which version of Qt/embedded statrt to support openGL
I’m new. It seems that all versions of Qte3 donot support openGL. Right? I tried to find the history of Qte, but …
View Articlegenerate Certificate chain in qt
i have a list of certificates in type of QList<QSslCertificate> and i want to create as many chains as possible starting from end user certificate to Root ca certificate(or viceversa)....
View ArticleProblem Regarding Data reading from QProcess::readAll
hai, In my application, i am using combo box. In that combo box 8 channels will be their. So when we select a channel1 Qprocess will run C executable file and i will read data from that process. I am...
View ArticleSymbols like € œ when given as part of text are displayed differently
Hi, I have to display € œ as part of the text element. In the qml file the above symbols are shown properly but when i run the program. They are shown differently. Please let me know how i can resolve...
View ArticleCompile only one file of a project with exceptions support
Hi! In our project we aren’t using exceptions, but some of the libraries we are using require exceptions support. I’d like to compile one file of a project with exceptions support enabled and the rest...
View ArticleUnable/not trained enough to get the expected look and feel. Any...
So, the code reveals a QListView “linked” to a QStandardItemModel and other pretty useless lines of code. model = new QStandardItemModel(this); audioTypes = new...
View ArticleStarting with Qt5
Hello everybody. Some time ago I started reading about Qt4 and the concepts of signals and slots but then I stopped. Now I have found that there is a new version Qt5 and would like to learn it...
View Articlehow to use the picture resource!
the .qrc maby expend the debug program ! how to use the dll letter picture！ or use the ways to picture but dont expend the debug progarm size！
View ArticleDiagnosing QDir::rmdir failure
I’m using the following code to delete an empty folder on Linux: bool removeFolder (const QString& path) { QDir dir(path); assert(dir.exists());...
View ArticleObjectModel unknown component (M300)
so I just got started to program in qtquick and I’m following the getting started guide. http://qt-project.org/doc/qt-5.1/qtdoc/gettingstartedqml.html but at the Using Data Models and Views part of the...
View ArticleQPainter/QTransform zoom-to-point
Hello, I already spent lot of hours and still can’t figure out how to do a CAD-like zoom-to-point with mouse wheel and translation using drag-and-drop on a drawing drawed by QPainter. My last code...
View ArticleChanging QML properties in C++
Hello I have already asked the following on Stackoverflow [stackoverflow.com] though, but I will try asking here now :) I am trying to change a property(canvasWidth) in a QML program with Qt/C++, only...
View ArticleQt Creator unable to see my Android device!
Howdy, I want to deploy my Qt application directly to Android device instead of AVD so I read the documentation [qt-project.org] but unfortunately it doesn’t mention anything about this issue. How can...
View ArticleInser into QTextEdit using QChar::ObjectReplacementCharacter crash after clear()
Hi all I’m developing a software using Qt 4.8.4. I have a QTextEdit where I insert some custom objects as found in the “Text Object” example. The first time I insert my object all goes well. The...
View ArticleQWebFrame::findAllElements() doesn't work in separate thread
hi. i’m trying to parse webPage to get all links on it. i use a QThreadPool and my own class implementing QRunnable, which provides all fucntionality. Everything is going good, if I run such QRunnable...
View ArticleConfigure for DirectFB but get linuxFB instead
I am building Qt from git and my configuration is as follows: sudo ./configure -opensource -release -force-debug-info -confirm-license -qt-sql-mysql -qt-zlib -qt-libpng -qt-libjpeg...
View ArticleChanges in .ui files not compiled by Qt Creator
I’m using Qt Creator 2.7 with Qt 5.1. I was working with a .ui file which I renamed and replaced an older .ui file. Now no matter what I do I still don’t get the up-to-date changes to my .ui file in...
View ArticleHow to handle GUI objects sizes for different screen resolutions?
Hi, I am developing an application on my Laptop using the form classes for GUI Windows/Dialogs. Every object inside the parent window/dialog has the default settings for size & I am using...
View ArticleRun Qt - gui application on Raspberry PI
Hi. A Qt program does not run on raspberry PI. If I try to execute it from a console I obtain a flash (I see a rectangle for 0.5 second.) and this error: pi@raspberrypi ~ $./ComputerVisionStudio...
View ArticleDouble scrollbars in Qtoolbox
I use a toolbox and I push in QTextEdit as items with the method addItem. So one open toolbox slot contains a QTextEdit and for some reason already a scrollbar. This scrollbar is not neccessary since...
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