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qgrAphiCsviEw ADDwiDgEt可以添加多次吗

原因: QGraphicsScene::addWidget() creates a QGraphicsProxyWidget which does not support widgets which draw directly onto the screen, like a QGLWidget 解决方案: 将QGLWidget设置为QGraphicsView的viewport,然后在QGraphicsView::dr...

原因: QGraphicsScene::addWidget() creates a QGraphicsProxyWidget which does not support widgets which draw directly onto the screen, like a QGLWidget 解决方案: 将QGLWidget设置为QGraphicsView的viewport,然后在QGraphicsView::dr...

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