QWebView & websockets & self-signed certificates
Hi, All. I have nginx webserver with proxying websockets. I generate CA certificates, and generate clients certificates, signed by CA certificates. In my application I subclass QNetworkAccessManager...
View Articleqabstractanimation.h:59: error: base class has incomplete type
I am trying to install Qt 5 [5.0.1] on Mac [osx 10.7.5]. The first issue was with qisenum.h, but I found a fix for that. Now I am getting an error:...
View Articlememory analyzer
Hi all, What memory analyzer do you suggest me to analyze my application on Windows? Is there any free one?
View ArticleInstalling Qt 5.0 on Windows 7 64-bit and VS2008 Pro
Hello all, I have a machine with Windows 7 64-bit and Visual Studio 2008 Professional and would like to install Qt 5 to familiarize myself with Qt Creator and Qt library. I can see from the Qt...
View ArticleQStyledItemDelegate: height for width
Hi What is the best way to implement ItemDelegate that changes it’s height when view is resized? I want to implement my own “very special” item delegate for QTableWidget in such a manner that it will...
View ArticleQScopedPointer and assignment value
Is there a way to use an assignment operator for the underlying object of a QScopedPointer, or is this verboten? e.g. int testFunction(bool myFlag) { ...
View ArticleIs it possible to skip Component Selection Page in Qt IF?
I’m considering using Qt Installer Framework [doc-snapshot.qt-project.org] I’d like skip the Selection Page Component in my Installer, since there is only one component in my application. Is it possible?
View Article[solved] Qthread start() causing SIGSEGV Segmentation fault
Hi Cerebrates! Could anybody take a look why I’m having SIGSEGV crash while starting new thread? // STUDENTS CLASS class students : public QObject { Q_OBJECT public:...
View ArticleQtCreator, VS2010 & compiler heap space error with large resources
So our Windows build is giving us: qrc_data.cpp:1748020: error: C1060: compiler is out of heap space Obviously our .qrc is rather big, but not that big (the final executable is under 100 megs), but...
View ArticleLoading Large Image, busy indicator on a Single Thread
I’m loading a large Image in a graphics view. I try to show the user a busy indicator, but since it is happening in the MainWindow and since it is on single thread, the busy indicator never shows. Is...
View Articleemit dataChanged not updating my data
I am using an AbstractItemModel and I can’t seem to get my table to update the changed data. I have the table view within a docked widget, If i lose focus to the window or regain focus or change the...
View Articleproblem: font size changed with html font tag
in the Qtdesigner, I have a text label with font defined as “Ubuntu 12”. in the code, if I just change the text of the lable, it is ok to display, such as “1234”, no problem. but when I try to change...
View Articleread from tableview
How i can read data, from tableview my code model->setHeaderData(0, Qt::Horizontal, QObject::tr("Subject")); ...
View Articlescrolling using QtQuick 5.0 Canvas
Hi Looking at the doc, it seems like it should be possible to scroll a QtQuick 5.0 canvas by setting the canvasSize, canvasWindow and moving the canvasWindow relative to the Canvas. I haven’t had much...
View Articleremove a QGraphicsItem from a QGraphicsScene.
hi all, I have a problem when i try to remove a graphicsItem from a QGraphicsScene instance. The message error is : QGraphicsScene::removeItem: item 0×844c398’s scene (0×0) is different from this scene...
View ArticleQt 5.0.1 build failure on linux with Gcc-4.8.0 and c++11 turned on.
Hello, I’m trying to build Qt-5.0.1 on 64bit linux with GCC-4.8.0 enabling c++11. Compilation is failing with bunch of errors. kernel/qtimerinfo_unix.cpp:98:30: error: redeclaration ‘constexpr T...
View ArticleStrengths of Qt vs other solutions
Hi all, I’m evaluating Qt to create UI tools for 3D applications in openGl and/or DirectX. What kind of features does Qt offer over other alternatives such as Fltk, Gtk+, etc? Looking at the...
View ArticleCannot Install On OS X
I’m trying to build the latest package of QT on OS X. When I try to make it, I get an error on the statement to include RegExpJitTables.h. I’ve seen this has shown up in Fedora, but no references to OS...
View ArticleProblems getting QAuidioOutput working on Pi
Hi, first I apologize for the massive post…, I’m dividing it in 2 parts, I hope I don’t break rules with that… I just think it’s best to be as detailed as possible. I intend to start developing on Qt 5...
View ArticleA question on using QSharedPointer with QImages
I’m dealing with a large image and am doing several different processes on the QImage. Based on my research, I believe QSharedPointer is the correct answer. Is this correct? Because the image is so...
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