QSignalMapper not working.
Hi, i use QSignalMapper like this: class MainWindow; } class MainWindow : public QMainWindow { Q_OBJECT public: explicit...
View Articlestrange errors when compiling Qt - please help urgent
I suddenly started getting some strange errors while compiling the code. i have not modified any files from these locations. for a while it was working perfect, and i observed these suddenly, i could...
View ArticleQFileDialog.setFileMode() gives wrong behaviour under Windows
I am creating an instance of QFileDialog (Qt5.0.2.) which I want to use to allow the user to select a directory. After creation but before showing the dialog, I am executing the...
View ArticleAutosave and password protection help?
Hello all, I have a classroom cash program I have been writing for a while. It works really well, but there is one thing I have yet to fix: I need to have the password file set up, and I need to have...
View ArticleIs this flash plugin problem.....??
in WebView the wrote the following line: settings.pluginsEnabled: true so it enabled the flash plugin! The problem is that, the url is of web conferences, which uses the flash plugin to enable video...
View ArticleASSERT failure in QVector::operator[]: "index out of range", file ...
Hi everyone I am relatively new to Qt, and working on game of life. Can someone please help me overcome this error. ASSERT failure in QVector<T>::operator[]: “index out of range”, file...
View Article[Solved] how to filter dictionary terms in category view? (QcomboBox)
i m trying to make a dictionry type software. This sofware will be the desktop version of this site http://technologybasic.com/. This site has many technology terms and show the terms in catagory wise....
View ArticleProblem debugging shared and static libs in QT Creator
I have a couple of libraries and I cant seem to get the debugger to step into them or set break points! I have just started with QT Creator and as a first step I created three simple projects 1. A...
View ArticleThe error: QGLContext::makeCurrent（） failed
Dear Friend I have encountered a problem. When I update my debian 64bit syetem to support Chinese character. by using apt-get install locales apt-get install scim apt-get install scim-pinyin and some...
View ArticleHow can I cross-compile QT 5.0?
Hi all I am new to QT and have cross compiled QT4.5 for arm using the ./configure -embedded arm (also with other options) But in QT5, I have not find such kind of a compile command to do the cross...
View ArticleQtMultimedia backend on Windows
Hi! I want to use Qt5 with QtMultimedia on Windows 7. But the codecs for video and audio is limited to my Windows, QtMultimedia uses DirectShow for his work. Is there a possibiliy to use libav or...
View ArticleBUG. Qt 5.0.2, Windows 32-bit, MinGW 4.7
This example code from Max Schlee’s Qt-book not comliling. /* ====================================================================== ** main.cpp **...
View ArticleCompletely Statically Built Application
Hi, I would like to write an application that is completely statically built using Qt 5.0. In the past, I have been successful in making applications that require shared objects to be distributed with...
View ArticleAm I using V8 engine?
Hello, I’ve run the following javascript benchmark in an Qt 5 application running a WebView and observe significant differences (factor 2.4) with Chromium (Google Chrome 26.0.1410.65):...
View ArticleMalware detection in 5.0.2
I’ve just hit a positive detection of malware in the mingw build of 5.0.2, in xmlpatterns.exe and xmlpatternsvalidator.exe According to comodo antivirus, the threat is identified as high risk...
View ArticleHow to get QQmlEngine from QQuickItem
I have a QQuickItem, I want to create QQuickText items dynamically in it according to the text property. Because this QQuickItem is a kind of plugin, so I can’t get the QQmlEngine directly from the...
View ArticleAccess to UI elements from another class qt-c++
Hello, I have a problem with accessing ui elements from another class(with instance). I have a second QMainWindow in my application, I can access in mainWindow.cxx, write.cxx and secondWindow.cxx class...
View ArticleQt Multimedia 5 - Video codecs (ffmpeg) - possible?
Hello I’m trying to display different multimedia formats inside my applicaiton. I chose qml because it provides me with some fancy icandy i can easaly sell to my chef. Since Qt uses gstreamer i assumed...
View ArticleQXmlStreamReader !
hi, i have in my application to convert, to a graphic item, this XML code : <name> ...
View ArticleSolved:VS2012 win32: fatal error LNK1107: invalid or corrupt file: cannot...
Oops. Included .dll instead of .lib
View Article