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Recent Unanswered Threads

Segmentation Fault when starting Designer
Today 18:35 by newgen

qwtplotspectrocurve
Today 17:20 by BogdanR

PyQt5 GUI running on /dev/fb1 on Raspberry Pi Zero SPI TFT LCD?
Today 16:52 by Trakt0r22

(PyQt5) QDateEdit write date from the keyboard
Today 11:48 by Odium

QWebSocket closeCode not returning expected value
Today 06:26 by 413X

Qt app: Create a shell link to my app with a pixmap as the link icon
Yesterday 13:29 by ddonate

How to properly use the asynchronous libusb?
24th January 2021 18:36 by Andrew23

QPSQL unable to COPY large files
23rd January 2021 18:48 by dehm

Qt Creator can't locate Qwt plugin
18th January 2021 09:24 by trouden

(PyQt) QSortFilterProxyModel very slow when sorting
17th January 2021 13:44 by TheGrudge
Recent Forum Posts

Segmentation Fault when starting Designer

When starting the designer, I suddenly get a segmentation fault and the designer is dead.
Console output:

user@host:~$ designer
QPainter::begin: Paint device returned engine == 0, type: 2...
newgen Today, 18:35

qwtplotspectrocurve

Hello, dear developers and users qt.

I use class QwtPlotSpectroCurve (https://qwt.sourceforge.io/class_qwt_plot_spectro_curve.html) to draw 3D plot where z-coordinate is a color. It is needed to...
BogdanR Today, 17:20

PyQt5 GUI running on /dev/fb1 on Raspberry Pi Zero SPI TFT LCD?

Hello all.

I've been working with PyQt5 for a bit over a year now. I've been wanting to deploy and run my Python-gui on my Raspberry pi Zero W with an SPI TFT LCD screen for some time now and I'm...
Trakt0r22 Today, 16:52

Re: QSlider Iteration Misses Sample Data on QCustomPlot

You keep referring to QSlider, but your code indicates a horizontal scrollbar. Which is it?
d_stranz Today, 16:21

Re: QImage bytesize

Hi, just a guess: maybe your original file is compressed (jpg or something like that), while QImage stores a raw representation of the pixels? What size does your image have (width x height)?
...
Ginsengelf Today, 15:47

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