Qt project doesn't build successfully after updating the Qt Creator - Qt
Hi, I am working on this Qt application for symbian phones. I was using Nokia Qt sdk 1.2.1 and Qt sdk 4.7.3. The project was getting build just fine until I updated the QtCreator. I ran the updater...
View ArticleDifferentiate real time data
Hi friends i have a simple problem. I have time information (Count Down Time) comming from the socket every one second. I want to take a difference of the current value from the previous value of...
View ArticleUnable to cross-compile Qt4.7.1 for the TI AM335x
I’ve been using the Linaro toolchain from TI to attempt to cross compile Qt4.7.1 for the ARM based TI AM335x processor. The toolchain was installed with the ti-sdk-am335x-evm-06.00.00.00. I’ve updated...
View Articlenewbie trying build Qt4 project with maia openSSL library
Hello, I have a software designed with Qt4 from an other developper and I am trying to build again. I passed some difficulties but now I cannot find solution for a new problem : I have some errors due...
View ArticleQt5 QML QtWebKit 3.0 JS Console
I am working to troubleshoot the YouTubeView sample app with QT5.2 and could not find out how to get to the console.log writes from within html page running in a WebView widget. YouTubeView sample app...
View ArticleQt5UiTools.lib not being built Windows/VS2013
Hi, I’m trying to build using the qt-windows-opensource-5.2.0-msvc2012_opengl-x86_64-offline installation using VS2013 on Windows 7. It is mostly OK but it isn’t building (or installing to my install...
View ArticleqInstallMessageHandler to send messeges also to normal debug stream
Hi, I want to use qInstallMessageHandler to capture the debug messeges and save them to a file, but I also want them to be printed at the debug stream. is it possible?
View ArticleNewb needs help integrating C with QML using Qt 5.2
Hi all. I’m a newb in every sense of the word, so if it seems I’m asking this question incorrectly, bear with me… I’m a hardware designer that was dropped into the position of software and had to learn...
View ArticleWhy can't cmake find Qt5LinguistTools?
I’m in the process of ramping up on Qt5 (previously we used Qt4) and I’m encountering a strange problem. My project is based on CMakeLists.txt (not a PRO file) and I had that working fine until I tried...
View ArticleDrawTextItemDevice::metric: Invalid metric command on OS X
Hello, I get a lot of messages “DrawTextItemDevice::metric: Invalid metric command” when outputting static text. I’m simply doing it like this (the painter was created in a QWidget with “QPainter...
View ArticleQml Buttons and onClicked
Right now I have Qml code sending a signal to my c++ code that sends a true or false. When the button is clicked it sends a signal containing true. This is working how I want it to but I would like to...
View ArticleQT for embedded linux on windows
Hi all! I’m new to Qt and want to develop an application for embedded linux. can someone please guide me where to start from? I have ubuntu and windows 8 installed on my PC with dual boot. However I’d...
View ArticleSort by column header in tablemodel
I’ve checked the forums and documentation but still can’t seem to get it to work. Supposed to be essentially “automatic” and “built-in” using one line of code but the sort function just doesn’t happen....
View ArticleIssue with QVector
I am coming at this from 2 different angles but having no success with either. What I am trying to do is have a vector of ‘ParsableTextEdit’ which is my own type that is derived from QTextEdit. I am...
View ArticleFiledownloader confusion
I’m new to Qt and I’m trying to get data from a website. I’m trying to follow the Download Data from URL example with the filedownloader class. url =...
View ArticleQt Creator 3.0 Welcome Mode not working in VirtualBox VM
I originally installed Qt 5.20 with Qt Creator 3.0 on my Win7 64 bit machine and it worked flawlessly. Then I wanted to install it into a Win7 32 bit virtual machine (using VirtualBox). In the VM I...
View ArticleCalling a shared library that creates/uses Qt GUI
Hello all… I’m trying to call a shared library (specifically, a Mac dylib) from a main program that knows nothing of Qt. Both the main program and Qt dynamic library are in Qt Creator. I have the entry...
View Article#if/#endif directives change behaviour of vtable
Can someone explain that to me: This code here produces an “undefined reference to vtable” error: #ifdef __ANDROID__ #ifndef ANDROIDLOGIN_HPP #define ANDROIDLOGIN_HPP #include <QObject>...
View Articleapplication segfaults when assigning pixmap for Label
i am writing a qt4 gui application which has the following: -a main window with a widget which will hold: -an ogre instance (that is not important now, it is left empty) -a dockwidget with 2 buttons:...
View Article[Solved]Unexpected external symbol
I made project on linux with qt 4.7 and qxmpp 0.7.6, all works good I installed Qt 5.2 on windows, compiled qxmpp and installed it, it has finished successfully and is in...
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