我定义了类MyGraphicsView,它是QGraphicsView的子类.然后,我在MyGraphicsView中添加了一个信号test().在我的MainWindow类中,我有MyGraphicsView*myView,我连接如下:
connect(myView,SIGNAL(test()),this,SLOT(zoom()));
但我得到了:
QObject::connect: No such signal QGraphicsView::test() in ..\Proto_version_2\mainwindow.cpp:73