Hi there,

I have some strange problem with the qobject_cast. I was successfully using the same code at the another class and after I moved the code to the new class it won't work anymore. If I build the project with the debug configuration and run it at the debug mode I can't even debug it normally because debugger stops automatically at the qmetaobject.cpp files "QObject *QMetaObject::cast(QObject *obj) const" function. And this happens even though I haven't set the breakpoint in it... And it won't continue debugging through there even I press "Continue".

Here's the code where I use qobject_cast... the problem goes away if I comment out these lines. So the problem should be related to this, I assume

Note that at the code the "component" is type QWidget *component
Qt Code: 
  1. void GUIComponent::setComponentOptions(const QString componentOptions)
  2. {
  3.     options = componentOptions;
  4.  
  5.     if(QSlider *slider = qobject_cast<QSlider *>(component))
  6.     {
  7.         if(options == "horizontal")
  8.             slider->setOrientation(Qt::Horizontal);
  9.     }
  10.     else if(QPushButton *button = qobject_cast<QPushButton *>(component))
  11.     {
  12.         button->setText(options);
  13.     }
  14. }
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Probably it is just some stupid mistake like usually

Any help would be greatly appreciated.