C++ & Qt

19 January 2026 20:43

Welcome to the group, @alexkarpovlife! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)

C++ & Qt

12 January 2026 11:44

"Potential for consistent income" sounds fabulous.

C++ & Qt

09 January 2026 19:09

I was introduced to the language at university, but I didn’t care much at the time. Later, for work purposes, I discovered something called data-oriented design, and I became extremely passionate about performance, falling in love with the language for how it can be used both safely (with modern standards) and extremely fast

C++ & Qt

09 January 2026 18:59

Welcome to the group, @TpuntoMeSlashUsername! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)

C++ & Qt

09 January 2026 13:50

I play all files from local storage or sdcard. Normal mp4 files are ok (e.g. Big Buck Bunny). But some files are unstable.

The issue is the difference between gst-launch and qt application. gst-launch is able to play the same video without issues. This video has low bitrate and I don't apply any graphics in the qt app.

C++ & Qt

09 January 2026 04:33

convert video to standart mp4 with premiere Pro. if issue is still present then there's nothing you should do. try other decoder lib. the bottleneck is format->decoding it->draw it (even as openGL texture on triangle — does not matter). thing that slows you is "decoding it"\

C++ & Qt

06 January 2026 14:13

You could search the "state of art"

C++ & Qt

06 January 2026 11:12

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C++ & Qt

05 January 2026 13:50

Looking for several responsible people to collaborate with on Bybit! (21+)
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C++ & Qt

31 December 2025 12:33

Welcome to the group, @Santhosh252! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)

C++ & Qt

25 December 2025 09:07

Oh great, this works!!

C++ & Qt

24 December 2025 20:44

Welcome to the group, -! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)

C++ & Qt

24 December 2025 17:01

For the record, setting height in the <img> HTML tag doesn't accomplish anything.

C++ & Qt

24 December 2025 16:36

So solution (a) is the one I'm trying right now with specifying width and height, but I would rather (b) have the widget determine its height. Any insights how to achieve that?

C++ & Qt

24 December 2025 16:34

Happy Holidays everyone! - Question regarding rendering HTML in a QTextBrowser, and determining the required height of the widget.

I render some HTML in a QTextBrowser that inlines some external images (<img src="..."/>). That works fine. My general goal is for the widget to resize itself to its required size, so I set setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContents). However, this does not work - the widget shows a vertical scroll bar.

C++ & Qt

13 January 2026 02:02

Welcome to the group, @Ilya_6483! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)

C++ & Qt

12 January 2026 10:45

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C++ & Qt

09 January 2026 19:04

Hi I sincerely don't know anything about qt. But I'm really passionate about C++. I currently work as a computational geometry developer for a company that does CAD/mesh manipulation for aerodynamic purposes

C++ & Qt

09 January 2026 15:16

https://github.com/operasoftware/gstreamer/blob/master/gstreamer/tools/gst-launch.c

Don't use it, use qt!*

Qt has a lot to offer, sure there's already open source qt player

C++ & Qt

09 January 2026 04:33

btw, qt streamer should be fast

check network/ssd if have to, preload to precache frames at desired quality (as a lot of js video decoders do, many are open-source)

C++ & Qt

09 January 2026 01:02

Hi! I have qt app with gstreamer video player (playbin3, qml6glsink). It runs on linux yocto. gst-launch-1.0 plays video just fine. Qt app has unstable FPS in some videos. I compared pipelines in PDF and they look similar. It happens on the videos with low bitrate.

I'm looking for the guide on how to use qt + gstreamer properly, how to profile performance.

C++ & Qt

06 January 2026 14:12

In github, there have a repo Which provide perfect qt Development docker image for different platforms

C++ & Qt

06 January 2026 10:44

Welcome to the group, @annafischerr! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)

C++ & Qt

03 January 2026 12:55

Welcome to the group, @annyctowl! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)

C++ & Qt

26 December 2025 00:12

Welcome to the group, @Zenooone! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)

C++ & Qt

25 December 2025 00:02

@shimarongreywolf What if you turn the scroll bars off and set setFixedSize to document ().size().toSize() on documentSizeChanged?

C++ & Qt

24 December 2025 17:16

No, this does not work. Thanks anyway. I'll post a solution if I find one.

C++ & Qt

24 December 2025 16:54

Happy holidays!

ChatGPT proposes this (but I haven’t verified):

QTextBrowser *browser = new QTextBrowser(this);
browser->setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContents);
browser->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
browser->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

// Important: constrain text width so height can be computed
browser->document()->setTextWidth(browser->viewport()->width());

// React when images change the document size
connect(browser->document()->documentLayout(),
&QAbstractTextDocumentLayout::documentSizeChanged,
browser,
[browser](const QSizeF &) {
browser->updateGeometry(); // notify layout system
});

C++ & Qt

24 December 2025 16:35

My guess is that this is due to the image being inlined and no width/height being specified.

C++ & Qt

24 December 2025 16:12

Welcome to the group, -! :-)

Wanna share your story of how you started with Qt, QML or C++? Maybe some nice feature that made you stick with it.
Rules are set on the description of the group. :)