I am trying to embed a simple "Hello World" text qml into a QMainWindow derived userdefined object.
In any possible idea that i tested, the text does not show up.

This is my object constructor code:
Qt Code: 
  1. MainWindow::MainWindow() : QMainWindow ()
  2. {
  3. 	this->resize(1024, 768);
  4.  
  5. 	QWidget *topFiller = new QWidget;
  6. 	topFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
  7.  
  8. 	QWidget *bottomFiller = new QWidget;
  9. 	bottomFiller->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
  10.  
  11. 	QVBoxLayout *layout = new QVBoxLayout;
  12.  
  13.         layout->setMargin(5);
  14. 	layout->addWidget(topFiller);
  15. 	layout->addWidget(bottomFiller);
  16. 	this->setLayout(layout);
  17.  
  18. 	createActions();
  19. 	createMenus();
  20.  
  21. 	QQmlEngine engine(this);
  22. 	QQmlComponent component(&engine, QUrl::fromLocalFile("D:\\test.qml"),this);
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This is my main app code:
Qt Code: 
  1. int main(int argc, char *argv[])
  2. {
  3. 	QApplication a(argc, argv);
  4. 	MainWindow mw;
  5. 	mw.show();
  6.  
  7. 	return a.exec();
  8. }
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This ist the QML file:
Qt Code: 
  1. import QtQuick 2.0
  2.  
  3. Text {
  4.     text: "Hello world!"    //a basic greeting
  5.     /*
  6.         We want this text to stand out from the rest so
  7.         we give it a large size and different font.
  8.      */
  9.     font.family: "Helvetica"
  10.     font.pointSize: 24
  11. }
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