Qt 改变鼠标形状

 1 this->setMouseTracking(true);      //设置为不按下鼠标键触发moveEvent
 2 void mouseMoveEvent(QMouseEvent* event)
 3 {
 4     QPoint mousepos = event()->pos();
 5 
 6     //在坐标（0 ~ width，0 ~ height）范围内改变鼠标形状
 7     if(mousepos.rx() > 0
 8        && mousepos.rx() < width
 9        && mousepos.ry() > 0
10        && mousepos.ry() < height)
11     {
12            this->setCursor(Qt::CrossCursor);
13     }
14     else
15     {
16         this->setCursor(Qt::ArrowCursor);      //范围之外变回原来形状
17     }
18 }

1 Qcurosr *myCursor=new QCursor(QPixmap(":/images/custom.png"),-1,-1);    //-1,-1表示热点位于图片中心
2 this->setCursor(*myCursor);