Qt 5.0.1 - Windows: Upgrade broke application + "libstd++-6.dll" Error...
There was recently a very similar post regarding this issue, however that user was able to solve his issue by re-installing. Reinstall did not do any just for me. I have upgraded my Qt installation...
View Articlescroll bar follow the QGraphicsitem
Hi, I have a QgraphicsItem that i can Move it with mouse , I am using Qgraphicsscene and QgraphicsView for that , the problem is when i Move it in the Corner of the screen , Scroll bar start to move,...
View ArticleStrange External Library error
Hi Friends I have been using a lot of external libraries lately, and i usually dont have a problem working with them. However, I am working with one of the IR camera’s SDK and this is the problem I...
View ArticleROS Qt Phonon needs 'make' after restart
Hi all , I have developed a Qt GUI that displays widgets based on an XML string received from a SMACH state machine routed through ROS. The application uses Phonon to display video/audio and is being...
View ArticleHow To Install Qt 5.0.1 in Linux Mint 14 "Nadia" Cinnamon
I had gone through a heap load of trouble getting this to work to let’s get started: First download Qt 5.0.1 from http://qt-project.org/downloads I’m using a 32bit machine so I’ll select that and...
View Article[SOLVED] convert binary number to qtint64
hi , i need to change this a 50bit number to qint64 but i always return 0 its my code : QString num = "11111111111111111111111111111111111111111111111111"; qint64 nn ; bool ok; nn =...
View ArticleQGraphicsRectItem Mouse press event Problem!!!
i have a sub class of QgraphicsRectitem name “CLASS 1” , and re implement the mousepress event on it; i also have a sub class of qgraphichscene name “CLASS 2”,and re implement the Mouse press event for...
View ArticleNew wiki page - Qt5 dependencies (for installing pre-build libs)
Hi, just a quick post to say I’ve created a wiki page that says what needs to be installed for pre-build packages of Qt5 to work. Feel free to update and expand it. Link [qt-project.org].
View ArticleHow to specify Holidays and Weekends in QCalendarWidget and change the Color.
Hii… I am trying to create a calendar widget, in that the weekends are already shown in red color. Now i just want to specify some dates as Holidays and also i want to change the color of that...
View Article[Blutiger Anfänger] qt Creator debuggt nicht
Hallo Leute, - Win XP – Qt Creator 2.6.2 – MinGW (x86 32bit) Compiler Sobald ich mein Projekt ausführen möchte bekomme ich die Fehlermeldung “Qt Creator benötigt einen Compiler zum Erstellen des...
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...
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