Qt学习笔记 多个QPushButton连接到一个槽

通过QPushButton的
QString  whatsThis() const
void   setWhatsThis(const QString &)

实现标识传递。

 

添加多个按钮，

  for(int i=0;isetText("Process"+QString::number(i+1));

        ui->gridLayoutProcess->addWidget(radio,i,0,1,1);

        QPushButton *btn = new  QPushButton(this);
        btn->setText("Setup");
        btn->setWhatsThis(QString::number(i+1));
        ui->gridLayoutProcess->addWidget(btn,i,1,1,1);

        connect(btn,SIGNAL(clicked()),this,SLOT(on_pushButton_clicked()));

    }

槽函数 

void WProcessPlasma::on_pushButton_clicked()
{

    QPushButton* pBtn= qobject_cast(sender());
    QString  tag= pBtn->whatsThis();

    QMessageBox::information(this,"",tag);

}