General and Desktop

@satyanarayana143 Cutelyst or if you can wait: https://www.qt.io/blog/2019/01/25/introducing-qt-http-server

OK, I simplified the problem too much. I do not have a constant value for initialization, but an argument: void addToHash(const int key, const int value) { if (m_Hash.contains(key)) { m_Hash[key].append(value); } else { m_Hash.insert(key,QList<int>{value}); } } Here, the initializer list causes a compiler error: 'initializing': cannot convert from 'initializer list' to 'QList<int>' EDIT: And here I circumvent my original problem: void addToHash(const int key, const int value) { m_Hash[key].append(value); } ...since operator[] default-constructs an entry if none exists.

It seems i do already have the drivers shipped with the binary release of QT, as i found them in /plugins/sqldrivers: qsqlite.dll qsqlited.dll qsqlmysql.dll qsqlmysqld.dll qsqlodbc.dll qsqlodbcd.dll qsqlpsql.dll qsqlpsqld.dll Even as the documentation tells me otherwise: "Due to the practicalities of dealing with external dependencies, only the SQLite3 plugin is shipped with binary builds of Qt. To be able to add additional drivers to the Qt installation without re-building all of Qt, it is possible to configure and build the qtbase/src/plugins/sqldrivers directory outside of a full Qt build directory. Note that it is not possible to configure each driver separately, only all of them at once. Drivers can be built separately, though. If the Qt build is configured with -prefix, it is necessary to install the plugins after building them, too. For example:" So i don't need to build them anymore. Even if the problem itself is not solved (the same with the inital thread). Maybe i should not read the documentation first ;)

@mikeitexpert thanks mike, can you share please the: #include <utils/settings.h> #include <utils/utils.h> ?

@chris-kawa Thank you.

my outdate. ^^!. i see. thank @J-Hilk

@jonb Hello. Thanks for the response. I ended up making the combo boxes editable in QtCreator and then doing this: ui->cmbTest->lineEdit()->setReadOnly(true); ui->cmbTest->lineEdit()->setAlignment(Qt::AlignHCenter); Regards.

@rasden-mtz Hi Just guessing: the wiringPiISR expects a callback that is a plain free global function. ( a nonmember function) and you give it a function that lives in MainWindow so it complains that it has to be a static one (as that is like a global one since it requires no object instance to invoke methods) so make it static or simply use a nonmember function. so it has to be like @ambershark shows.

@canid why do you need it in the close button slot at all? As you noticed, it is called in the close event. Regards

event() is a vfun, so you also can do that: bool PushButton::event(QEvent *event) { if (event->type() == QEvent::MouseButtonRelease) { QMouseEvent* e = static_cast<QMouseEvent*>(event); if (e->button() == Qt::RightButton) { // Do what you want QMenu* menu = new QMenu(this); menu->addAction("d1"); menu->addAction("d2"); menu->addAction("d3"); menu->exec(e->globalPos()); return true; } } return QPushButton::event(event); }

@sgaist Thank you for the reply. To clarify, the Scroll Area aromatically comes with a QWidget child in Designer, so I have always been putting my layout in said QWidget. Looks just like this: Scroll Area -> Widget -> Grid Layout -> Stuff (Note: Scroll Area has no other children) After trying many things, simply changing the min size limits of the inner QWidget finally fixed it.

@bogong you're welcome. If your issue is solved, please mark your post as such. Thanks.

@jonb Yes, that is the document to which I was referring. Thank you for posting the link!

how is that question different to https://forum.qt.io/topic/106176/run-build-for-all-platforms-at-once-how which you asked two weeks ago?

Something happened and earned itself

I upgraded my ubuntu host to 18.04.2 - now Qt Quick data visualization examples run on ubuntu as well as Android without error. @skycrestway - thank you for providing the "existence proof" of this cross-platform capability!

Shouldn't this work? extern int somevariable;