In this article, I presented a new client for the great mldonkey service. That client is a WebApp, so it needs to be served by a specific backend. The backend[...]
Apparently, Qt does not provide a way to show local notifications with LGPL license. This is the only thing that I found: Qt Application Manager. So I developed something for[...]
It is sometimes useful to measure the amount of free memory while your app is running. I typically do this to ensure there is no memory leak, for example. Even[...]
I was asked to fix this error that appeared porting a Qt 5 app using qzxing to Qt 6 on Windows: The reason for this error comes from the fact[...]
For one of my projects I had the need of building a Qt app based on Qt 6.4 with a universal distro-agnostic format. In the past, I used snap packages[...]
When writing Qt/QML applications, FontAwesome is frequently handy. Adding it to a Qt/QML app is not different from adding it to apps written with other technologies. You’ll need to download[...]
This error came up when trying to build Qt 6.3 for the Raspberry Pi: This means that the build must also link to libsystemd, so a quick fix is:[...]
When developing software for installations that need to remain up for very long time without being restarted, it is pretty relevant to monitor it to verify it is working properly.[...]
Many devices nowadays come with a notch at the top of the screen. You can clearly avoid drawing where cutouts are placed and ask the system to create a window[...]
Sometimes I need to have specific versions of Qt to build apps and run CI tasks. In this article I introduced what I used for this purpose: a multi-arch docker[...]
I wrote an article about this topic in the past here. However, I had the chance to work more on the topic so this is a follow-up to that article:[...]
When developing products and managing servers I frequently notice that properly formatting and colorizing text, logs and generic output in the terminal is very useful. Errors, warnings and messages are[...]
The old days of OpenMAX and omxplayer are now almost gone. Raspberry Pi has long moved to DRM/KMS and V4L2. Using omxplayer from Qt had the great benefit of reducing[...]
Rendering YUV frames is pretty frequent when it comes to video streams. For instance, frames coming from a camera or frames resulting from the decoding of compressed streams may be[...]
Getting hardware acceleration into Qt eglfs is tricky. Doing so on a Raspberry Pi is, unfortunately, still tricky after many years. Qt claimed to have reimplemented the Qt Multimedia module[...]
It has been some time since Qt 6 was released. Now that Qt 6.2 is almost out, I guess it is time to have a look at how Qt 6[...]
I frequently need to measure the frame rate in a Qt/QML application to have an idea of how heavy the changes I’m making are. In the past, I found two[...]
NOTE: this project now also includes Android builds of Qt. Refer to updated articles to know more. Intro It happens from time to time that I would benefit from having[...]
Calls to HTTP servers are very frequent nowadays, and JSON is frequently used when dealing with structured data. When I write applications in Java/Kotlin, I always use retrofit2 with gson[...]
I frequently create classes that I use as an interface to settings in my apps. Using a single class with accessors makes the code readable, safer and simple to maintain.[...]