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並前往https://coderedirect.com/questions/364450/why-does-qgraphicsitemscenepos-keep-returning-0-0

Why does QGraphicsItem::scenePos() keep returning (0,0)

I have been toying with this piece of code:QGraphicsLineItem * anotherLine = this->addLine(50,50, 100, 100);qDebug() << anotherLine->scenePos() ...

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查詢 「QGraphicsLineItem」的人也找了：

  1. QGraphicsItem
    2.
  2. QGraphicsView
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  3. Qgraphicsitem line
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  4. QGraphicsItem paint
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  5. QGraphicsScene
    6.
  6. QGraphicsSceneMouseEvent
    7.
  7. QPen
    8.
  8. QGraphicsRectItem
    9.