@JonB I build a GUI application which instantiates a QApplication in its main(), and a completely different piece of code is used for the command line application which creates a QCoreApplication. So I think that qApp will work in that case?

Hi all. FynePDF is a desktop PDF editor we make. It started as an Electron app, and in October we rewrote it in Qt 6.12 with a Qt Quick UI. The PDF work is C++ on PDFium and qpdf. It's out now on the Microsoft Store, and there's a Linux AppImage. Before and after, on the same Windows PC: Installed size: 601 MB before, 148 MB now Processes: 4 before, 1 now Warm start to the home screen: about 0.6 s Page 1 of a 1 GB PDF: 237 ms It edits, merges, splits, compresses, converts, OCRs, signs and prints PDFs. OCR runs on the CPU with PaddleOCR models on ONNX Runtime. The tools run on your machine and keep working offline. The UI is in 13 languages, right-to-left included. You need a free account, paid plans are optional. The parts that took the longest: getting QML to look the same as the old CSS (gradients, shadows, line heights) a custom title bar that still gives Windows 11 snap layouts a few surprises from the QML ahead-of-time compiler Windows: https://apps.microsoft.com/detail/9NLX6MNF70H2 Linux: https://fynepdf.com/download/linux Happy to go into detail on any of it.

Thanks a lot for all this information. It has helped me get clarity on the questions that have been bugging me for weeks. I can now decide better what I want to do, and why. I will definitely share these with them ideas about unifying the UI for mobile and desktop with Qt, as it seems like it doesn't necessarily warrant replacing starting their application from scratch, only their UI code will get replaced (and its bindings).

This had been reported to Squish technical support team, and closed on behalf of the reporter. Unfortunately it was not possible to identify a clear cause so far.

[image: 01776ece-1308-4e3c-98fd-2749b3a4e221.png] Challenges faced: So when it came to building the d-pad, I was absolutely lost and was trying to approach this problem by drawing and arc instead and so I was reading about PathArc, and so it was getting so complicated, then I did see how it was implemented in the solution. repo: https://github.com/Meehir5907/QML-for-Beginners-Challenges/tree/Intro-Qt-Quick-My-Sol/StartingProject

@VikMorroHun said in blocked: cmake: command not found: In Linux I got more than 6000 hits How did you search to get 6000 hits?

找到原因了，账号密码错误导致的

Unless I misunderstand, this topic was written when this forum used Textile, which explains why some of the above have broken formatting. This question is therefore no longer relevant for this forum. That being said, to anwer this question should anyone else land on this topic from a search engine, this should (now?) be possible. 🅭🄍