@hassene
Hi and welcome
Is there a reason you simply dont use a layout ?
To make it autofollow the size of window ?
if you place a QLabel on a form ( mainwindow.ui) , right click somewhere on
empty form, and select Layout menu and select layout, the label will follow maniform.
https://doc.qt.io/qt-5.10/examples-layouts.html

Ah, i see from your deleted post what you say.
When QListWidget is clicked first time, it receives focus
When you then click a button, that button is now given focus.
Focus is not the same as selected for QListWidget.- one or more item can be selected.
You can try
qDebug() << ui->listWidget->currentItem()->text();
in button.

Also note that Qt 5.4 was released before VS2015 came out, you should use at least Qt 5.6 with this compiler

@M4RZB4Ni
Hi its all in here
http://doc.qt.io/qt-5/qscrollbar.html#details
But connecting to a random widget will do nothing.

IF u have this case,
user click on Tab
In tab there are many widget so he need to scroll to see last of them, then u just use
a scroll area and put all stuff inside. then it will just work. ScrollArea have scrollbars.
U can control if both horz and vert or just horz.

@SGaist So, last week our integrator had a moment of lucidity, and realized that we were actually using a debug-version of moc.exe instead of a release-build...........

I did a quick test with a release build of moc.exe, which took the exact same measurement I mentioned above back to 1m10s, so indeed faster than with the 5.4-version, as you expected.

If you have the need to show tabular data on two columns then yes QTableView is the right tool. After that, what kind of model will you be using ? How much data will be shown ? Depending on that QTableWidget might be enough.

Hi,

After digging the issue, the cause was related with permission in folder /dev/galcore (in my case, galcore is the Vivante GPU driver).
To test the solution, you could change the owner of the folder as below:

sudo chown -R username:group /dev/galcore

To obtain the root cause, you could perform the following test:

strace yourapp -platform eglfs ... open("/dev/galcore", O_RDWR) = -1 EACCES (Permission denied) open("/dev/graphics/galcore", O_RDWR) = -1 ENOENT (No such file or directory) --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0xd4} --- +++ killed by SIGSEGV +++ Segmentation fault

Julio

Since the obvious answer to the question is a resounding 'no', I'll mark this question as 'solved', although I'll still have to think about a way to achieve what we want in the most convenient way.

Do a small search on the forum, there was already a thread about Qt-VLC last week that might help you.

I've checked, there's currently no option to do it directly with Qt Multimedia. You might want to check the QtAV project.

@jsulm
I add a button even as below.

void Dialog::on_pushButton_clicked() { SubView *QQ=new SubView(this); QQ->setModal(true); QQ->setEnabled(true); QQ->showNormal(); }

Then, I put a QEditline on the subview .
Of course, subview is a class inherited from the dialog.
This is a very simple code.

Or

You can try this
https://github.com/mkdh/QEditlineOnNewWidgetiOS

Easy: just edit the thread title and prepend [solved] :)

Did you try setting antyaliassing?
http://doc.qt.io/qt-5/qpainter.html#setRenderHint

@juanki Gracias!

Can you show your class and its implementation ?

Solved from https://forum.qt.io/topic/17139/solved-how-to-use-ssl-support-without-manualy-building-qt-libraries/6

added CONFIG += openssl-linked
copied from the QtSdk the (MingW) libeay32.dll and ssleay32.dll in the same folder as the executable

Thank you very much Chris

@Joel-Bodenmann Alright.

@SGaist Thanks, its done :) @mrjj @Eyeless

@SGaist No warning from the setup interface, now use the MinGW are all normal

scene = new QGraphicsScene(20, 115, 600, 600,this);
scene->setItemIndexMethod(QGraphicsScene::NoIndex);
canvas = new CanvasItem(this);
scene->addItem(canvas);

graphicsView = new QGraphicsView(this); graphicsView->setObjectName(QStringLiteral("graphicsView")); graphicsView->setGeometry(QRect(20, 115, 600, 600)); graphicsView->setMouseTracking(true); graphicsView->setScene(scene); QSizePolicy sizePolicy0 (QSizePolicy::Fixed, QSizePolicy::Fixed); sizePolicy0.setHorizontalStretch(0); sizePolicy0.setVerticalStretch(0); graphicsView->setSizePolicy(sizePolicy0); graphicsView->setFrameStyle(QFrame::Panel | QFrame::Raised); [QGraphicsView with QPixMap Background](https://forum.qt.io/topic/6313/qgraphicsview-with-qpixmap-background/4)

According this post, I use QgraphicsView::setStyleSheet() to set background, It‘s still useless.
but I comment this statement which "scene->addItem(canvas);", It's work.

//class CanvasItem :public QObject, public QGraphicsItem

I'd generate the Xcode project from a .pro file, that way you have everything setup for you

first you just have to build project from Qt and then open output file.xcodeproj from Xcode
https://www.youtube.com/watch?v=OQN_AwcF0GU here is a video how to set application icon using Xcode
i hope it helps

@LFLserg said:

When I try to build Qt 5.4.2 after ./init-repository
It says that qtactiveqt.git has no such branch!
So i checkout to 5.4.
Is there a way to build 5.4.2?

Check out the tag called "v5.4.2". See http://code.qt.io/cgit/qt/qtactiveqt.git

what different between clicked and doubleClicked?

In doubleClicked case,
I can't press the button before touching the screen on my new widget.
connect(ui->lvwFile, SIGNAL(doubleClicked(QModelIndex)), this, SLOT(on_btnOK_clicked()));

In clicked case,
I can press the button before touching the screen on my new widget.
connect(ui->lvwFile, SIGNAL(clicked(QModelIndex)), this, SLOT(on_btnOK_clicked()));

But, I want to use doubleClicked....

qrc is a read-only system by design. Otherwise it would mean that you can rewrite your executable in place.

You're welcome !

By the way, no need to modify the title to mark the thread as solved, the "Topic Tool" button is there for that :)

The only leak I can find is caused by ui->lvwFile->setModel(model). setModel(model) does not free the old model, instead you need to delete it manually. Your coding style could use some fine tuning init_styleditemdelegate_cell is absolutely horrible class name, and you could add a few newlines here and there to group logical pieces together.

@islam-ouahouda Try this, http://seppemagiels.com/blog/create-mysql-driver-qt5-windows it worked for me

@mkdh You're Welcome :) Also please surround your code with ``` (3 backticks) while posting it here. It looks more nicer. I have now added those in your previous post. Happy Coding ...

@SGaist Thanks! Solved this!

HI and welcome to devnet,

you can connect a slot to the QHeaderView::sectionResized() signal to be notified when a column is resized

connect(tableView->horizontalHeader(), &QHeaderView::sectionResized, this, &MyWIdget::slotColumnResized);

@Lays147

I do not have to use cmake,
We just build vtk and qt and link to them in VS project.

If it is linked but you get run-time error it means there is lack of run-time initialization ( related to system/driver specific needs),
If you used CMAKE this would be handled buy cot it generate.
Above given code provides initialization of some modules and is sufficient for me .