General and Desktop

@king558 said in QMYSQL Driver not loading: t would be nice, if you say explicit, do not use libmysql.dll from MySQL Server in bol Why? It does work... Oh, and don't use a MySQL.dll from your external hard disc... Maybe also in bold?

nevermind, you just need to call setToolTipsVisible(true) and it works even for disabled actions. only the redraw behavior of actions with the same tooltip (if e.g. disabled for the same reason) is a bit weird

This problem is fixed with Qt6.10, maybe also with 6.9 but don't know exactly since there are a lot of changes in the windows11 style as it is not yet finished. This works fine for me with git HEAD: class Delegate : public QStyledItemDelegate { public: using QStyledItemDelegate::QStyledItemDelegate; void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const { QStyleOptionButton buttonOption; buttonOption.rect = option.rect; buttonOption.palette = option.palette; buttonOption.direction = option.direction; buttonOption.fontMetrics = option.fontMetrics; buttonOption.styleObject = option.styleObject; buttonOption.state = QStyle::State_None; buttonOption.state |= index.column() % 2 == 0 ? QStyle::State_On : QStyle::State_Off; if (index.column() < 2) buttonOption.state |= QStyle::State_Enabled; option.widget->style()->drawControl(QStyle::CE_CheckBox, &buttonOption, painter, option.widget); } }; [image: 89ce1e26-8ddc-4464-b58e-72c1c19ca304.png]

Similar issue for Qt 6.8.3 on MacOS Tahoe 26.1, except the missing file is litehtml/html.h. In my case litehtml is indeed installed locally (its a dependency of octave apparently, perhaps transitively via pyqt). And the missing file actually seems to exist at /opt/homebrew/include/litehtml/html.h. But for whatever reason the search path doesn't include the top level folder. I noticed there's an option to ignore the system litehtml, albeit without a convenient -FEATURE flag. Even adding -DQLITEHTML_USE_SYSTEM_LITEHTML=OFF to the configure invocation doesn't seem to do it. So I hacked it in by modifying the line in CMakeCache.txt after running configure: QLITEHTML_USE_SYSTEM_LITEHTML:BOOL=OFF

I second @SimonSchroeder comment about OSspecific functions. You probly should not use Qt for a presentation layer on a project that expects high refresh rates. Qt is more suited for classical productivityGUIs rather than gaming.

In the C++ world don't pass mutable objects by const value. Pass them by const reference. ie const QString& filename QFile follows this paradigm...

@SGaist said in qt_add_resources not adding resources: Hi, From a quick look at the qt_add_resources documentation: set(sources main.cpp) qt_add_resources(sources example.qrc) qt_add_executable(myapp ${sources}) It seems that qt_add_resources, in the context of a qrc file, should be called with a variable containing the list of files for your executable. So the core issue is that I can define my sources via target_sources, but this won't work with qt_add_resources, as this one only works with a (classic) list of files, and not with target_sources?

@Jibun-no-Kage why are you running the application as root?

Thanks @cristian-adam

QT 5.14.1 and windows 7 and windows 11 I found the error code line. if I used the code like this: showNormal();//the qwidget slot function setAttribute(Qt::WA_TranslucentBackground); the dark part will appear. and if remove the showNormal() function ,then the tranlucent would work.so is it a bug or something else?

@kiru hi and welcome to devnet, It's seems to be working here at the time of writing. If it's still not, you can use the GitHub mirror.

No wonder, there was a formatting error in the form upload data -- mea culpa! Problem solved.

I fixed the problem! :-) The trick is to disable the sandbox mode of the webengine. It looks like this problem was introduced since it was running remote on Windows Citrix. The only problem now is, that the resolution of print looks low. It looks like maybe 100 dpi even it looks fine on normal windows computers. Any idea how to fix that?

If you need some clarifications let me know

@icebergenergy How did you add the files to your project — manually in Qt Creator, or did you rely on automatic folder parsing / globbing? Either way, if you delete a file via the file manager instead via QtCreator Project Manager, you'll have to rerun cmake.

When the platform plugin provides a native file dialog then it is used, otherwise the Qt one is shown.