Hello Phil, any reason why this QGLWidget's constructor: QGLWidget(QGLContext *,QWidget * /TransferThis/ = 0,const char * = 0, const QGLWidget * = 0,WFlags = 0); doesn't also transfer the ownership of the QGLContext? QGLWidget::~QGLWidget always deletes the context. I also verified that a manual sip.trasnferto does the right thing and avoid double deletion crashes. -- Giovanni Bajo _______________________________________________ PyKDE mailing list PyKDE@mats.imk.fraunhofer.de http://mats.imk.fraunhofer.de/mailman/listinfo/pykde