求助 [复制链接]

void RectItem::dropEvent(QGraphicsSceneDragDropEvent*event)
{
   dragOver = false;
if(event->mimeData()->hasColor())
//我们通过类型转换来获得颜色
   color =QVariant::value<QColor>(event->mimeData()->colorData());
   update();
}




D:\qt\graphicview02\myitem.cpp:103: 错误:no matching function for call to 'QVariant::value(QVariant)'
    color =QVariant::value<QColor>(event->mimeData()->colorData());请问老师出这个问题是怎么回事呢？？我用的是qt5
                                                                 ^

value 不是static成员，不能这么用

具体见Manual：  T QVariant::value() const

QColor color = qvariant_cast<QColor>(event->mimeData()->colorData());