楼主是不是要这个?
Qt4.0里面是这样
void test31::contextMenuEvent( QContextMenuEvent * e )
{
QMenu contextMenu(this); // Qt3.X里面用QPopupMenu
contextMenu.addAction("Cut");
contextMenu.addAction("Copy");
contextMenu.addAction("Paste");
contextMenu.exec(e->globalPos());
}