuilding the project multiple times and I am still...

I need a bit of advice from you developers who deal with cross-platform applications (specifically programs with a GUI). I will be creating an application soon that needs to be cross-platform and ...

I'm trying to add an application icon to an application I'm writing, following what is described in https://doc.qt.io/qt-5/appicon.html I'm using Qt Desktop 5.15.2 (64) and 6.1.2 (64) for both MinG...

Trying to follow the install instructions from a GitHub page: https://github.com/TASEmulators/fceux I went through with installing Qt6 and when I do the following this happens: mkdir build cd build...

I am using QFileSystemModel along with QListView, and I want the first item shown by the model to get selected by default. How I do that every time I click an item ?

Is it possible to put multiple lines of text in one row of QTableWidget?

How do I change specific colors in a pixmap? For example, I have a pixmap with white and black pixels, and I want to change all white pixels to blue, but leave the black ones alone. Or maybe change...

I am using Qt on Ubuntu. When I debug I only see the very first value of the array in Locals and Watchers. How can I view all the array contents? struct node { int *keys; void **pointers; int n...

I'm trying to make an app where you can draw with your finger on a canvas. To achieve this, I'm subclassing QWidget as MFCanvas, registered the class in QML with qmlRegisterType<>(), implemen...

Here is my setup: A background process that keeps running and does it's job. A launcher which launches the aforementioned process and monitors it, relaunches it if crashed or killed. I wish to...

I need to display QLineEdit with "Browse" button at my form. When user clicks button, QFileDialog should be opened, and so on. This is pretty common thing, but I can't find ready-made solution for...