I am using Qt QML C++ for developing desktop applications on Mac and Windows.
My all QML C++ applications hang on app startup on Mac 11 Big Sur. Whereas normal Qt Widget (non-QML) applications work fine.
Even Qt sample QML applications hang on startup.
Any pointer to resolve this issue is highly appreciated.
Qt version: qt 5.12
Big Sur beta 5
Update
Qt 5.15 works as expected.
Related
I was looking at the Qt 5.6 feature list, and it claims 'Full Windows 10 support'. Now I'm wondering, does this mean that ALL Qt features are supported on Windows 10 by the release of Qt 5.6? I'm asking this because I really want to use QtBluetooth on Windows 10, but Qt is not clear about the support of that on Windows 10.
Can someone clarify things up?
In Qt 5.5 Qt Bluetooth was supported for the following platforms:
Android, iOS, Linux (BlueZ 4.x/5.x) and OS X
Then in 2015 Qt developers discussed Bluetooth for Windows, see blog
Hopefully, we can close the gap towards the last major platform which is not yet supported. A WinRT port is being planned for Qt 5.6
But in Qt 5.6 there are no new features related to Qt Bluetooth and in tracker we see that:
WinRT (classic and Low Energy) is scheduled for Qt 5.7.
So this is not a question of Win10 support, I guess Qt Bluetooth will remain for the same platforms in Qt 5.6 and will be ported for Windows later.
I'm having a i.mx35 board on which the windows CE 6.0 present. need to know
will it run or debug the Qt application? or should i port the embedded Linux on the board for development, cause Qt does not support windows CE directly and i don't have any SDK to develop app for it.
will it support instrument cluster type graphics, created in Qt Quick (which having qml Flies)?
any idea on this.
I have an application running on Windows and OSX that I am considering porting to Qt.
Currently the application uses the native certificate detail dialogs CryptUIDlgViewCertificate on Windows and SFCertificatePanel on OSX.
Is there any way I can these native dialogs from a Qt application or will I need to roll my own Qt certificate details dialog?
I found QWinHost as a possible solution for Windows, but this seems to have been dropped from Qt5.
I am curious about the qt version used on Blackberry 10 momemtics IDE. Can I use QT5 for blackberry 10 development ?
Directly from the documentation you can find here.
The current release of the BlackBerry 10 Gold NDK
[developer.blackberry.com] includes Qt 4.8 for both the simulator
target (x86) and device targets (arm) available for development.
Compared to the development for the PlayBook, Qt is integrated in the
BlackBerry 10 device firmware and so can be used by Qt applications as
shared libraries.
The page is quite detailed. Have a look at it.
However, Qt5 can still be considered. You can find more information on how to use this Qt version in this other page, which states:
Currently, Qt5 is neither included in the BlackBerry 10 device
software nor in the BlackBerry 10 SDK. However, Qt5 on BlackBerry 10
has reached a excellent level of quality and can be used for
developing and publishing applications to BlackBerry World.
BlackBerry 10 supplies only Qt 4 libraries.
You can use Qt 5 as long as you bundle your application with self-built Qt libraries.
Here you can find detailed information.
I have Qt gui application working with OpenCV.
Sometimes it's nice to use OpenCV imshow() to show images during program work (for debug).
I just simply use:
cv::imshow("roi",roiImg);
in Qt application.
In Windows 7 everything works fine. Only when debugging in QtCreator I'm getting segfault when trying to show OpenCV window.
But my problem is that in WindowsXP even when running application exe both compiled as debug and release version program crashes.
Has anyone similiar problem? What is the best solution? What solution do you use as debug image output in applications written in Qt for example?