General and Desktop

A QApplication always initializes the graphics system. For a real console app, without using QtGui module, you need QCoreApplication. There is no easy way to provide a "debug console" in your application. You will need to attach to the windows service for that or provide a logger window for qDebug/qWarning/qError yourself. For the latter, there is an example for a "Browser for QDebug Log Output":/wiki/Browser_for_QDebug_output in the wiki. PS: There's another, more sophisticated logger framework. See the "announcement in the showcase forum":/forums/viewthread/2654.

Moved to the General Forum, this is Qt related and no C++ issue.

Check the documentation on using Qt Designer. It explains you all the ways you can use the .ui files, including the setupUi call.

gmaro, Thanks for the ideas. To answer your question, I am trying to access my textboxes in the widget application so I can change the text. I am still dissecting your code though (still learning C++), so your's could solve my problem.

Will be trying the proposed solutions this morning. Thank you for the great suggestions,

What error they gives with lastError() ? Worked fine for me in 4.8

Hi, You need to use a QTreeView,QTableView and a model(eg: QStandardItemModel to store the information). You also need a class to store the information/data(eg class Student { int m_rollNumber , QString m_name; }; etc ) and in the treeView u need to store the object of this class. When an item/object from the treeView is selected u need to cast this object to your class and then get the information and for the particular columns in tableView u can set the values. You can try this approach to create a sample application.

thanks for your reply. I will check..

[quote author="GentooXativa" date="1334903757"]Launch QtCreator with @-style native@[/quote] I think that's the default style when launch QtCreator. In Ubuntu, QtCreator can pickup ambience (GTK) style but in Kubuntu, it can not use oxygen style. I've tried that option but it has no effect. Another problem relating to this bug is that: All applications built by QtSDK can not pickup oxygen style in Kubuntu. It will use plastik style instead, just like Qt Creator.

(y) franco é um gênio. deu certo aki tbm. :)

I had the same problem and solved it using QTcpServer and QDataStream on the Qt side and TcpClient and a handmade streaming class on CLR side.

I always tried so very helpful

You are welcome. Glad I could be of help.

thanks lukas right anwser

What about setPos(mapToParent(mapFromScene(touchPoint1.scenePos()))) ?

[quote author="GentooXativa" date="1334911842"]You enabled the opengl at your pro file?[/quote] @LIBS += -lqglviewer-qt4 -lGLU@ and @QT += core gui opengl xml glviewer@ Is that correct?

Yes, it claims also about destructor will not be called. But when how to hide privat shared data. And Qt docs says that putting private shared data in seperate class is common use.

[quote author="AcerExtensa" date="1334907144"]Linux pre-load method is to set environment variable LD_PRELOAD.[/quote] LD_PRELOAD is not exactly what I want .I want Qt libs be loaded into memory while the system boot ,LD_PRELOAD could not do this I think .