Creating a matrix of QLabels
Hi all! Is it possible to create a 2D matrix of QLabels like label1 label2 label3 label4 label5 ...
View ArticleHow to ask for Administrator privileges in Windows ?
How to ask for Administrator privileges in Windows ? i want this to edit file in program file .i can do this if i run application as “run as admin “. but as other user i cant
View ArticleBuilding QT5 Stable Branch from Git Repo on OSX 10.8.3
I haven’t been able to successfully build either the stable or dev branch from source on OSX. I was able to build the 5.1 alpha release successfully but I’d really like to learn how build from source...
View Articleqml animatedimage : error reading animated gif image
The programe in PC that is not issue,it display gif image correctly. Bbut download in the arm band ,it prompt qml animatedimage : error reading animated gif image I already add the plugins(...
View Article[Solved] QGraphicsItem::ItemFlagsHaveChanged: correct cast?
I would like to use the QVariant value from QGraphicsItem::itemChange with the change flag QGraphicsItem::ItemFlagsHaveChanged. The docs say about this change: bq. The item’s flags have changed. The...
View Articlecall function when select a row [SOLVED]
Hi, i have implemented a grid with the QTableView class. I want to call a specific function when i select a row and and when i do multiple selection (with ctrl pressed) i want to call another function....
View ArticlelibQt0 prefix for a library of a built add-on module?
I built Qt5 from source using this article http://qt-project.org/wiki/Building_Qt_5_from_Git I then build the add-on module QtSystems: cd ~/qt5 git clone git://gitorious.org/qt/qtsystems.git cd...
View ArticleSuggested Preference for ReturnCode vs Signals in Cross-Thread calls
Ok just wanted to know what general preferences are in terms of using return codes or signals to communicate result of an async function call. So this is how my code currently stands. Say you have a...
View ArticleQPrinter 4.8 supportedResolutions() on Mac os X
Hello, I’m trying to print an image with the QT 4.8 objects. On my iMac, using xCode, the supportedResolutions function returns to me a single value (300 dpi) but the selected printer (after a...
View ArticleFeature file (.prf) not being used
The Qt version i’m running does not seem to use the Features (.prf) i place in QTDIR/mkspecs/features I have the following in my application: CONFIG += uiframework And a file...
View ArticleQt Application Linux Deployment
Hi I know that this is an issue with numerous posts related to it. However in none of those posts I could find a proper “best practice” way to deploy an application on Linux. I’ve struggled for many...
View ArticleQWebview, alignment issue while printing the content to the printer.
Hi all, Your advice will be really appreciatible. I am doing the following: I have a class derived from QWebView, and trying to pass the View to the printer. My HTML Code: <!DOCTYPE html PUBLIC...
View Articlemouse event not work
Hi! I try to interact with mouse in my custom QQuickItem qmlRegisterType<Book>(uri, 1, 0, “Book”); To do this I implement void Book::mousePressEvent(QMouseEvent *event) But it never...
View ArticleInterfaces and Abstract classes
Hi I’ve just started writing a prototype to find out how certain things work in c++11/qt5. I’ve noticed that at least in c++ there is no keyword to achieve interfaces or abstract classes but one uses...
View ArticleQTreeview Custom model and QSortFilterProxyModel - changing data
Hi I have data Displayed as a Tree using QTreeView + subclassed QSortFilterProxyModel and subclassed QAbstractItemModel which is a Dom hierarchy of data. I have overriden the SetData Method in my DOM...
View ArticleHow to run te application with QtQuick.Controls?
When I import QtQuick.Controls 1.0 there is an error while debugging: Error: No widget style available. Qt Quick Controlscurrently depend on the widget module to function. Use QApplication when...
View Article[SOLVED] Multi-threading slower than single thread
I’ve implemented a neural network where all neurons are individual QRunnable. Each neuron only has a simple calculation (sigmoid function), but the neurons are executed a couple million times. I’m...
View Article[Solved]QDirModel : No display
Hello ! I’m starting to discover the Qt Model : QdirModel; the problem is that i get no display of the discs or anything #include "window.h" #include <QtGui> ...
View ArticleMake the labels on mac osx, "Services" and "About XXX" point to my widgets
!http://www.flickr.com/photos/92283971@N04/8692134295/in/photostream()! As the image show, the apps on mac osx always have something like “About XXX” and “Services Preference” wether you design it in...
View ArticleGetting a standalone Header widget
Is there any way I can get a widget that looks exactly like QHeaderView? I wish to have a QListWidget and insert multiple of it inside as items (no columns, just something like sorted rows). Or is what...
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