Qt Dialog汇总

带确认选择对话框：

 void mainWindow::closeEvent(QCloseEvent * event) { 

 switch(QMessageBox::information(this, tr("CT Control View"),
             tr("Do you really want to log out CT Control View?"), 

             tr("Yes"), tr("No"), 0, 1 )) 
    { 

 case 0: 

 event->accept(); 

 break; 

 case 1: 

 default: 

 event->ignore(); 

 break; 
    }   
  }