Qt QTablewidget 鼠标悬停在单元格上悬浮显示单元格内容

效果图如下

相关代码如下

ui->tableWidget->setMouseTracking(true);  //设置鼠标追踪

connect(ui->tableWidget,SIGNAL(entered(QModelIndex)),this,SLOT(slot_tooltip(QModelIndex)));

void Ship_Detection::slot_tooltip(QModelIndex index)
{ 

   QToolTip::showText(QCursor::pos(),index.data().toString());

       return ;
}

参考

1. https://zhidao.baidu.com/question/1859825644316868867.html  

2. https://blog.csdn.net/tony2278/article/details/77965800  

3. https://blog.csdn.net/wb175208/article/details/87870214?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.control&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.control