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Questions tagged [qt]

Qt is a cross-platform application and UI framework for developers using C++ or QML, a CSS & JavaScript like-language. (Also use the [c++] tag for C++ code.)

2 votes
0 answers
38 views

Barebones Qt/QML app that generates a list of dishes and then a shopping list with ingredients

I have written a simple app that generates a menu in the form of a list of recipes. It furthermore generates a shopping list, given a menu, consisting of the (unique) ingredients in the recipes that ...
Michele Bolognini's user avatar
0 votes
1 answer
73 views

Python GUI Based IP location digger

Greetings. I'm a newbie python developer who just started using PyQt5 as his major GUI development tool. Because of this, I have started a side project known as NyvoAI, just for gaining more knowledge ...
KhodeNima's user avatar
  • 399
2 votes
1 answer
65 views

Do a thing with a derived string for a number of strings

I feel this should be possible more concisely, less code repetition, with a loop and a two-dimensional array or something. But not sure how exactly. Any best practice for review? ...
Lecker Kebap's user avatar
2 votes
3 answers
167 views

How to efficiently build an object from list or array of strings

I am working with an API that delivers some data in a QStringList or basically a list of strings. The data contains keys and values but it is not a ...
DEKKER's user avatar
  • 121
5 votes
0 answers
2k views

Qt - Creating a dark overlay to apply on top of other widgets with animation

I want to be able to create a dark overlay on top of other widgets that can be turned on or off with animation. I managed to get this to work. But I think I'm doing it in a wrong and inefficient way; ...
sanab3343's user avatar
3 votes
1 answer
906 views

Real time histogram using multithreading (Qt + Qwt)

I'm writing a GUI for different VME modules (electronics). There are several of them which are used for the data acquisition. For example, an ADC produces the digitized maximum voltage on its input. ...
LRDPRDX's user avatar
  • 831
1 vote
1 answer
350 views

Handle C++ templates in Qt5

Searching for a solution to my problem I've read many posts regarding templates in Qt (including those on SE) and didn't find a complete solution (or I should say a complete example of a solution) so ...
LRDPRDX's user avatar
  • 831
1 vote
1 answer
115 views

Blocking until one or multiple signals is emitted

I've written this little helper function, that will block the current thread until any of a given list of signals is emitted by an object or until an optional timeout is reached. It can be used to ...
perivesta's user avatar
  • 125
8 votes
0 answers
1k views

A simple Qt + MQTT doorbell application

So I built a house recently and didn't want to rely on "privacy-questionnable" systems like Google Home or Amazon whatever so I decided to build a doorbell system myself. Hardware I use a ...
tai's user avatar
  • 181
2 votes
0 answers
319 views

Use OpenSSL and Qt to build the correct X509 certificate chain based on a pool and a leaf

This is my solution to a question I asked on stackoverflow. The scenario is as follows: I got my X509 certificate and a pool of other X509 certificates. Now I want to calculate the chain of trust, ...
Eric's user avatar
  • 245
1 vote
0 answers
498 views

Indicating a lost signal when streaming live video with GStreamer and Qt

The goal of the code is to display a live camera feed sent by GStreamer over UDP, and to give an indication of when the signal is lost by displaying a static blue screen instead of the last frozen ...
Patrick's user avatar
  • 73
1 vote
1 answer
123 views

Concurrent dependant routines in a gui application [closed]

The idea is that, in my application I have 5 routines named long_process_1, long_process_2, ...
Aykhan Hagverdili's user avatar
2 votes
1 answer
2k views

Implementing toggle button using Qt

I have below code for implement toggle button. After including below code, processing power consumed over 90% in my embedded application. Is there any way to reduce this processing power. ...
user3559721's user avatar
3 votes
1 answer
480 views

QTableView implementation

I've put together my first table using Qt's QTableView and a custom data model. Currently, some data is populated on initialisation, and the user has the option of adding and deleting entries. ...
19172281's user avatar
  • 131
0 votes
1 answer
133 views

QCombobox Case selection - Pyside2 Index via Sqlite

I have a very simple file where I have a Qcombobox Filter. When you select the filter, I run through a case on the index and output results. So, on selection I trigger: ...
Sam's user avatar
  • 103

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