QML and Qt Quick

Thank you, I will take look at it.

https://doc.qt.io/qt-6/qml-qtquick-controls-stackview.html#attached-signals

I started getting "1060 Out of heap space" when I upgraded to Qt 6 and VS 2022. The "-std:c++17" flag triggers it. The solution was to update to VS 2022 ver. 17.14. This may be unrelated, but I'm posting it to help anyone else coming here with this problem.

Hi, I recognise your name from SFOS forum/Openrepos. I pasted your code into a new project, I cannot reproduce your problem. I don't get the white background as per your video. I am using the latest Qt Creator 18.0.1 (Built on Dec 9 2025 12:49:14 based on Qt 6.10.1 (MSVC 2022, x86_64))

@jchaviano I have met exact the same issue, the error string I got from "Video qml" onErrorStringChanged, is "I/O operation failed". I am using Android 11 and Qt5.15. Have you resolved the issue?

The workaround in this post might help. Basically it shows the popup again if it is dismissed by clicking somewhere else: QML: MessageDialog closes on click outside

Thanks @Markkyboy - I'm away from Qt work at the moment but I will give it another try soon.

I think a found what caused the slow performance. In the same window i'm drawing a FrameAnimation which is continously moving rectangle from left to right. Actually its not a big computation. Its strange, because i have already replaced a slower SequentialAnimation with this FrameAnimation. Which improves the performance. Now i found out it still affects my application together with this BusyIndicator. Still don't know why its only starting to work again after i minimize and maximize the window.... edit: After i disable vsync with qputenv("QSG_NO_VSYNC", "0") it works again.

Hi and welcome to devnet, You should check over on the bug report system to see if there's something already opened on the subject. Which version of Qt are you using ?

Which version of Qt are you using ?

@Markkyboy As I mentioned in the original post, just qmlpreview myexe. The executable myexe is compiled with QML debugging enabled.

It does make you wonder what setData()'s return value is used for.

Can you explain a bit more detailed what you mean with "combine multiple objects together"? Do you want the objects to be locked together but being able to rotate independently or something? If you simply want to disable collisions between objects you can use https://doc.qt.io/qt-6/qml-qtquick3d-physics-physicsnode.html#filterGroup-prop

Is this "Warning: Failed to load image: <path_to_ktx2>" the actual output or have you redacted the path?

@Niclas-Eisenhut hi and welcome to devnet, Can you also confirme this with the latest 6.10 release ?

@Axel-Spoerl I found that the following code works: QQmlApplicationEngine engine; auto ctor = engine.evaluate(R"( (function() { this.name = "test" this.create = function(){ return "hello world!" } }) )"); engine.globalObject().setProperty("OaiClient", ctor); However, I don’t understand what the documentation means when it says that the globalobject properties should not be modified, and I’m unsure what the implications of doing so might be.

@fxam, stackoverflow.com/questions/73475849 might be of interest.