[SOLVED]Why QSqlQuery faild after first use ::prepare and ::exec?
#include <QtCore/QCoreApplication> #include <qsqldatabase.h> #include <qsqlquery.h> #include <qvariant.h> #include...
View ArticleaddImportPath - QDeclarativeView?
Hi guys, i have an application which loads a Qml-File with the “QDeclarativeView”. My Qml-Files are extended by several QtQuick-Plugins, these are located in a custom directory. I found several things...
View ArticlePhonon: play video from a buffer
Hello, Here is the general idea of the projet: I read a video stream from a QUdpSocket I append the data to a buffer (actually to a QByteArray) I wait 10 seconds so that I have enough data in the...
View Articlehowto implement a multi-tap input method for qt5?
Hi, all. I’m working on a embedded project which has only one qt5 app running in frontend. The device we using has a 3×4 number keypad, and we want to implement a multi-tap input method for qt5. Can...
View Article[qt5] QMediaPlayer - i can`t get metaData :/
Hi I try to get the meta data of music file (i try different files and udio formats mp3 wav etc) all files are good becaouse other players shows meta data :C I try it on different ways but no one...
View ArticleManaging Ministro and Qt Libs
Hello, Where is Ministro in my phone? Where does it download and store the Qt libraries? How can I see what is downloaded and uninstall them? Thanks.
View Article[SOLVED][Qt5.0.1 static] QtCreator doesn't see MySQL plugin
I build Qt with: configure -static -platform win32-msvc2012 -qt-sql-mysql -plugin-sql-mysql -no-angle -no-icu -opengl desktop -nomake demos -nomake examples and now i’m trying to build the most simple...
View ArticleQGraphicsItem: act as invisible to mouse events
Hi fellows! I have a graphics item (lets say, a rect) and I want the view or the scene to ignore it when clicking in it. For example, if there is circle item behing my rect, I would like to select the...
View ArticleHelp with QButtonBox
Hi, I’m new to Qt. I have a QDialog with a QButtonBox that has a Save, Cancel and Open buttons. I’ve read the documentation for the QButtonBox, but I just can’t figure out how to manage the buttons...
View ArticleQt OpenGL memory leak
Hello A have a strange behavior in my Qt OpenGL widget based application. I just define a widget (inherit from QGLWidget) and in the paintGL function draw large number of 2D lines (1000 × 1000 for...
View ArticleParsing text with separated scheme-file
Hi comunity! I’m facing the following problem for which i’m looking for some hints. I’m a bit stucked and don’t get the idea how to solve the problem… - I have a text file (input-file). This file is...
View ArticleQMake DEFINES variable
Hi, I’ve got a function call in a SDK that is not defined any more so I need to remove it. I don’t really want to touch the SDK source code so I thought that I could use a macro to remove the call,...
View ArticleHow to deal with SQLite?
Hi, I’d like to use a local SQLite database for one of my Qt projects but I was unable to find any documentation about syntax or logic. Should I implement a class such as “DBManager”? How can I...
View ArticleSuperscript not working in QtQuick 2.0
The <sup> tags for rich text are not working in QtQuick 2.0. It looks the same as subscript. Text { anchors.centerIn: parent textFormat: Text.RichText text: "Normal text,...
View ArticleQtSerialPort instantiates in wrong thread?
Hey, I’ve got a project I’m working on that needs to read data from the COM port of a particular device. The QtSerialPort project (http://qt-project.org/wiki/QtSerialPort) provides examples, and these...
View ArticleHow to post QHttpPart with sequential QIODevice
I am writing an application that is posting data as http multipart to a server. One of the parts is ordinary text, the other part is read from a sequential QIODevice. Post with QNAM hangs after all of...
View ArticleUsing QDoc does not work at all
Hi, I have been working on a project for a fesw months and I would like to generate a documentation from the sources. I know that QDoc is used to do it but I can not make ir work! I have checked on the...
View ArticleQComboBox with multiple columns
I’m trying to display multiple columns on a QComboBox. It’s almost finished, with one exception: the visible item on the combo box only displays one column. When expanded, everything looks good. I...
View ArticleQt Ambassador program?
Hi, after 2 years of development we successfully migrated our project to Qt framework for all major desktop platforms. I’m wondering if there is still Ambassador program with Ambassador kits and all...
View ArticleInstall Qt Windows 8
Hi how can I install Qt Creator 2.6.2, Qt Libraries 4.8.4 for Windows (VS 2010) ? I’ve installed but it said to me “No kits were found”. So how can I install it properly ?
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