win7显示图标怎么调小-(win7系统的图标怎么调小)

4.去掉标题栏中最大化最小化按钮

1 //关闭按钮失效2 this->setWindowFlags(Qt::WindowMinMaxButtonsHint);3 //去掉最大化最小化按钮，保留关闭按钮4 this->setWindowFlags(Qt::WindowCloseButtonHint);

5.添加任务栏图标

在MainWindow.h文件中添加如下代码

1 #include <QSystemTrayIcon> //任务栏类 2 #include <QMenu> //菜单类 3 4 private: 5 6 //窗口任务栏属性 7 QSystemTrayIcon *trayIcon; 8 QMenu *trayMenu; 9 QAction *quitAction; //退出程序10 QAction *restoreWinAction; //恢复窗口11 void createMenu();

1 private slots:2 void 电脑 showNormal();

在mainwindow.cpp中添加代码

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1 createMenu(); 2 3 //判断系统是否支持托盘图标显示 4 if(!QSystemTrayIcon::isSystemTrayAvailable()) 5 { 6 return; 7 } 8 9 //实例化托盘图标控件10 trayIcon = new QSystemTrayIcon(this);11 trayIcon->setIcon(QIcon(":/new/prefix1/icon")); //设置托盘图标显示12 trayIcon->setToolTip("Calculator"); //显示提示信息13 trayIcon->showMessage("托盘","托盘管理",QSystemTrayIcon::Information,10000);14 trayIcon->setContextMenu(trayMenu); //绑定托盘菜单15 trayIcon->show(); //在任务栏显示图标16 17 //绘制任务栏菜单18 void MainWindow::createMenu()19 {20 restoreWinAction = new QAction("恢复(&R)",this);21 quitAction = new QAction("退出(&Q)",this);22 23 //恢复窗口24 connect(restoreWinAction,SIGNAL(triggered(bool)),this,SLOT(showNormal()));25 26 //退出程序27 connect(quitAction,SIGNAL(triggered(bool)),qApp,SLOT(quit()));28 29 //添加菜单30 trayMenu = new QMenu((QWidget*)QApplication::desktop());31 trayMenu->addAction(restoreWinAction); //将控件绑定到菜单32 33 //添加分隔符34 trayMenu->addSeparator();35 trayMenu->addAction(quitAction);36 }37 38 //恢复程序窗口39 void MainWindow::showNormal()40 {41 this->show();42 }43 44 //最小化隐藏界面45 void QWidget::changeEvent(QEvent *e)46 {47 if((e->type()==QEvent::WindowStateChange)&&this->isMinimized())48 {49 this->hide();50 }51 }
电脑