I'm facing an odd problem with a code of mine. I have a menu item "Open File" which has a shortcut Ctrl+C. If I run the program and hit Ctrl+C, the program works like a charm, no problems. However, if I instead go to the menu item and click it, the function itself also works like a charm, but at the end of it, the program crashes. Here's the code:

Qt Code: 
  1. Canvas::Canvas(const QPoint& Position, const QSize& Size,QWidget* Parent) :
  2. 			   QSFMLCanvas(Parent, Position, Size),
  3. 			   MenuBar(this)
  4. {
  5. 	setMouseTracking(true);
  6. 	setAttribute(Qt::WA_DeleteOnClose);
  7. 	points.reserve(3000);
  8.  
  9. 	EqualizeSize=0;
  10. 	PointsVisible=true;
  11.  
  12. 	QMenu* menu = MenuBar.addMenu("File");
  13. 		menu->addAction("&Open",this,SLOT(OpenFile()),QKeySequence::Open);
  14. 		menu->addAction("&Save",this,SLOT(SaveFile()),QKeySequence::Save);
  15. 		menu->addAction("&Quit",QCoreApplication::instance(),SLOT(quit()),QKeySequence::Quit);
  16. //...
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The shortcut is never redefined anywhere else in the code (the code above is, in fact, the only time the function OpenFile() is called).

Am I doing anything wrong here? Why does using "Ctrl+C" work, but using the menu-button crash, at the end of the OpenFile() function? Does the fact that I set the menu ("File") as a temporary variable have anything to do with this?