Movatterモバイル変換

@Jakob-Kenda said in Basic application crashes in QGuiApplication constructor if QCoreApplication::instance is called.:To me, this looks like a bug in Qt. Am I missing something?Why do people start out with "this looks like a Qt bug"? 99% of the time it's your code. As @jsulm points out the docs state:qAppA global pointer referring to the unique application object. It is equivalent to QCoreApplication::instance(), but cast as a QApplication pointer, so only valid when the unique application object is a QApplication.Since you don't have a QApplication, qApp will be nullptr, which you could easily test before dereferencing and then wondering why there is a crash. Not meaning to be rude, just saying RTFM ;-)

I've written a small article on how to use Live++ for hot-reloading QT C++.Turbocharge your QT C++ development using Live++ hot reloading.Adding Live++ is, simply linking to the Live++ SDK, and running the initialization process. When you want to recompile, use the Live++ hotkey - Ctrl+Alt+F11, as it patches the EXE with your updates, while your app is still running!Note: I'm a happy customer, recommending Live++ third-party SDK.

In QDS, SVGs usually look blurry when the path is being scaled instead of rendered at its native size. Make sure the SvgPathItem matches the original SVG viewBox and avoid scaling it down inside the component. If possible, import the SVG as a file and use an SVG Image element rather than pasted path data, and keep width/height proportional to the source. This prevents QDS from rasterizing it at a low resolution.

Resolved, just had to start a test and using the menu toolbar open application objects view before running the test

Hi everyone,We work on developing enterprise learning and training platforms, and recently we’ve been exploring Qt for building desktop or device-based applications that support safety training use cases.In industries like oil & gas—especially in regions such as the UAE—safety training systems often need to support offline access, structured learning modules, controlled user roles, and reliable performance across different environments.We’re interested in understanding from the community:Has anyone used Qt for building training, compliance, or safety-related applications?How well does Qt scale for enterprise-focused learning or content-driven platforms?Any best practices or architectural considerations when using Qt for regulated industry use cases?This is mainly an experience-sharing and learning discussion. Looking forward to hearing your insights.Thanks!

Sometimes, like when you are marooned on a desert island[in an announcer voice] Coming soon, to a desert island near you... :)Yeah, I guess cases where all you have is text search on a big code base are not that uncommon, like when browsing github repo or something like that, but specifically overrides... I don't think I ever had to look for overrides this way. Oh well, different people different use cases.

با توجه به اینکه بسیاری از سایت ها روی ایرانی ها بسته است آماده کردن محیط کیوتی برای برنامه نویسی آندروید اغلب نیمه کاره می ماند. من دستورالعملی لازم دارم که با استفاده از سایت های ایرانی بتوان اندروید را کیوتی نصب و کار را تکمیل نمود

Hi,This is a user forum. You should open a feature request on the bug report system.