General and Desktop

I am using this as a replacement for QFontDialog::getFont(), for now: QFont getFontFromDialog( bool* ok, const QFont& font, QWidget* parent ) { Q_ASSERT( ok ); QFontDialog::FontDialogOptions options; #ifdef Q_OS_MACOS if ( QOperatingSystemVersion::current() >= QOperatingSystemVersion( QOperatingSystemVersion::MacOS, 27 ) ) { // native font dialog does not work with Qt for macOS 27 options |= QFontDialog::DontUseNativeDialog; } #endif QFont f = QFontDialog::getFont( ok, font, parent, QString(), options ); return f; } But I hope we get a fix so that we can use the new macOS 27 native font menu.

Since the XCB version creates a valid surface while the X11 version returns a null surface, it does sound like the issue could be related to the EGL platform configuration. It would be interesting to see whether the same behavior occurs with a different Nvidia driver version or a minimal Qt example.

Hi @Jerry39 , you can use QWT

@aha_1980 Thanks for taking care of this! I think a method like deviceState() or deviceType() would be appropriate and offer more flexibility for the different CAN plugins. I wouldn't change QCanBusDevice::state() or busStatus(), they have a different meaning. I have noticed that the Peak USB devices actually fall back to a virtual CAN interface the moment you disconnect the usb device (the virtual interface is called "PCANLight_USB_16" in PCAN-View). This might explain why no errors are reported and the QCanBusDevice remains connected - the virtual interface is still working. This automatic fallback seems to be an intended feature of the peak driver. Ideally there'd be a DeviceType enum with values like Virtual and Physical to represent what kind of device it currently is. But this switching behaviour seems pretty specific to peak devices, so perhaps somebody has an idea for a more general approach. Ideally-ideally this change would also be emitted as a signal :)

@Christian-Ehrlicher , I added below line in main.cpp but nothing changed in Debian 12. QApplication::setStyle(QStyleFactory::create("Fusion")); MainWindow w; Regards, Mucip:)

Welcome to the forum! It would useful if you can expand on your use case and motivation for running multiple applications under X11 with no window manager at all, not even twm. A minimal reproducible setup would also be required for it to ever progress. It is quite possible that this is the result of a bug in the xcb platform plugin, but it is also quite an unusual setup (Qt can work on X11 without a WM, but it is more intended for kiosk like setups).

You're welcome! @crazy-stone said in Looking for Qt commercial licensing sales contact in China (Application Development): Do you happen to have more direct contact information for the sales representative in China? I don't have direct contact to a specific sales representative, sorry. Did you try to ring the phone number for Shanghai Sales inquiries? +86 21 51748525 Another option, since you have an evaluation license, is to log into https://account.qt.io/s/support-center and create an "Account" or "Sales" request.

You're welcome ! You have it working the way you want it now ?

Hi, How are you adjusting the scene and the view ? Do you have a reproducer handy ? Can you consider updating Qt to a more recent and supported version ?

@JoeCFD said in VST audio plugin using Qt Creator with QML for the UI: @Simmania Not sure if VST audio plugin is good or not. Have you tried it? libVLC might be another choice. Check it out. We coded audio/video pipelines with raw gstreamer code and can have more controls over them. A lot of work is needed. FFmpeg is very good as well nowadays. But it could be much simpler with the help of AI tools. I do not understand this answer. My question was about a VST audio plugin. I'm not interested in libVLC which has nothing to do with audio plugins.

@Chubinou hi and welcome to devnet, Do you have a known set of servers or just "anywhere is possible" ?

@Nathaniel Are you thinking about something like this? [image: 4a8e41cd-0d50-468c-a032-6949ec4d33ff.png] This is used as tags / filters for the forum search function. You can make your own widget or delegate quite easily. I would start with QWidget, and then add a label and a button to it.

@f222 Glad I could help :) Don't understand the issue in your second paragraph so i will leave that with you. It was a guess about TZ. That is a normal environment variable under Linux (which I use) but not so much under Windows. There it gets complicated: it may depend on the compiler code you use (MinGW vs MSVC). I believe it is also used automatically by the C runtime code you link/dynamically load (DLLs) against. How that in turn relates to C++ runtime code I don't know. And I suspect Windows calls do not use it, only C/C++; and then I don't know which Qt calls' implementations use C/C++ functions versus Windows-SDK ones, and maybe a mixture (e.g. your time calculation calls use the C/C++ TZ variable but your name-of-timezone uses a Windows call?). And for all I know Qt's internal code may have changed in that area between your old-working Qt5 and new-non-working Qt6. It's all perhaps a minefield, suck it and see :)

Too late to edit my previous message. Forget about point (2); it has nothing to do with point (1).