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Recent Unanswered Threads

(PyQt) QSortFilterProxyModel very slow when sorting
Today 13:44 by TheGrudge

PyQt5 5.15.2 Raspberry Pi issues
12th January 2021 19:21 by shift838

Issue when passing a pointer to a SLOT from a SIGNAL with QObject::connect
9th January 2021 14:07 by teodor

display multimedia camera in QT3D
7th January 2021 03:26 by FCT77

How to change the selected row's color in TreeView of QML?
5th January 2021 15:10 by TheIndependentAquarius

Custom Plot Picker Design
24th December 2020 04:58 by bgorkhe

When searching all files in project don't include binaries (e.g. .exe)
22nd December 2020 19:04 by spike6479

Qt finding header files
19th December 2020 10:56 by everettebola

Remove tab in event not thread safe? Having an assert making the app crashing.
12th December 2020 19:08 by Alundra

QPalette::PlaceholderText in stylesheet?
11th December 2020 01:41 by Alundra
Recent Forum Posts

Re: New window doesn't open even though I initialize QMainWindow parent class

There is too much code there to spend the time to understand it all. However, both of your top-level window classes seem to be derived from QMainWindow (which is strange), and you have another...
d_stranz Today, 22:31

New window doesn't open even though I initialize QMainWindow parent class

Hello there!

I'm currently working on a project for my resumé that is supposed to be a GUI based login system. It's been going pretty well until now. I want to open a new window for the LoggedIn...
Cheems Today, 21:11

(PyQt) QSortFilterProxyModel very slow when sorting

Hi, I have a table with two columns and approx. 50.000 rows of data. When I use the QSortFilterProxyModel, sorting is painfully slow.
I implemented a test model with one column and 500.000 string...
TheGrudge Today, 13:44

Re: The problem of paint() function in Qgraphicsitem?

I have no idea what you mean by "draw the process".

What do you expect? You apparently have two images, each of them with 100 million pixels, and you are using an interpreted language to draw...
d_stranz 14th January 2021, 21:43

The problem of paint() function in Qgraphicsitem?

I want to make a function of drawing image content after pressing the mouse. You can draw color and transparent channels

1:The painter parameter in the paint() function can only display images,...
tom_1 14th January 2021, 16:36

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