based on the fact that the crash never seemed to have happened with default screen resolutions and also inspired by the only other getmem usage in the code I came up with this simple solution which seems to work just fine. I do not understand why getmem seems to need this, but well - feel free to explain.

#include <QLabel>
#include <QRect>
#include <QList>
#include <QMouseEvent>

class PixLabel : public QLabel
{
	Q_OBJECT

public:

	PixLabel();
	QList<QRect> rects;

public slots:
	void AddRect();

private:
	void paintEvent(QPaintEvent * event);
	void mousePressEvent(QMouseEvent * e);
};