c++ Programming Glossary: q_object

http://stackoverflow.com/questions/1053099/how-can-i-get-content-of-web-page

sample illustrating usage class MyClass public QObject Q_OBJECT public MyClass void fetch public slots void replyFinished QNetworkReply..

Qt question: What does the Q_OBJECT macro do? Why do all Qt objects need this macro?

http://stackoverflow.com/questions/1368584/qt-question-what-does-the-q-object-macro-do-why-do-all-qt-objects-need-this-ma

question What does the Q_OBJECT macro do Why do all Qt objects need this macro I just started.. that all the example class definitions have the macro Q_OBJECT as the first line. What is the purpose of this preprocessor.. it finds one or more class declarations that contain the Q_OBJECT macro it produces a C source file containing the meta object..

Undefined reference to vtable. Trying to compile a Qt project

http://stackoverflow.com/questions/1552069/undefined-reference-to-vtable-trying-to-compile-a-qt-project

QLineEdit class QTextEdit class AddressBook public QWidget Q_OBJECT public AddressBook QWidget parent 0 private QLineEdit nameLine..

When should Q_OBJECT be used?

http://stackoverflow.com/questions/3689714/when-should-q-object-be-used

should Q_OBJECT be used The documentation states that The Q_OBJECT macro must.. should Q_OBJECT be used The documentation states that The Q_OBJECT macro must appear in the private section of a class definition.. can I safely omit it Will problems arise if you omit Q_OBJECT on a QObject derived class and then inherit from that one Basically..

How do I create a simple Qt console application in C++?

http://stackoverflow.com/questions/4180394/how-do-i-create-a-simple-qt-console-application-in-c

main.cpp #include QtCore class Task public QObject Q_OBJECT public Task QObject parent 0 QObject parent public slots void..

Q_OBJECT throwing 'undefined reference to vtable' error [duplicate]

http://stackoverflow.com/questions/4774291/q-object-throwing-undefined-reference-to-vtable-error

throwing 'undefined reference to vtable' error duplicate This.. the error class T public QObject public QGraphicsItem Q_OBJECT public T QRectF boundingRect const return QRectF void paint.. to `vtable for T' If I comment out the line that contains Q_OBJECT it compiles fine. I need signal and slots with QGraphicsItem..

How to emit cross-thread signal in Qt?

http://stackoverflow.com/questions/638251/how-to-emit-cross-thread-signal-in-qt

the following code main.h class CThread1 public QThread Q_OBJECT public void run void msleep 200 std cout thread 1 started std.. signals void MySignal void class CThread2 public QThread Q_OBJECT public void run void std cout thread 2 started std endl exec.. does what you want it to do class MyObject public QObject Q_OBJECT public slots void MySlot void std cout slot called std endl..

Image scaling (KeepAspectRatioByExpanding) through OpenGL

http://stackoverflow.com/questions/9011108/image-scaling-keepaspectratiobyexpanding-through-opengl

ui_yuv_to_rgb.h class oglWindow public QMainWindow Q_OBJECT public oglWindow QWidget parent 0 Qt WFlags flags 0 ~oglWindow.. QImage #include QPainter class GLWidget public QGLWidget Q_OBJECT public GLWidget QWidget parent 0 ~GLWidget void paintEvent QPaintEvent..