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347 questions
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Score of 0
0 answers
44 views

I'm running a QWidget in python using an extended version of the following code: class MyWidget(QWidget): def __init__(self): super().__init__() self.timer = QTimer(self) ...
Score of 1
0 answers
136 views

I am working on a PyQt5 application where I need to perform periodic tasks. I've come across two primary approaches: Using time.sleep() or QThread.msleep() in a subclass of QThread. Using QTimer. ...
Score of -1
1 answer
322 views

I'm developing a PyQt6 app that plots data from a measurement instrument and something else related to user input, and I'm experiencing outstanding lags when I run it on Windows vs on the WSL (Windows ...
Score of 0
0 answers
46 views

I have 5 different popup's that displays 5 different properties all these 5 properties need to be checked periodically from CPP in order to update if there is any change in the value of property. At ...
Score of 0
1 answer
190 views

I'm developing a PyQt6 application that deals with real-time acquisition of photon intensity tracking over time and plots it in real-time, before calling a pyo3 function for post-processing on the ...
Score of 0
1 answer
159 views

Background: In our Embedded QT application(based on ARM processor), there is a Qtimer which will timeout for every 20ms. Updating the user interface objects is done inside the timeout handler of this ...
Score of 0
1 answer
150 views

I am experiencing issues where block of data written into a socket within a QTimer in a server application ,which can't be read by the client completely because the client's read process is slow, so ...
Score of 0
1 answer
148 views

I'm trying to run multiple timers in one QThread, I expect each timer to be independent. But the final running result is not what I expected. All timers seem to be executed serially. For example, in ...
Score of 4
0 answers
151 views

I wrote a minimal example in which my application crashes. I can't figure out what's wrong. I hope someone has thoughts about the reason for this segfault. if you increase the QTimer timeout, for ...
Score of -2
1 answer
212 views

I have created a simple, single thread, app in Qt6. My sole class creates a couple of timers and prints a qDebug message in the timeout slot. These messages never print. My class is created before ...
Score of 0
1 answer
64 views

In this simulated example I am repeating a task every 1 second using QTimer by implementing a QObject, then move it to a QThead. The simulated task takes 0.5 second. The task runs in a new thread, ...
Score of 3
1 answer
587 views

I’m working on a QT QML and embedded STM32 project where an oven is being controlled by a PC via serial communications. Everything was going great until I tried to add a timed heartbeat signal to let ...
Score of 0
1 answer
269 views

I'm working on implementing a "tutorial mode" on a software that uses C++ and Qt. To this end, I need to rotate a GL view to show the user that it can move. In order to do a smooth rotation, ...
Score of -1
1 answer
138 views

I am trying to put a QTimer inside a QThreadPool. The reason is that I need to count real-time since the start of a process (recording video), but the actual code seems to be lagging a bit and the ...
Score of 0
1 answer
369 views

Suppose a timer is fired every 1 second to execute some task, which is not CPU intensive. What is the resource heaviness of a timer itself? Related to C# perspective: How resource heavy is a Timer? [...

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