qtablewidget设置html,Qt 设置QTableWidget,QListWidget,QTreeWidget鼠标右键

前言

今天看书看到，QListWidget 的鼠标右键方法(customContextMenuRequested)，但是写好鼠标右键的槽函数后依然不能用，结果是信号没触发。加上下面一句就对了。

ui->listWidget->setContextMenuPolicy(Qt::CustomContextMenu);

具体实现

ui->listWidget->setContextMenuPolicy(Qt::CustomContextMenu);

void MainWindow::on_listWidget_customContextMenuRequested(const QPoint &pos)

{

Q_UNUSED(pos);

QMenu *menuList = new QMenu(this);

QAction *add = new QAction(QStringLiteral("添加"), this);

QAction *del = new QAction(QStringLiteral("删除"), this);

QAction *modify = new QAction(QStringLiteral("修改"), this);

connect(add, SIGNAL(triggered()), this, SLOT(addClicked()));

menuList->addAction(add);

menuList->addAction(del);

menuList->addAction(modify);

menuList->exec(QCursor::pos());

// delete menuList;

}

void MainWindow::addClicked()

{

QMessageBox::about(this, QStringLiteral("提示消息"), QStringLiteral("你点了 add"));

}

效果

鼠标右键不能截图。。。