What I done: validator.h: class UTILSSHARED_EXPORT Validator: public QObject { Q_OBJECT public: Validator(QObject *parent = 0); ~Validator(); Q_INVOKABLE static bool validateMobile(const QSt...

On execution of eiskaltdc++ on ubuntu 15.10 ,I get the following error: eiskaltdcpp-qt: /usr/lib/x86_64-linux-gnu/libQt5Multimedia.so.5: version `Qt_5' not found (required by eiskaltdcpp-qt) eiska...

Platform - Windows 7,8,10 I have created a QApplication from QMainWindow. I want it to remain always on top of all other windows. I have used Qt flags ( Qt::WindowStaysOnTopHint ) to achieve this...

Upgrading from Qt 5.4 to Qt 5.6 made all my .svg icons blurry/pixelated. I noticed this happens only on high density screens like on my MacBookPro Retina Display. I read the documentation of High D...

Today I have ported my application from Qt5.5 to Qt5.6RC. Running it on my high dpi screen the widgets appeared tiny. After reading this and setting QT_AUTO_SCREEN_SCALE_FACTOR to "1" at least it i...

I read the Qt Documentations, I checked out a couple examples provided with the SDK, I build Qt Creator from source to see how the Qt devs do it...still no luck. I am developing a cross platform a...

I've set up a file called test1.qml with the following contents: import QtQuick 2.6 import QtQuick.Layouts 1.3 Rectangle { width: 800; height: 1000; ColumnLayout { anchors.centerIn: parent ...

I'm trying to execute QCamera example on Ubuntu, Qt 5.6. "The camera service is missing" message observed. defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.came...

In my program I work a lot with serial communication so QByteArray is used very often. I was wondering if there was a shorter way to initialize a QByteArray with specific bytes than: const char t...

I am aware that there are many post about this, but I honestly didn't understood any of it. So, how do I install a kit for my Qt Creator (open source 5.7)? I already downloaded and installed MSY...

Is there a working guide on how to get Qt5.6 or even 5.5 built on the Raspberry Pi3? I've found a number of guides on Wiki, that all seem incomplete in some way, the last one I tried was: https:/...

I installed the newest version of Qt (on Webkit, Qt5.2 had WTFcrash). I try to get content of my website when the page is loaded (and it is): QString sHtml; view.page()->toHtml([&](const QS...

I use drag and drop in my QTableView (works). However, I do not see any drop indicator. I should see a line where the drop is supposed to be inserted, shouldn't I? At least here they say so. My in...

I have a minimal application which uses QOpenGLWidget that integrates an OpenGL wrapper library (OpenSceneGraph). I am trying to figure out how to correctly use the Qt5.6 support for high DPI scree...

I'm working on porting a Qt 5.5, QWebView project to Qt 5.6 (beta), QWebEngine. I've gone through the porting guide here. My code looks like this: .h file defines _view like so: QWebEngineView* _...

I just installed Qt 5.6 with the "Qt Unified installer" provided by Qt. Before the installation started, I made sure, that the "WebView" option in the installer was ticked. Unfourtunately, there is...

I'm planning to start learning Qt (I have no previous knowledge) so I've downloaded the latest stable web installer for Windows and Linux (I've got to machines), following the directions of the Win...

In QML applications there are 3 rendering types: Native OpenGL: "desktop" ANGLE Direct3D: "angle" A software renderer: "software" We use the automatic loading mechanism of the supported type. ...

I have installed this http://download.qt.io/development_releases/qt/5.6/5.6.0-beta/qt-opensource-windows-x86-msvc2015-5.6.0-beta.exe.mirrorlist And tried it using this extension on VS https://vi...