Proper use of Q_OBJECT?

Posted by Jen on Stack Overflow See other posts from Stack Overflow or by Jen
Published on 2010-06-10T03:13:55Z Indexed on 2010/06/10 3:22 UTC
Read the original article Hit count: 503

Filed under:

qt

|

qt-creator

|

qtcreator

If I derive my class from QObject (or a subclass), the Qt documentation says that I have to put the Q_OBJECT macro into my class declaration.

It also ways I need to "run the meta-object compiler" for my class.

I have no idea how to do this. Is this something I need to add to the .pro file? Do I need to edit the makefile? This seems overly complicated for a simple derived class.

I'm using Qt Creator.

© Stack Overflow or respective owner

Related posts about qt

qt cannot open input file 'c:\Qt\qt\lib\qtmaind.lib'

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I am using qt 4.5 I have created a project and I want to compile on visual studio 2008 for windows mobile 6.0 So I have created the project files doing this: D:\Projects\Phone_PDA\Phone_PDA>set QMAKESPEC=win32-msvc2008 D:\Projects\Phone_PDA\Phone_PDA>qmake -tp vc The VS project was… >>> More
Qt Linking Error.

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I configure qt-x11 with following options ./configure -prefix /iTalk/qtx11 -prefix-install -bindir /iTalk/qtx11-install/bin -libdir /iTalk/qtx11-install/lib -docdir /iTalk/qtx11-install/doc -headerdir /iTalk/qtx11-install/include -datadir /iTalk/qtx11-install/data -examplesdir /iTalk/qtx11-install/examples… >>> More
To connect Gstreamer with Qt in order to play a gstreamer video in the Qt Widget

as seen on Stack Overflow - Search for 'Stack Overflow'
I tried using phonon to play the video but could not succeed. Off-late came to know through the Qt forums that even the latest version of Qt does not support phonon. Thats when i started using Gstreamer.Any suggestions as to how to connect the Gstreamer window with the Qt widget?My aim is to play… >>> More
How to mix C++ Qt objects and Qt Jambi objects

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to combine some existing Qt code written in C++ with some code written in Java using Qt Jambi, but I'm not quite sure how to do it. I'm basically trying to acieve two things: Pass a QObject from C++ to Java using JNI Pass a Qt Jambi QObject from Java to C++ It looks like I can… >>> More
La rubrique Qt sur Facebook, devenez vous aussi fan et suivez l'actualité Qt depuis Facebook

as seen on Developper.com - Search for 'Developper.com'
Comme vous l'avez probablement remarqué, les réseaux sociaux explosent de partout, Developpez.com et toutes ses rubriques se doivent donc, comme toujours auparavant, de suivre l'évolution en s'ouvrant à ces réseaux sociaux. Vous pouvez donc désormais suivre l'actualité de la rubrique sur Facebook… >>> More

Related posts about qt-creator

How do I work around sudo 'segmentation fault' on basic bash commands?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I am sure the answers are out there, but alas there are too many answers (here and elsewhere) to other questions stopping me from finding them. I just encountered something substantially similar to what is described at the closed SO question, sudo : “segmentation fault” Ubuntu maverick [closed]. My… >>> More
How can I change the UI language of QT Creator 1.3.1?

as seen on Stack Overflow - Search for 'Stack Overflow'
I just downloaded and installed QT Creator 1.3.1 on my english Windows 7 system from the english download site at http://qt.nokia.com/downloads Apparently, however, the UI of QT Creator is in German language, although the help files are in English. From the FAQ at http://www.qt.gitorious.org/qt-creator/pages/FrequentlyAskedQuestions… >>> More
Renaming files on Qt Creator

as seen on Stack Overflow - Search for 'Stack Overflow'
Can it be done through the IDE itself? I can't find an option to do it. >>> More
Using Qtcreator (with Qwt), really basic stuff

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to make a Qt program using Qtcreator and Qwt for plotting. I've never used Qtcreator before. I've created a mainwindow and added a Qwtplot widget there (object name: qwtPlot). The widget shows up in the program when I compile and run it. But theres no mention of the qwtPlot object anywhere… >>> More
QT Creator 64-bit Snow Leopard

as seen on Super User - Search for 'Super User'
I have a bunch of libraries that I need to link against that I installed via macports. They are 64-bit libraries. I'm working on an application written with QT Creator and the .pro is set up. I downloaded the QT SDK for Mac OS X, but it is 32-bit and so the compiled code won't link against the 64-bit… >>> More