Hi! How to create a manual QMouseEvent? I wanna do this because I want to implement canvas dragging on midbutton. I'm referring to this code: http://levelfour.googlecode.com/svn/branches/dev/app/gui/GraphicsView.cpp It uses the following trick: if (event->button() == Qt::MidButton) { setDragMode(QGraphicsView::ScrollHandDrag); // create a new mouse event that simulates a click of the left button instead of the middle button QMouseEvent mouseEvent (event->type(), event->pos(), Qt::LeftButton, Qt::LeftButton, event->modifiers()); QGraphicsView::mousePressEvent(&mouseEvent); } That is, when midbutton is down, set the dragging mode and simulate a leftbutton press. The mouse release handler is similar and is omitted here. But when I tried in CommonQt I can only get "No applicable constructor QMouseEvent found for arguments..." Using "describe", I can see that the last two parameters should be QFlags<>, which is a template class. However there are no setXXX methods, so I cannot make changes to the current mouse event. Is there a workaround? - Rujia